Finishing School - Crossword- SQL (RDBMS)

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Across
  1. 2. value not available in a particular column cell.
  2. 6. selecting the columns of a table in a query
  3. 8. Data Control language command
  4. 9. insert and update belong to this type of sql command.
  5. 10. DDL command used to add a new column
Down
  1. 1. The standard language of all databases
  2. 3. A pattern matching operator in sql
  3. 4. A clause used to filter out the result of a group by operation
  4. 5. A ddl command used to delete all the records
  5. 7. completes a transaction