Oracle sql conditional where clause based on parameter. But only one of them works.

Oracle sql conditional where clause based on parameter. Mar 13, 2015 · Using a CASE expression in the WHERE clause should do the trick. COL3 is obviously TRUE then this filter will not have any impact on the result set. if user inputs All, then both true and false should go to parameters. I am using Oracle 9i. mgr_id) An workaround query may be: Oct 6, 2015 · I have a plsql procedure which take an input variable. You can see in given syntax, if the parameter value is change, condition also get changed. column2 = "something" AND (:parameter is null or subResult = :parameter) But I can't reference the result of the subquery subResult inside my WHERE condition. first_name, t. Total AS YearToDate FROM ( SELECT Name, COUNT(Column1) AS Total FROM Table1 WHERE Occurred_Date BETWEEN '2010-06-01' AND '2010-06-30' --Total GROUP BY Name ) AS CurrMonth FULL OUTER JOIN ( SELECT Name, COUNT(Column1) AS Total FROM Table1 WHERE Occurred_Date BETWEEN '2010-01-01' AND '2010-06-30' --YearToDate GROUP Jun 8, 2015 · But given the use case, making the parameter NULL would be a little better. Introduction to SQL CASE Statement. That expression should be morphotropic(;)) So, assuming stardard oracle's employee schema, managers are: select * from emp e where exists (select emp_id from emp where e. status = (CASE WHEN status_flag = STATUS_ACTIVE THEN 'A' WHEN status_flag = STATUS_INACTIVE THEN 'T' ELSE null END) AND t. I dont really know what to search for, so I ask here for links or even a word to search for. So they have the somewhat unnatural concept of "condition" which is something that goes into logical conditions (like in the WHERE clause). IsFrozen FROM employee, employeerole, roledef WHERE employee. Great, the plan is a Full table scan (FTS) and that plan is cached and you get all the rows back in 5 minutes. Check below logic, you can use N number of dynamic / un-sure parameters / conditions-- flages declare @chk_vendor bit; declare @chk_entity bit; -- setting off set @chk_entity = 0; set @chk_vendor = 0; if @Vendor_Name is not null begin set @chk_vendor = 1; end else if @Entity is not null begin set @chk_entity = 1; end SELECT * FROM table_name Jul 3, 2012 · Parameter rf is a list of variables to be input into the WHERE clause. May 6, 2024 · This post is a continuation of SQL Offset-Fetch Clause Now, we understand that how to use the Fetch Clause in Oracle Database, along with the Specified Offset and we also understand that Fetch clause is the newly added clause in the Oracle Database 12c or it is the new feature added in the Oracle database 12c. May 19, 2014 · The simplest (though probably not the most efficient) way is to handle the null inside the SQL statement itself, e. com. contactid FROM YOUR_TABLE t WHERE flag IN ('Volunteer', 'Uploaded') GROUP BY t. id, a. For one of the parameters passed in, I need a different WHERE clause depending on its value - the problem is that the 3 values would be where MyColumn. I can produce a query that is: SELECT * FROM table WHERE: status_id = 3 date = &lt;some date Feb 3, 2015 · Say I have a sample table: id_pk value ----- 1 a 2 b 3 c And I have a sample PL/SQL block, which has a query that currently selects a single row into an array: Jan 21, 2017 · Making statements based on opinion; back them up with references or personal experience. Orders AS ORD ON CUS. status FROM employeetable t WHERE t. id=emp. I need to check a value from a parameter, and depending on it, apply the right clause. Oracle introduced the so-called bind peeking with release 9i. RecordStatus = 1' to most search conditions and join conditions involving this table and experiencing subtle bugs when it inevitably gets omitted on Aug 22, 2005 · The passed in parameters to a procdure that returns a ref cursor would use the conditional logic in the SQL to determine the actual values to use in filtering the SQL statement. Dynamic SQL can open up the risk of SQL injection attacks, and as noted in "The Curse and Blessings of Dynamic SQL", there are also more subtle gotchas to watch out for. Apr 12, 2021 · I have an 'optional' parameter in my stored procedure, if my parameter has certain value then I need to add a conditional where statement in my existing query. buf 1 with t1 as 2 ( 3 select 1 as seq, 'nothing 1' as some_type from dual union all 4 select 2 as seq, 'nothing 2' as some_type from dual union all 5 select 3 as seq, 'something 1' as some_type from dual union all 6 select 4 as seq, 'something 2' as some_type from dual union all 7 select 5 as seq, 'something 3' as Jul 29, 2011 · need to put a condition in my sql where clause such that if the value is null, then it should be ignored from the condition. Feb 10, 2017 · If we need to query a table based on some set of values for a given column, we can simply use the IN clause. contactid HAVING COUNT(DISTINCT t. tablename is a static property which does not change. when condition is not met then return all rows. For example, I have a query which takes the ID of the organisation as parameter: Summary: in this tutorial, you will learn how to use the SQL WHERE clause to filter rows based on specified conditions. So, if on rows where ParkID IS NULL, we want to always keep those rows. This is a Sep 18, 2008 · There isn't a good way to do this in SQL. length), I want to execute different SQL statement. Jan 30, 2013 · Now, order by clause use an expression and order rows upon it. While I have worked on other DBMS such as Ingres, MS-SQL, MS-Access, and DB2, I have not worked with Oracle before my current assignment. 