The GRANT statement can give UPDATE, SELECT, or REFERENCES permission to individual columns in a table. Each column with UPDATE, SELECT, or REFERENCES permission is recorded in one row of the SYSCOLPERM system view. The underlying system table for this view is ISYSCOLPERM.
| Column name | Data type | Description |
|---|---|---|
| table_id | UNSIGNED INT | The table number for the table containing the column. |
| grantee | UNSIGNED INT | The user number of the user ID that is given permission on the column. If the grantee is the user number for the special PUBLIC user ID, the permission is given to all user IDs. |
| grantor | UNSIGNED INT | The user number of the user ID that grants the permission. |
| column_id | UNSIGNED INT | This column number, together with the table_id, identifies the column for which permission has been granted. |
| privilege_type | SMALLINT | The number in this column indicates the kind of column permission (16=REFERENCES, 1=SELECT, or 8=UPDATE). |
| is_grantable | CHAR(1) | Indicates if the permission on the column was granted WITH GRANT OPTION. |
PRIMARY KEY (table_id, grantee, grantor, column_id, privilege_type)
FOREIGN KEY (table_id, column_id) references SYS.ISYSTABCOL (table_id, column_id)
FOREIGN KEY (grantor) references SYS.ISYSUSER (user_id)
FOREIGN KEY (grantee) references SYS.ISYSUSER (user_id)