AND (Transact-SQL)

AND (Transact-SQL)

 

THIS TOPIC APPLIES TO: yesSQL Server (starting with 2008)yesAzure SQL DatabaseyesAzure SQL Data Warehouse yesParallel Data Warehouse

Combines two Boolean expressions and returns TRUE when both expressions are TRUE. When more than one logical operator is used in a statement, the AND operators are evaluated first. You can change the order of evaluation by using parentheses.

Topic link icon Transact-SQL Syntax Conventions

  
boolean_expression AND boolean_expression  

-- Azure SQL Data Warehouse and Parallel Data Warehouse  
      boolean_expression AND boolean_expression  

boolean_expression
Is any valid expression that returns a Boolean value: TRUE, FALSE, or UNKNOWN.

Boolean

Returns TRUE when both expressions are TRUE.

The following chart shows the outcomes when you compare TRUE and FALSE values by using the AND operator.

TRUEFALSEUNKNOWN
TRUETRUEFALSEUNKNOWN
FALSEFALSEFALSEFALSE
UNKNOWNUNKNOWNFALSEUNKNOWN

A. Using the AND operator

The following example selects information about employees who have both the title of Marketing Assistant and more than 41 vacation hours available.

-- Uses AdventureWorks  
  
SELECT  BusinessEntityID, LoginID, JobTitle, VacationHours   
FROM HumanResources.Employee  
WHERE JobTitle = 'Marketing Assistant'  
AND VacationHours > 41 ;  

B. Using the AND operator in an IF statement

The following examples show how to use AND in an IF statement. In the first statement, both 1 = 1 and 2 = 2 are true; therefore, the result is true. In the second example, the argument 2 = 17 is false; therefore, the result is false.

IF 1 = 1 AND 2 = 2  
BEGIN  
   PRINT 'First Example is TRUE'  
END  
ELSE PRINT 'First Example is FALSE';  
GO  
  
IF 1 = 1 AND 2 = 17  
BEGIN  
   PRINT 'Second Example is TRUE'  
END  
ELSE PRINT 'Second Example is FALSE' ;  
GO  

Built-in Functions (Transact-SQL)
Operators (Transact-SQL)
SELECT (Transact-SQL)
WHERE (Transact-SQL)

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