2. account_ref_srce_system_cd = v_nat_srce_system_cd and v_date = bp_data_as_at_dt ) ) Feb 25, 2013 · I've a procedure that takes two parameters, I want to include/exclude a parameter in Where clause based on parameter's length: For example, Procedure: SearchCountry(vName, vContinent) Query: Select * from Country where Name like '%vName%' and Continent like '%vContinent%' Try writing the where clause this way: WHERE (T2. acocunt_ref_id = v_account_no and bp. Nov 6, 2016 · I am trying to write a SQL Select statement to return records based on a user input through a front end. New requirement involves greater than or equal to, so I tried this: AND CASE WHEN (p_start_date = NULL) THEN p. I don't know Oracle and I don't know what its "Adaptive Cursor Sharing" does. First of all, if the table is small enough, simply use the DELETE statement (it had to be mentioned): 1. mktrinit = sls. Moreover, we have discussed the differences between applying conditions in the JOIN clause and the WHERE clause and the usage of both. : SELECT * FROM table WHERE col1 = param1 AND (param2 IS NULL OR col2 = param2) This by-passes the clause for all rows if the parameter is null. I define "usable" there loosely - needs to cover the query or not introduce lookups that are too costly. Technical questions should be asked in the appropriate category. col1. Use another data type to run your process. Nov 8, 2017 · Kindly suggest me any other solution to change 'where condition' depending on parameter value, since in given sql, 'where' condition is depend on parameter p value. cust_id = '14714') union select m. An example is if IN_1_id is passed a blank value, the where clause in the first select statement would show where ANY value (even null) is in the opt. create or replace procedure test_pl(rf in varchar2) IS counter number; BEGIN select count(*) into counter from test_pl_imp where column_name in (rf); dbms_output. assetid, w. It was quick and easy to find. CurrentSpeed, w Nov 19, 2010 · DECLARE @Parameter int = null; SELECT * FROM TABLE WHERE [AlternateID] is not null AND (@Parameter is not null AND [AlternateID] = @Parameter) I incorrectly thought that (@Parameter is not null AND [AlternateID] = @Parameter) would simply not form part of the full WHERE clause is @Parameter was null. So I need an option to build up a SQL statement in PL/SQL within a recursive function. So if all 4 parameters is null I would show the entire table. Some approaches I have seen: 1) Use CASE combined with boolean operators: WHERE OrderNumber = CASE WHEN (IsNumeric(@OrderNumber) = 1) THEN CONVERT(INT, @OrderNumber) ELSE -9999 -- Some numeric value that just cannot exist in the column END OR FirstName LIKE CASE WHEN (IsNumeric(@OrderNumber) = 0) THEN '%' + @OrderNumber ELSE '' END Jul 15, 2009 · How can I select records from a table , say emp, when I have a parameter for where condition like if empno is known then use in where clause, if ename is known then use ename in where clause, if both are known then use both parameters in where clause. Now if user pass something in where clause it makes sense to apply it but if user let 'All' values pass through a prompt it make sql very slow. Dec 18, 2008 · I have plsql procedure which accepts certain parameters e. [dbo]. As you noticed this can be a very long where-clause. – Jan 24, 2013 · To supplement the rest of the answers here, which deal primarily with NULL values and COALESCE/NVL/NVL2: SELECT * FROM TheTable WHERE field1 = CASE field2 WHEN 0 THEN 'abc' WHEN 1 THEN 'def' ELSE '' END May 17, 2016 · Thank you posting the solution. g. Conditional Expressions. The WHERE Conditional clause in the Oracle database is an optional clause used in SQL statements. COMPARE_TYPE <> 'A' AND T1. customer_id = pcustomer_id. ex: select * from table WHERE 1 = CASE WHEN channel = 1 AND REGEXP_LIKE Jul 15, 2009 · How can I select records from a table , say emp, when I have a parameter for where condition like if empno is known then use in where clause, if ename is known then use ename in where clause, if both are known then use both parameters in where clause. LOCK TABLE my_table WRITE; 2. I want to get values based on the parameters, but if a parameter is NULL then that parameter isn't checked. After all, 0 is a value which you want to treat as a different value, while NULL semantically makes more sense for specifying 'no filter'. Jun 7, 2016 · As far as I know, latest version of SQL Server still has a feature called "parameter sniffing" and execution plan caching, which is usually useful, but for this kind of queries is often harmful. But the good news is that you can (somewhat) work around this limitation. – FrenkyB. Making statements based on