SQL Server connector reference

This page contains reference material for the SQL Server connector in Databricks Lakeflow Connect.

Automatic data transformations

Databricks automatically transforms the following SQL Server data types to Delta-compatible data types:

SQL Server type	Delta type
BIT	BOOLEAN
TINYINT	SMALLINT
SMALLINT	SMALLINT
INT	INT
BIGINT	BIGINT
DECIMAL(p,s)	DECIMAL(p,s)
NUMERIC(p,s)	DECIMAL(p,s)
SMALLMONEY	DECIMAL(10,4)
MONEY	DECIMAL(19,4)
FLOAT	DOUBLE
REAL	FLOAT
DATE	DATE
TIME	STRING
SMALLDATETIME	TIMESTAMP
DATETIME	TIMESTAMP
DATETIME2	TIMESTAMP
DATETIMEOFFSET	TIMESTAMP
CHAR	STRING
VARCHAR	STRING
VARCHAR(MAX)	STRING
NCHAR	STRING
NVARCHAR	STRING
NVARCHAR(MAX)	STRING
TEXT	STRING
NTEXT	STRING
XML	STRING
SQL_VARIANT	STRING
HIERARCHYID	STRING
UNIQUEIDENTIFIER	STRING
BINARY	BINARY
VARBINARY	BINARY
VARBINARY(MAX)	BINARY
IMAGE	BINARY
GEOGRAPHY	BINARY
GEOMETRY	BINARY
ROWVERSION	BINARY