<> (Not Equal To) (Transact-SQL)

<> (Not Equal To) (Transact-SQL)


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

Compares two expressions (a comparison operator). When you compare nonnull expressions, the result is TRUE if the left operand is not equal to the right operand; otherwise, the result is FALSE. If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL).

Topic link icon Transact-SQL Syntax Conventions

expression < > expression
-- Azure SQL Data Warehouse and Parallel Data Warehouse


Is any valid expression. Both expressions must have implicitly convertible data types. The conversion depends on the rules of data type precedence.

The following example returns all rows in the Production.ProductCategory table that do not have value in ProductCategoryID that is equal to the value 3 or the value 2.

-- Uses AdventureWorks

SELECT ProductCategoryID, Name
FROM Production.ProductCategory
WHERE ProductCategoryID <> 3 AND ProductCategoryID <> 2; 

Here is the result set.

ProductCategoryID Name
----------------- --------------------------------------------------
1                 Bikes
4                 Accessories

(2 row(s) affected)

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