opinion; back them "Where @parameter is null or " doesn't quite make sense although it might work. – Dec 19, 2012 · Transform a list of strings by using CONNECT BY in order to obtain a conditional IN statement. sql> ed wrote file afiedt. This variable (my_plsql_var) I need to decide the where clause of my select statement. put_line Sep 1, 2011 · I need help writing a conditional where clause. If all the input parameters are null, then return the entire table, else use the parameters and return the records Jul 2, 2010 · Based on my condition,(for eg. We can use it to perform conditional branching within the SELECT statement across various SQL databases, including SQL Server, MySQL, and PostgreSQL. This predicate happens to be a subquery that needs to be included in the WHERE clause if certain value is passed onto the PL/SQL stored proc: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Jul 14, 2018 · Following oracle query complies and works fine: SELECT Employee. you have to remember to add AND Table. Here is the sample query. COL3 = TB2. And the :parameter is optional, meaning if :parameter is null, include row in result. Mar 23, 2009 · When restricting data based on a parameter I usually use the following: AND p. field1, field2, (!) and the contents can change. EmployeeName, Employee. ColumnName != '' is equivalent to e. employeeid AND employeerole. start_date = p. You can change the order of evaluation by using parentheses. employeeid = employeerole. This is why when there are lots of parameters (several search fields in a big form for example), I like to use dynamic SQL: Oracle BI Server computes the results based on the level specified in the GROUP BY clause. Conditional WHERE based on SQL Server parameter value. for example. For an in-depth explanation and some examples of using the GROUP BY clause in requests against the Oracle BI Server, see Rules for Queries with Aggregate Functions. Jul 12, 2012 · I want a different set where condition to be executed on a query based on a bind variable in Oracle sql . roleid AND rolename IN ( CASE WHEN (1 < 2) THEN ('Owner Role') WHEN (2 < 1) THEN ('Eval Owner Role') END); Aug 13, 2017 · consider a union query using exists/not exists clauses where at least one of the select statements will return:. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Jun 14, 2022 · How to embed a sub-prodecure call in a SELECT statement in an Oracle 11g PL/SQL stored procedure 2 Grant permission to execute stored procedure without granting access to underlying table - Oracle Nov 19, 2017 · I've added another parameter, a drop-down list ("InventoryDropDownList"), but I can't figure out how to work this into my select statement. Apr 23, 2018 · Hello guys, I would like to know whether it is possible to use a CASE condition in my WHERE clause using a parameter. If I use both the conditions it updates 0 records, otherwise it updates ~700K or ~80K records. name = parameter /*FILTER BY NAME*/ Apr 17, 2012 · using OR and Dynamic sql Query lead us to performance hit, It seems the best bet is using IF . The number of variables to be input is not static. I used the Jul 26, 2020 · Making statements based on opinion; back them up with references or personal experience. If the parameters are not null, and there is a usable index on DateCreated, it will be used. The problem for Oracle is that the SQL's exec plan has to be optimized for ANY combination of bind parameter values. Dec 7, 2023 · You can use a case expression like this: The database processes the expression from top-to-bottom. If your parameters are NULL you're probably doing a full scan anyway. I am trying to make it possible to have [ERROR_FREE] registered as '0', '1' or 'NULL' based on a variable passed from my C# application. Jul 18, 2016 · Making statements based on opinion; back them up with references or personal experience. You want to use this optional parameter in the SQL query. ELSE or Case statement ,I think By this way two execution plan would be make and would be cached , I had such a question, please take a look at it for getting started . e. If the date is null then I want to show all the records from the table, and if the date is not null i want to add where conditions based on that value. For 4 possible columns on search criteria it is still possible to have 2^4-1 possible SQL texts to use. Ask Question Asked 12 years, 10 months ago. In a [NOT] IN condition in a WHERE clause, if the right-hand side of the condition is a subquery, you cannot use LEVEL on the left-hand side of the condition. But here in Linq I can only think of using an IF condition where I will write the same query thrice, with each IF block having an additional condition. Sep 8, 2014 · Try the conditional update, Update with Case for conditions. id = user_id INTO u_access_level; -- Result for simple users IF u Nov 18, 2015 · (It gets slightly more complicated if the date column and parameter can contain times. Oracle PL/SQL: Conditional Where Clause. Basically I want to use the like based on null check's result. employid, t. However, you can specify LEVEL in a subquery of the FROM clause to achieve the same result. I want