The following numeric data types are available:
Standard data type | DBMS-specific physical data type | Content | Length |
Integer | int / INTEGER | 32-bit integer | — |
Short Integer | smallint / SMALLINT | 16-bit integer | — |
Long Integer | int / INTEGER | 32-bit integer | — |
Byte | tinyint / SMALLINT | 256 values | — |
Number | numeric / NUMBER | Numbers with a fixed decimal point | Fixed |
Decimal | decimal / NUMBER | Numbers with a fixed decimal point | Fixed |
Float | float / FLOAT | 32-bit floating point numbers | Fixed |
Short Float | real / FLOAT | Less than 32-bit point decimal number | — |
Long Float | double precision / BINARY DOUBLE | 64-bit floating point numbers | — |
Money | money / NUMBER | Numbers with a fixed decimal point | Fixed |
Serial | numeric / NUMBER | Automatically incremented numbers | Fixed |
Boolean | bit / SMALLINT | Two opposing values (true/false; yes/no; 1/0) | — |
Character data types
The following character data types are available:
Standard data type | DBMS-specific physical data type | Content | Length |
Characters | char / CHAR | Character strings | Fixed |
Variable Characters | varchar / VARCHAR2 | Character strings | Maximum |
Long Characters | varchar / CLOB | Character strings | Maximum |
Long Var Characters | text / CLOB | Character strings | Maximum |
Text | text / CLOB | Character strings | Maximum |
Multibyte | nchar / NCHAR | Multibyte character strings | Fixed |
Variable Multibyte | nvarchar / NVARCHAR2 | Multibyte character strings | Maximum |
Time data types
The following time data types are available:
Standard data type | DBMS-specific physical data type | Content | Length |
Date | date / DATE | Day, month, year | — |
Time | time / DATE | Hour, minute, and second | — |
Date & Time | datetime / DATE | Date and time | — |
Timestamp | timestamp / TIMESTAMP | System date and time | — |
Other data types
The following other data types are available:
Standard data type | DBMS-specific physical data type | Content | Length |
Binary | binary / RAW | Binary strings | Maximum |
Long Binary | image / BLOB | Binary strings | Maximum |
Bitmap | image / BLOB | Images in bitmap format (BMP) | Maximum |
Image | image / BLOB | Images | Maximum |
OLE | image / BLOB | OLE links | Maximum |
Other | — | User-defined data type | — |
Undefined | undefined | Undefined. Replaced by the default data type at generation. | — |