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

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


Applies To: SQL Server 2014, SQL Server 2016 Preview

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).

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database, Azure SQL Data Warehouse Public Preview.

Topic link icon Transact-SQL Syntax Conventions

expression < > expression


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.

USE AdventureWorks2012; 
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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