to use the CASE construct after a WHERE clause to build an expression. COMPARE_TYPE = 'A' AND T1. ORDERDELIVERY is just a ~temporary table containing ORDER_IDs related to the parameter p_DrumNo. Learn more about Dec 23, 2016 · You don't necessarily need dynamic SQL just because certain where conditions don't apply when they are not present. SOME_TYPE LIKE 'NOTHING%') OR (T2. ). Description, Employee. IS NULL; IS NOT NULL; ANY VALUE (NULL AND NOT NULL) (essentially no WHERE clause) I have a SQL that needs to execute with or without a condition/predicate in the WHERE clause. Introduction to SQL WHERE clause. I don't want to have a separate statement and basically here what I want to do it but I'm not sure if possible with SQL Server Jul 29, 2011 · need to put a condition in my sql where clause such that if the value is null, then it should be ignored from the condition. This solution is usefull if you have serveral conditionals since you can write the IN clause as a single expression without any other AND, OR restrictions. Jul 2, 2008 · I have 4 assignable parameters for filtering records. description FROM Table1 a WHERE (IF x = 'Y' THEN a. When you say you don't need the where clause if condition is not met, then all you want is a condition like WHERE 1 = 1, i. I want to use as: when pcustomer_id IS NULL then WHERE c. FirstName = 'John' -- Condition in WHERE SELECT * FROM dbo. sample_column1 =NVL(t. The SQL CASE statement specifies a conditional expression to perform different actions depending on the input expression value. RecipientId = @UserId; --Inbox END; END; GO Mar 23, 2009 · When restricting data based on a parameter I usually use the following: AND p. Apr 17, 2018 · You can use CASE statement inside where clause to check the condition like below. It evaluates a condition and Oracle SQL : timestamps in where clause. It has to be optimized before Oracle even sees bind variables. I want to write the Select statement like this: SELECT somefields FROM sometable WHERE CASE variable WHEN 'blank' THEN field IS NULL ELSE field = field END May 1, 2013 · I am passing a parameter from a dropdownlist listitem value assigned 'PPNo'. Ex: select . Can someone guide me on how to approach the following: x CHAR:= 'Y'; --VARIABLE SELECT a. @Rene The order of conditions does not matter at all. If the query parameter is null or empty, I want to select all records & drop the Like %%. Oracle SQL: Syntax for WHERE clause with one date between two others. Main idea is to generate a sql based on inputs dynamically. invno = '67883' and gl. In what scenarios would you prefer using a CASE WHEN statement over using a JOIN clause? Answer: While a JOIN clause is used to combine data from multiple tables, CASE WHEN Feb 16, 2011 · The optimizer doesn't understand correctly this type of clause. code_sp_type FROM vtr_t_doc_atch_type_master typ, vtr_t_doc_atch_job_mapping jmap WHERE typ. SOME_TYPE NOT LIKE 'NOTHING%') Share Apr 23, 2018 · I would like to know whether it is possible to use a CASE condition in my WHERE clause using a parameter. Name, YTD. To select specific rows from a table, you use a WHERE clause in the SELECT statement. A note to SSRS report developers with Oracle datasource: You can use BOOLEAN parameters, but be careful how you implement. Create Procedure( aSRCHLOGI Sep 5, 2018 · TABLE function and where clause parameters retrieving Hi there,My goal is to return fieldX or fieldY depending on the where clause (which I don't have any control on since it's generated by a third party software). Jan 19, 2012 · Even if it's possible, it's not a good idea. start_date) so IF the parameter is null THEN I just join on itself, ELSE we filter on parameter. select m. here is my situation: I have a bit value that determines what rows to return in a select statement. Id <> 123) Everything you put in the where clause needs to be in the form of an expression. It returns the value for the first when clause that is true. Oracle PL/SQL does not play nicely with BOOLEAN, but you can use the I'm attempting to use the IFELSE construct in my WHERE clause to selectively apply conditions to my SELECT. SQL Server conditional where clause based on declared variable. Sql conditional statement on where clause. The syntax for the CASE statement in a SQL database is: Jul 19, 2016 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. . ColumnName != null which always evaluates to NULL. WHERE table1. Then you pass in a 1 for the flags that you want to check and leave the others null. ORDER BY Clause Syntax The Oracle BI Server accepts any valid SQL ORDER BY clause syntax Feb 7, 2012 · Might be a little overkill, but the following stored procedure can be used to achieve what you want: DROP procedure IF EXISTS `listAccessibleUsers`; DELIMITER $$ CREATE PROCEDURE `listAccessibleUsers`(IN user_id INT) BEGIN DECLARE u_access_level INT; -- Select the user access level SELECT access_level FROM users WHERE users. May 16, 2017 · Never forget that in Oracle SQL the '' literal (empty string) is the same as NULL, hence your predicate e. The column in the sql table I'm wanting to select contains Yes/No values. Should this work? CREATE OR REPLACE package body If_Else_Pack IS PROCEDURE Moving ( obj_A IN varchar2, obj_B IN varchar2, obj_C IN varchar2, obj_D IN varchar2, cur_Result OUT T_CURSOR ) IS BEGIN OPEN cur_Result FOR SELECT w. Oct 3, 2010 · Here's MySQL's documentation about the TRUNCATE statement. The CASE expression is a conditional expression: it evaluates data and returns a result. However it was making the entire WHERE Jun 15, 2012 · Using dynamic SQL is the simplest approach from a coding standpoint. Thank you! Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group Apr 27, 2017 · In addition to being slightly more readable, this also eliminates four function calls from the statement, making it more efficient. Apr 2, 2020 · Case construct with WHERE clause Hi Tom, I have a question and I don't know if this is possible or if i'm jsut doing something wrong because i get multiple errors like missing right paren, or missing keyword. Basically, ("InventoryDropDownList") has two list items right now, but could grow, based upon the list selection, I'd like the search-box to related to a different column. The TABLE() function is very close to what I want to achieve : select * from TABLE(customFunction()) where param1=XXX AND param2 How can i modify SQL dynamically in BI Publisher 12c based on user's choice? I have a requirement where i need to apply multiple where clauses. It seemed to be used in constrast to using any of the dynamic SQL capabilities in Oracle. – Aug 8, 2013 · Here is another using just the WHERE Clause: SELECT * FROM Table A WHERE (@Checkbool = 1 AND A. You select only the records where the case statement results in a 1. This is working fine with the SQL-statement below except for one scenario: if none of the parameters are assigned I get no records at all but then I need all of the records. SenderId = @UserId; --Sent END; ELSE BEGIN SELECT * FROM MailboxMessages m WHERE m. If the value is true, I need to return rows where the import_id column is not null, if false, then I want the rows where the import_id column is null. Using dynamic SQL is overkill. The result of the case statement is either 1 or 0. sql> select * from emp t 2 order by 3 case 4 when comm is null 5 then sal 6 else empno 7 end 8 / empno ename job mgr hiredate sal comm deptno ----- ----- ----- ----- ----- ----- ----- ----- 7369 smith clerk 7902 17-dec-80 800 20 7900 james clerk 7698 03-dec-81 950 30 7876 adams clerk 7788 23-may-87 1100 20 7934 miller clerk 7782 23-jan-82 Dec 1, 2021 · I am creating oracle report where if the user inputs true or false, the respective values should go to parameter. Customers AS CUS INNER JOIN dbo. roleid = roledef. from table/view where first condition always and optional second condition based on the value based on the apex variable :P222_VARIABLE_NAME I am getting the value of the parameter at the runtime using a I have a form where users can specify various parameters to dig through some data (status, date etc. Jun 24, 2024 · This article has explored different types of SQL conditional joins, including conditional join based on column value, conditional join if exists, and conditional left join. @Matt I disagree 100%. Now consider the below example: Suppos Jun 16, 2016 · I want to select rows using LIKE %:myParam% based on the query parameter ONLY if it is not null or empty. I have a stored procedure in SQL Server 2000 that performs a search based on parameter values. Total AS Total, YTD. the WHERE clause? For example-- Condition in JOIN SELECT * FROM dbo. Select Row Based on Column. The following illustrates the syntax of the WHERE clause in the SELECT statement: SELECT column1, column2, You could have a parameter for each possible flag column, then check if the parameter is null or the value in the column is equal to the parameter. Let's make it more intuitive by splitting the two apart: WITH CTE1 AS ( SELECT * FROM MemberTable WHERE BranchNumber = '01' AND MemberStatus = 'Active' ) , CTE2 AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY UserID ORDER BY [MemberDate] DESC) AS RowNumber FROM CTE1 ) SELECT * FROM CTE2 WHERE RowNumber = 1 Nov 16, 2010 · Once you put this into production, the first time Oracle loads the query it peaks at the bind variable and formulates a plan based on that. In this case, the best way is to probably just union two exclusive queries: If you can't change the design (SQL DDL) because many other tables reference this table then I'll wager that your SQL DML also suffers as a result i. The WHERE clause acts as a filter on the rows of the result set produced by the FROM clause. The result it returns is based on whether the data meets certain criteria. This performs efficiently when you have complex SQL with large tables and you want to avoid IN('All') kind of default clauses. For understandability, I'll simplify the problem and basically my update statement should look like this: UPDATE SAMPLE_TAB1 t SET t. Allowing the optimizer to re-evaluate each statement in the procedure at runtime will provide a much better chance of exploiting the right index when Mar 28, 2013 · For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. Jun 3, 2013 · Either produce