Transact-SQL Reference


SQL Server 2008 Books Online (October 2009)
< (Less Than) (Transact-SQL)

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

Syntax
expression < expression
Arguments
expression

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

Boolean

See Also

Reference

Data Types (Transact-SQL)
Operators (Transact-SQL)

Other Resources

Comparison Operators (Database Engine)

Help and Information

Getting SQL Server 2008 Assistance
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Community Content

Thomas Lee
SET ANSI_NULLS Reference?
"If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL)."

SET ANSI_NULLS is irrelevant to this article. If either or both operands are NULL the result of a less-than comparison is always UNKNOWN regardless of the SET ANSI_NULLS setting.
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