Data type conversion table: Informix to SQL Server
Informix® data types | Microsoft™ SQL Server data types |
---|---|
CHAR(n) |
CHAR(n) if SBCS, NCHAR(n) if
UTF-8 |
VARCHAR(n[,m]) |
VARCHAR(n) if SBCS,
NVARCHAR(n) if UTF-8 |
LVARCHAR(n) |
VARCHAR(n) if SBCS,
NVARCHAR(n) if UTF-8 |
NCHAR(n) |
NCHAR(n) (UNICODE, max is 4000 chars) |
NVARCHAR(n[,m]) |
NVARCHAR(n) (UNICODE, max is 4000
chars) |
BOOLEAN |
BIT |
SMALLINT |
SMALLINT |
INTEGER |
INTEGER |
BIGINT |
BIGINT |
INT8 |
BIGINT |
SERIAL[(start)] |
INTEGER (see note 1) |
BIGSERIAL[(start)] |
BIGINT (see note 1) |
SERIAL8[(start)] |
BIGINT (see note 1) |
DOUBLE PRECISION / FLOAT[(n)] |
FLOAT(n) |
REAL / SMALLFLOAT |
REAL |
DECIMAL(p,s) |
DECIMAL(p,s) |
DECIMAL(p) with p<=19 |
DECIMAL(2*p,p) |
DECIMAL(p) with p>19 |
N/A |
DECIMAL |
DECIMAL(32,16) |
MONEY(p,s) |
DECIMAL(p,s) |
MONEY(p) |
DECIMAL(p,2) |
MONEY |
DECIMAL(16,2) |
DATE |
DATE |
DATETIME HOUR TO MINUTE |
TIME(0) |
DATETIME HOUR TO SECOND |
TIME(0) |
DATETIME HOUR TO FRACTION(n) |
TIME(n) |
DATETIME YEAR TO MONTH |
DATETIME2(0) |
DATETIME YEAR TO DAY |
DATETIME2(0) |
DATETIME YEAR TO HOUR |
DATETIME2(0) |
DATETIME YEAR TO MINUTE |
DATETIME2(0) |
DATETIME YEAR TO SECOND |
DATETIME2(0) |
DATETIME YEAR TO FRACTION(n) |
DATETIME2(n) |
INTERVAL q1 TO q2 |
CHAR(50) |
TEXT |
VARCHAR(MAX) |
BYTE |
VARBINARY(MAX) |
Notes:
- For more details about serial emulation, see SERIAL and BIGSERIAL data types.