different SQL depending on the contents of that parameter, or alter your SQL like this: WHERE (column2 = variableY) OR (variableY IS NULL AND column2 IS NULL) Share Nov 17, 2016 · In PostgreSQL I am trying to build a where clause in a function that uses an inbound parameter to determine the contents of the IN For example: select fld1, count(fld1) from xyz where fld1 in ( Hi Psur, I have a similar problem, but I have 2 conditions in where condition in Update clause. I have a parameter based on which I need to include or exclude one condition in a where clause. description, typ. New requirement involves greater than or equal to, so I tried this: Apr 24, 2007 · You would just use a where clause for this: where ( (v_account_id is not null AND bp. Sep 5, 2013 · I am creating a SQL query in which I need a conditional where clause. CustomerID Dec 22, 2013 · The ROW_NUMBER is evaluated after the WHERE. last_name, t. cust_id = '14714' and exists (select sls_cont_no from gl where gl. If user selects any parameter(s) then only the 'WHERE' be active else it will be inactive. ) Jul 23, 2014 · SQL Parameter for ALL. It extracts only those records that fulfill the specified condition. But the predicate I wrote is definitely sargable. I was trying to think of having a cursor with condition select statement. SELECT C_FirstName, C_LastName, C_UserName, C_UserID FROM CUSTOMER WHERE (FirstN IS NULL OR C_FirstName LIKE FirstN) AND (LastN IS NULL OR C_LastName LIKE LastN) AND (CUserName IS NULL OR C_UserName LIKE CUserName) AND (CID IS NULL OR C_UserID LIKE CID) Sep 25, 2014 · you can have case construct in the order by clause :. vehiclenumber, w. Ask Question Asked 7 years, 1 month ago. Thanks for accepting this as the answer but Tony Andrews solution is a lot more straightforward and, in my view, the better answer. If a parameter is not assigned the filter is ignored. name Is there any difference (performance, best-practice, etc) between putting a condition in the JOIN clause vs. [DateRange] ( @StartDate date, @EndDate date, @Location varchar(25), @Device varchar(25) ) RETURNS TABLE AS RETURN ( SELECT * FROM MyTable WHERE Date < @EndDate AND Date > @StartDate AND Location = CASE WHEN @Location IS NULL THEN Location ELSE SQL Basics; SQL Practice Set; Recommended articles: SQL Basics Cheat Sheet; What Is the SQL WHERE Clause? The Complete Guide to the SQL WHERE Clause; Enumerate and Explain All the Basic Elements of an SQL Query ; How to Write a WHERE Clause in SQL; Using AND, OR, and NOT Operators in SQL; See also: How to Order Alphabetically in SQL Oct 4, 2017 · How to have conditional where clause based on parameter value. Sep 30, 2016 · I'm interesting that how can I use if-then-else statement or any control structure in where clause in Oracle. Typically this is how I've seen it done: SELECT * FROM dbo. Problematic sample query is as follows: select case when char_length('19480821') = 8 then select count(1) from Patient when char_length('19480821')=10 then select count(1) from Doctor end Jun 22, 2009 · It's the canonical reference for dynamic SQL. Thus, the solution in this case is to write the condition in the form of an expression. But if query need to be performed based on multiple columns, we could not use IN clause( Use: SELECT t. customer_id IS NULL; and when pcustomer_id IS NOT NULL then c. Some how like this pseudo code--[B]cursor test_cursor is if condition == 't11' then select * from test1; else select * from test1; end if;[/B] begin for cursorVal in test_cursor loop //Doing the actual task on cursor data. Within an WHERE clause is it possible to select 'No' from the column where the passed parameter value is 'PPNo' and 'Yes' where the passed parameter value is 'PPYes'. How can I do that? I have tried with case-when but I am not sure How to use Like in it. Mar 14, 2013 · CASE might help you out: SELECT t. EmployeeId, Employee. CREATE PROCEDURE [dbo]. In this article, we'll introduce you to the syntax, formats, and uses of the CASE expression. 13. In first case if p='Closed' then select where q-isnull(r,0)=0 May 7, 2017 · The simple way to achieve this goal is to add a CASE expression to your SELECT statement. name from gl join sales_cont sls on gl. As others have noted, you should use dynamic SQL sparingly and in situations where no other method is suitable. Here we are just wrapping that SELECT statement in COALESCE which, if it returns null, will grab the second parameter's value instead, which is the same column we are comparing. It will sometimes produce a plan with a UNION ALL but if there are more than a couple of nvl, you will get full scan even if perfectly valid indexes are present. [MM] WHERE DateDropped = 0 --This is where i need the conditional clause Nov 25, 2011 · Let's say you have a stored procedure, and it takes an optional parameter. Name) AS Name, CurrMonth. Oct 20, 2016 · It is not an assignment but a relational operator. How can I do it? Dec 12, 2009 · Creating dynamic SQL need little trick and multiple steps. account_ref_id = v_account_id and v_date = bp. Per-row functions will destroy performance. The following illustrates the syntax of the WHERE clause: SELECT select_list FROM table_name WHERE search_condition ORDER BY sort_expression; Code language: SQL (Structured Query Language) (sql) The WHERE clause appears after the FROM clause but before the Sep 22, 2011 · The goal with this WHERE clause is to filter the result set on p_DrumNo if it´s passed in to the Stored Procedure. CREATE OR REPLACE PROCEDURE get_documents( pi_id IN VARCHAR2, pi_entry_pemit IN VARCHAR2, po_resultSet OUT sys_refcursor) IS BEGIN OPEN po_resultSet FOR SELECT typ. Since TB2. Hope this helps. 