DML DDL , DDL :
(DDL)
. :
1. CREATE: To create objects in the database
2. ALTER: Alters the structure of the database
3. DROP: Delete objects from the database
4. TRUNCATE: Remove all records from a table, including all spaces allocated for the records are removed
5. COMMENT: Add comments to the data dictionary
6. RENAME: Rename an object
(DML) . :
1. SELECT: Retrieve data from the a database
2. INSERT: Insert data into a table UPDATE - updates existing data within a table
3. DELETE: Deletes all records from a table, the space for the records remain
4. CALL: Call a PL/SQL or Java subprogram
5. EXPLAIN PLAN: Explain access path to data
6. LOCK TABLE: Control concurrency