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An integer data type that can take a value of 1, 0, or NULL.
Remarks
The Microsoft SQL Server 2005 Database Engine optimizes storage of bit columns. If there are 8 or less bit columns in a table, the columns are stored as 1 byte. If there are from 9 up to 16 bit columns, the columns are stored as 2 bytes, and so on.
The string values TRUE and FALSE can be converted to bit values: TRUE is converted to 1 and FALSE is converted to 0.
See Also
Reference
ALTER TABLE (Transact-SQL)
CAST and CONVERT (Transact-SQL)
CREATE TABLE (Transact-SQL)
Data Types (Transact-SQL)
DECLARE @local\_variable (Transact-SQL)
DELETE (Transact-SQL)
INSERT (Transact-SQL)
SET @local\_variable (Transact-SQL)
sys.syscolumns (Transact-SQL)
UPDATE (Transact-SQL)
Other Resources
Data Type Conversion (Database Engine)