0. So, I have added that condition to the WHERE clause and in the remaining condition checks whether the variable is set to 1 (true) or if it is set to 0 (false) then it will also check for the condition on Column2. mktrinit where gl. CREATE FUNCTION [dbo]. Second problem is that you are trying output a boolean value from your CASE. This is my SP (as you can see, this only works for 1 parameter atm): Based on the script in question, it seems that you need the condition for Column1 irrespective of whether the variable @booleanResult is set to true or false. The WHERE clause then continues with further conditions but this specific one halts the query. Named parameters are case-sensitive. The stored procedure takes three input parameters @FromDate @ToDate @PersonnelNo Jul 25, 2013 · I have a stored procedure that fetches info from a table based on 4 parameters. I have also modified your CASE from early in the statement to equivalent conditions that use less function calls, are (arguably) easier to read, and that more clearly parallel your field aliases. Oct 25, 2017 · I'm trying to avoid dynamic sql. For example, we can use it to create IF-THEN-ELSE style queries that can be used to create, modify, or execute calculations based on certain criteria. In addition, we can use this approach across all three SQL dialects, including MySQL, SQL Server, and PostgreSQL. But, I only want to execute this AND on rows where ParkID IS NOT NULL. sample_column1, **SOME LOGIC**); This Oracle WHERE clause example uses the WHERE clause to join multiple tables together in a single SELECT statement. I use the following code for MS SQL and Sybase quite often to check whether a parameter is null or empty: SELECT * FROM tblName WHERE [ColumnName] = ISNULL(NULLIF(@parameter, ''), [ColumnName]) AND ('something else here') Apr 23, 2017 · My initial thoughts were some kind of 'if' branch within the statement, but it doesn't appear to allow this kind of syntax. A WHERE clause consists of a conditional expression, which is evaluated from left to right within a precedence level. If the date column isn't indexed or a partition key then you could just put trunc() around everything; if it is then it might be worth constructing a between expression. 3. If this were to be done using sql queries I would have used string builder to have them appended to the main strSQL query. It should be something like this: SELECT DateAppr, TimeAppr, TAT, LaserLTR, Permit, LtrPrinter, JobName, JobNumber, JobDesc, ActQty, (ActQty-LtrPrinted) AS L, (ActQty-QtyInserted) AS M, ((ActQty-LtrPrinted)-(ActQty-QtyInserted)) AS N FROM [test]. No need to use ad-hoc query (execute SP_ExecuteSQL). Oct 31, 2019 · Statement: SELECT *, CASE WHEN CommunicationType = 'field' THEN DENSE_RANK() OVER (PARTITION BY Property, CommunicationType ORDER BY [DATE] ASC) ELSE NULL END AS Rank FROM #Data Apr 26, 2017 · The "and :bv is null" clauses are required when using native dynamic SQL, but could be avoided by using DBMS_SQL. In SQL Server 2016 Parameter Sniffing can be controlled at database level. Here is what I have tried Table a contains a_id primary key a_role varchar2(10) SELE Aug 23, 2024 · Answer: Unlike the IF statement, CASE WHEN is SQL’s standard conditional construct and provides a more readable and flexible solution for handling multiple conditions. I have tried some queries but they do not work. This SELECT statement would return all supplier_name and order_id values where there is a matching record in the suppliers and orders tables based on supplier_id, and where the supplier's state is California. Conditional WHERE clause. If @ParkID = 22, then return both rows. Jun 28, 2011 · With this, you can really rule out parameters you don't need in where clause. 1. SO let's say the first load is 'All'. Note: the use of (1=1 or :bindvar is null) when the bind variable is null was suggested in a comment by Michal Pravda, as it allows the optimizer to eliminate the clause. start_date = NVL (p_start_date, p. Here is my current WHERE clause. attch_type, typ. Nov 16, 2021 · I have a stored procedure which accepts 3 parameters, can anyone advise what's the most efficient way to conditionally add to the where clause if a parameter is not null? currently I have: where ([LoggedIn] >= @dateFrom and [LoggedIn] <= @dateTo) I would like to add to this if the parameter @email is not null, so conditionally doing the following Jul 2, 2017 · Use an IF statement. But only one of them works. SQL Query in Oracle where Oct 23, 2020 · And I want to add the WHERE condition subResult = :parameter. business_unit = (CASE WHEN source_flag = SOURCE_FUNCTION THEN 'production' WHEN