Sql where clause with if condition
WebThe IF () function returns a value if a condition is TRUE, or another value if a condition is FALSE. Syntax IF ( condition, value_if_true, value_if_false) Parameter Values Technical Details Works in: From MySQL 4.0 More Examples Example Return 5 if the condition is TRUE, or 10 if the condition is FALSE: SELECT IF(500<1000, 5, 10); Try it Yourself » WebIf works like this: IF (, , ) So as an example, the first query below would return 1 and the second 0: SELECT IF ( 'a' = 'a', 1, 0 ); SELECT IF ( 'a' = 'b', 1, 0 ); Using IF in a WHERE query The following example shows how to use IF in a WHERE query. SELECT ... WHERE ...
Sql where clause with if condition
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WebYou can combine any two predicates with AND and OR. In addition, you can use the NOT keyword to specify that the search condition that you want is the negated value of the specified search condition. A WHERE clause can have as many predicates as you want. AND says that, for a row to qualify, the row must satisfy both predicates of the search ... WebFeb 15, 2024 · You can use IFNULL for MYSQL, if the value is null it will return the second parameter. Select * from table1 where color = IFNULL ($colorFilter,color) and size = IFNULL ($sizeFilter,size) Change IFNULL to ISNULL for MS access and SQL server, NVL for oracle Share Improve this answer Follow answered Feb 15, 2024 at 12:35 Neenem 55 7 Brilliant.
WebApr 12, 2024 · The WHERE clause provides an extremely flexible set of operators that enable you to select rows based on a number of different conditions. Likewise, the HAVING clause enables you to select... WebAug 8, 2008 · I was wondering what the syntax what be to append an IF statement in the where clause for example SELECT * FROM employee WHERE IF @employee = 'Some …
WebMay 10, 2024 · As the WHERE clause requires true conditions, you’ll get zero rows with a condition like the following: The solution is to use the IS NULL or IS NOT NULL operators. Here’s how you can retrieve all records that have NULL in the commision_2024 column: SELECT * FROM salespeople WHERE commission_2024 IS NULL; WebNov 1, 2011 · declare @userid int = -1 if (@userid = -1) BEGIN SELECT * FROM mytable where Completion_Date>= '11/01/2011' and Completion_Date<= '12/11/2012' and userid in (select distinct userID from mytable) end ELSE BEGIN SELECT * FROM mytable where Completion_Date>= '11/01/2011' and Completion_Date<= '12/11/2012' and userid = …
WebDec 1, 2024 · In this brief article we will explore the CASE statement which is equivalent to an IF-ELSE statement. The CASE statement checks each time conditions and returns a value when the condition is satisfied. It returns simply the specified value after the THEN clause. The CASE statement returns NULL if there isn't an ELSE clause and none of the ...
WebDec 1, 2024 · In this brief article we will explore the CASE statement which is equivalent to an IF-ELSE statement. The CASE statement checks each time conditions and returns a … shoe aid basfordWebThe WHERE clause is used to filter records. It is used to extract only those records that fulfill a specified condition. WHERE Syntax SELECT column1, column2, ... FROM table_name … shoe aidWebcreate procedure getRecords @parm1 varchar (10) = null, @parm2 varchar (10) = null, @parm3 varchar (10) = null as declare @whereClause varchar (500) set @whereClause = ' where 1 = 1 ' if (@parm1 is null and @parm2 is null and @parm3 is null) select * from dummyTable else begin if (@parm1 is not null) set @whereClause += 'and parm1 = ' + '' + … shoe aideWebApr 12, 2024 · Here, the WHERE clause is used to filter out a select list containing the ‘FirstName’, ‘LastName’, ‘Phone’, and ‘CompanyName’ columns from the rows that contain … shoe aids to help put on shoesWebJan 23, 2024 · 7 Answers Sorted by: 6 General approach is to rewrite the query with a boolean expression that evaluates to what you need based on flag's value: SELECT * FROM TABLE A WHERE A.IS_ADMIN = 1 AND ( -- Common part ... (@Flag=1 AND BUNDLE_ID IN (3,5)) -- IF ... OR (@Flag<>1 AND BUNDLE_ID IN (1,2)) -- ELSE ... ) Share Improve this … shoe aid charityWebJul 25, 2013 · The COALESCE function in SQL returns the first non-NULL expression among its arguments. Here for example if the @param1 is equal to null the function will return col1 which will lead to col1=col1 in the where statement which is like 1=1 meaning the condition will always be true. Share Improve this answer Follow answered Dec 14, 2016 at 11:38 … shoe air forceWebFeb 28, 2024 · The Transact-SQL statement that follows an IF keyword and its condition is executed if the condition is satisfied: the Boolean expression returns TRUE. The optional … shoealance alihan