Can we use delete with MERGE statement in Oracle?

The Merge statement was introduced in Oracle 9i and improved upon in Oracle 10g. In Oracle 9i only the INSERT and UPDATE parts were supported, in Oracle 10g DELETE was added. DELETE can only occur in the “merge_update_clause” of the above schema. This means that it must occur in the WHEN MATCHED THEN clause.

When not matched by source does it delete?

We can use WHEN NOT MATCHED BY SOURCE clause in SQL Server MERGE statement to delete the rows in the target table that does not match join condition with a source table. For example, the row with locationID =2 in the target table does not match the join condition and the row is present only in the target table.

Is DML commands are by default auto commit?

1 Answer. DML is not committed by default.

Is call a DML?

Data Manipulation Language (DML) Statements The CALL and EXPLAIN PLAN statements are supported in PL/SQL only when executed dynamically. All other DML statements are fully supported in PL/SQL.

What does delete where do in SQL MERGE?

Specify the DELETE where_clause to clean up data in a table while populating or updating it. The only rows affected by this clause are those rows in the destination table that are updated by the merge operation. The DELETE WHERE condition evaluates the updated value, not the original value that was evaluated by the UPDATE SET

What does merge _ update _ Clause do in Oracle?

The merge_update_clause specifies the new column values of the target table. Oracle performs this update if the condition of the ON clause is true. If the update clause is executed, then all update triggers defined on the target table are activated.

Can you delete rows that have not been updated by Merge?

No, you cannot delete rows that have not been updated by the merge command. Specify the DELETE where_clause to clean up data in a table while populating or updating it. The only rows affected by this clause are those rows in the destination table that are updated by the merge operation.

Can you delete a row in Oracle 10g?

I have tried this in oracle 10g and, with this sqlfiddle, oracle 11g. No, you cannot delete rows that have not been updated by the merge command. Specify the DELETE where_clause to clean up data in a table while populating or updating it.