< (Less Than) (Transact-SQL)

< (Less Than) (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 has a value lower than 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
      expression
      <
      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 HumanResources.Department table that have a value in DepartmentID that is less than the value 3.

-- Uses AdventureWorks

SELECT DepartmentID, Name
FROM HumanResources.Department
WHERE DepartmentID < 3
ORDER BY DepartmentID;

Here is the result set.

DepartmentID Name
------------ --------------------------------------------------
1            Engineering
2            Tool Design

(2 row(s) affected)

DECLARE @a int = 45, @b int = 40;
SELECT IIF ( @a < @b, 'TRUE', 'FALSE' ) AS Result;

Here is the result set.

Result
------
FALSE

(1 row(s) affected)

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