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15 wrz 2008 · Simple if-else statement in SQL Server: DECLARE @val INT; SET @val = 15; IF @val < 25 PRINT 'Hi Ravi Anand'; ELSE PRINT 'By Ravi Anand.'; GO Nested If...else statement in SQL Server - DECLARE @val INT; SET @val = 15; IF @val < 25 PRINT 'Hi Ravi Anand.'; ELSE BEGIN IF @val < 50 PRINT 'what''s up?'; ELSE PRINT 'Bye Ravi Anand.'; END; GO
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 ELSE keyword introduces another Transact-SQL statement that is executed when the IF condition isn't satisfied: the Boolean expression returns FALSE .
12 wrz 2022 · Using a Boolean Function in an Argument. The most common Boolean function found in a T-SQL IF statement is the EXISTS function. When combined with a query, this function returns true when the query returns at least one row. It returns false when the query returns no rows.
24 maj 2021 · The IF…ELSE structure will execute a certain block of code if a specified condition is TRUE, and a different block of code if that condition is FALSE. Here is the basic layout and syntax of the IF…ELSE structure: IF(<condition is true>) BEGIN. <execute some code>.
The IF ELSE statement. When the condition in the IF clause evaluates to FALSE and you want to execute another statement block, you can use the ELSE clause. The following illustrates the IF ELSE statement: IF Boolean_expression.
30 lis 2019 · Instrukcję IF THEN ELSE w SQL Server możemy używać w T-SQL m. in. w blokach anonimowych, procedurach, funkcjach, triggerach. Składnia T-SQL If Then Else wygląda następująco: --tomaszkenig.pl. IF Boolean_expression_1. {...polecenie wykonywane, gdy warunek_1 jest spełniony - ma wartość TRUE...} [ ELSE IF Boolean_expression_2 .
21 maj 2024 · Imposes conditions on the execution of a Transact-SQL statement. The Transact-SQL statement (sql_statement) following the boolean_expression is executed if the boolean_expression evaluates to TRUE. The optional ELSE keyword is an alternate Transact-SQL statement that is executed when boolean_expression evaluates to FALSE or NULL.
