can we write if else condition in sql code example

Example 1: t-sql if else

IF 1=1
	SELECT 1
ELSE
	SELECT 0
-- returns 1

-- Definition
IF Boolean_expression   
     { sql_statement | statement_block }   
[ ELSE   
     { sql_statement | statement_block } ]

Example 2: how to do an if statement in sql server

DECLARE @Course_ID INT = 4

IF (@Course_ID = 4)
Select * from Guru99 where Tutorial_ID = 4
ELSE
Select * from Guru99 where Tutorial_ID != 4

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Sql Example

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