Deletes the most current fetched row from an updatable cursor invocation.
ANSI Compliance
ANSI/ISO SQL:2011-compliant.
This form is not valid in Teradata session mode.
Required Privileges
You must have the DELETE privilege on the table.
Use care when granting the privilege to delete data through a view. Data in fields that might not be known to the user is also deleted when a row is deleted through a view.
Invocation
Executable.
Stored procedures and embedded SQL.
Syntax
{ DELETE | DEL } FROM table_name WHERE CURRENT OF cursor_name
Syntax Elements
- table_name
- The name of the table in which the row to be deleted is found.
- cursor_name
- The name of the cursor to be used to position to the row to be deleted.
Usage Notes
- The preprocessor TRANSACT or -tr option must be set to ANSI.
- The WHERE CURRENT OF clause enables a DELETE statement to act on a row currently pointed to by the cursor named in WHERE CURRENT OF cursor_name.
- Restrictions on Using WHERE CURRENT OF
- cursor_name must be a valid updatable cursor.
- Multiple updates of the current row of cursor or updates followed by a delete of the current row of cursor are allowed.
- table_name must be the same table that you SELECT in the updatable cursor request.
- You must position the referenced cursor at a valid row via the FETCH statement.
Example: Deleting a Row with a Cursor
In this example, the name of the cursor being used to delete from the table is X01.
EXEC SQL DELETE FROM customer WHERE CURRENT OF x01;
Related Information
- Teradata Vantage™ - SQL Data Manipulation Language, B035-1146