ASA SQL Reference
System Tables
| Column name | Column type | Column constraint | Table constraints |
|---|---|---|---|
| domain_id | SMALLINT | NOT NULL | Primary key |
| domain_name | CHAR(128) | NOT NULL | |
| type_id | SMALLINT | NOT NULL | |
| precision | SMALLINT |
Each of the predefined data types (sometimes called domains) is assigned a unique number. The SYSDOMAIN table is provided for informational purposes, to show the association between these numbers and the appropriate data types. This table is never changed.
domain_id The unique number assigned to each data type. These numbers cannot be changed.
domain_name A string containing the data type normally found in the CREATE TABLE command, such as char or integer.
type_id The ODBC data type. This corresponds to "data_type" in the Transact-SQL-compatibility dbo.SYSTYPES table.
precision The number of significant digits that can be stored using this data type. The column value is NULL for non-numeric data types.