| description | bit (Transact-SQL) | ||
|---|---|---|---|
| title | bit (Transact-SQL) | Microsoft Docs | ||
| ms.custom | |||
| ms.date | 07/23/2017 | ||
| ms.prod | sql | ||
| ms.prod_service | database-engine, sql-database, synapse-analytics, pdw | ||
| ms.reviewer | |||
| ms.technology | t-sql | ||
| ms.topic | reference | ||
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| ms.assetid | 40adfd08-a31c-49cb-a172-386bcaa6edee | ||
| author | MikeRayMSFT | ||
| ms.author | mikeray | ||
| monikerRange | >=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current |
[!INCLUDE sql-asdb-asdbmi-asa-pdw]
An integer data type that can take a value of 1, 0, or NULL.
The [!INCLUDEssDEnoversion] optimizes storage of bit columns. If there are 8 or fewer 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.
Converting to bit promotes any nonzero value to 1.
ALTER TABLE (Transact-SQL)
CAST and CONVERT (Transact-SQL)
CREATE TABLE (Transact-SQL)
Data Type Conversion (Database Engine)
Data Types (Transact-SQL)
DECLARE @local_variable (Transact-SQL)
SET @local_variable (Transact-SQL)
sys.types (Transact-SQL)