| SQL adaptation guide For SQL SERVER 2005, 2008, 2012 / Data dictionary | |
| Informix data types | SQL SERVER data types (<2008) | SQL SERVER data types (>=2008) |
|---|---|---|
| CHAR(n) | CHAR(n) (limit = 8000b!) | CHAR(n) (limit = 8000b!) |
| VARCHAR(n[,m]) | VARCHAR(n) (limit = 8000b!) | VARCHAR(n) (limit = 8000b!) |
| LVARCHAR(n) | VARCHAR(n) (limit = 8000b!) | VARCHAR(n) (limit = 8000b!) |
| NCHAR(n) | NCHAR(n) (UNICODE, limit = 4000c!) | NCHAR(n) (UNICODE, limit = 4000c!) |
| NVARCHAR(n[,m]) | NVARCHAR(n)(UNICODE, limit = 4000c!) | NVARCHAR(n) (UNICODE, limit = 4000c!) |
| BOOLEAN | BIT | BIT |
| SMALLINT | SMALLINT | SMALLINT |
| INT / INTEGER | INTEGER | INTEGER |
| BIGINT | BIGINT | BIGINT |
| INT8 | BIGINT | BIGINT |
| SERIAL[(start)] | INTEGER (see notes) | INTEGER (see notes) |
| BIGSERIAL[(start)] | BIGINT (see notes) | BIGINT (see notes) |
| SERIAL8[(start)] | BIGINT (see notes) | BIGINT (see notes) |
| DOUBLE PRECISION / FLOAT[(n)] | FLOAT(n) | FLOAT(n) |
| REAL / SMALLFLOAT | REAL | REAL |
| NUMERIC / DEC / DECIMAL(p,s) | DECIMAL(p,s) | DECIMAL(p,s) |
| NUMERIC / DEC / DECIMAL(p) with p<=19 | DECIMAL(2*p,p) | DECIMAL(2*p,p) |
| NUMERIC / DEC / DECIMAL(p) with p>19 | N/A | N/A |
| NUMERIC / DEC / DECIMAL | DECIMAL(32,16) | DECIMAL(32,16) |
| MONEY(p,s) | DECIMAL(p,s) | DECIMAL(p,s) |
| MONEY(p) | DECIMAL(p,2) | DECIMAL(p,2) |
| MONEY | DECIMAL(16,2) | DECIMAL(16,2) |
| DATE | DATETIME | DATE |
| DATETIME HOUR TO MINUTE | DATETIME | TIME(0) |
| DATETIME HOUR TO FRACTION(n) | DATETIME | TIME(n) |
| DATETIME YEAR TO SECOND | DATETIME | DATETIME2(0) |
| DATETIME q1 TO q2 (different from above) | DATETIME | DATETIME2(n) |
| INTERVAL q1 TO q2 | CHAR(50) | CHAR(50) |
| TEXT | VARCHAR(MAX) |
VARCHAR(MAX) |
| BYTE | VARBINARY(MAX) |
VARBINARY(MAX) |