source_flag = SOURCE_USER THEN 'users' ELSE null END) AND t. start_date ELSE Aug 4, 2024 · We can use the CASE statement to perform conditional logic within a WHERE clause. Simple, safe, clean but slow solution using DELETE. Or with this trick: The problem is that Oracle SQL does not have the boolean data type, so you cannot have columns of type boolean, pass boolean parameters to a query, have boolean expressions etc. CustomerID = ORD. flag) = 2 The answer to this question simply put is: Don't use BOOLEAN with Oracle-- PL/SQL is dumb and it doesn't work. sls_cont_no join marketer m on m. data_as_at_dt ) OR (v_account_id is null and bp. Within SQL SELECT, we can use the WHEN-ELSE statement instead of the traditional IF-ELSE. LatLong, w. Jun 21, 2010 · SELECT COALESCE(CurrMonth. Bind peeking enables the optimizer to use the actual bind values of the first execution when preparing an execution plan. active = 'Y' AND jmap Jan 24, 2014 · I am new to this group. first_name LIKE firstname Jan 11, 2017 · A use case has come up to pass blank values into the function for any of the IN parameters and have it select ANY value in the where clause where the parameter is blank. Named parameters and positional parameters may not be mixed in a single query. No, Oracle can't use boolean expressions as results from functions. The WHERE clause specifies a search condition for rows returned by the SELECT statement. Modified 5 years, 6 months ago. CustomerID AND CUS. [GetMailboxMessagesByStatus] @UserId UNIQUEIDENTIFIER , @MessageStatus INT AS BEGIN IF ( @MessageStatus = 4 ) BEGIN SELECT * FROM MailboxMessages WHERE m. Jun 26, 2023 · This SQL tutorial will guide you on conditionally filtering using the WHERE clause using a SQL CASE statement. I wish to have a cursor with a select statement like this: select column from table1 t1, table2 t2 where t1 Jan 17, 2020 · Hello Tom Is it possible to change the where condition (using case statement) based on certain variable? For example var T varchar2(1) exec :T := 'E'; var E number; exec :E := 7788; var N varchar2(20) exec :N := 'MILLER'; select empno, ename from emp where -- how to use case statement to vary the condition based on :T -- if :T = 'E' then the condition should be where empno = :E -- and if :T Nov 6, 2015 · I have a problem with building a conditional update statement in Oracle. The Oracle database uses a shared execution plan cache (“SQL area”) and is fully exposed to the problem described in this section. Jan 29, 2019 · I have a query in APEX, which uses a where clause condition based on a item's value in apex. If my variable is A then I need to query a specific where clause, if it is B it uses that specific where clause and same goes for C. Feb 10, 2017 · Now, I am trying to set up another AND clause for ParkID. If the CustomerType parameter is blank, then I need to include a condition CustomerType is null, oth Apr 23, 2013 · The most efficient way according to my own testing is: *Remark: only valid for NON-NULLABLE columns, as commented by Aaron. The problem with dynamic SQL, though, is that you have to hard parse every distinct version of the query which not only has the potential of taxing your CPU but has the potential to flood your shared pool with lots of non-sharable SQL statements, pushing out statements you'd like to cache, causing more hard parses and shared Aug 17, 2016 · Conditional Where clause with decode Hello there,Good Day!I have a query at hand:SELECT mf_trn_id FROM mf_transactions WHERE MF_TRN_AGENT_CD = :b1 AND MF_TRN_PAN_NO = :b2 AND MF_TRN_SCH_CD = :b3 AND MF_TRN_COMP_CD = :b4 AND MF_TRN_CD = :b5 AND MF_TRN_FOLIO = Decode(:b5, 'P', mf_trn_folio, :b7) May 28, 2024 · The CASE statement acts as a logical IF-THEN-ELSE conditional statement. If none are true (the percentage is less than 50 or null), it returns the value in the else clause which is F. from table/view where first condition always and optional second condition based on the value based on the apex variable :P222_VARIABLE_NAME I am getting the value of the parameter at the runtime using a I am trying to create a stored procedure which will return records based on input. We are trying to update the salary from Employee table based on their designation and total experience. Related. sls_cont_no = sls. On rows where ParkID IS NOT NULL, we only want to keep those rows if ParkID matches the parameter. For example, the following statement is not valid: Apr 18, 2012 · If you don't do this, the SQL statements inside your stored procedure will always use the same access plan, regardless of which input parameters are passed into the stored procedure at runtime. For example, I have a query which takes the ID of the organisation as parameter: SELECT org_name, org_addressFROM t_organisationWHERE id_org = $P{ID_ORGANISATION}[/code] Jul 15, 2014 · I am modifying an existing stored procedure in SQL server and trying to come up with a query that should take a conditional WHERE depending on whether one of the input parameters is null or has value. name, a. v_name, v_country, v_type. Id = 123) OR (@Checkbool = 0 AND A. nfy lgzo okeqkyk vvlt rzih biyjd zxuoym hle vblagv owr