CROSSWORD PUZZLE-SET INDUCTION

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Across
  1. 2. keyword used for a comparison on a list of data
  2. 4. used to modify the data in a relation
  3. 6. is the keyword in UPDATE query
  4. 7. query to input data in a relation
Down
  1. 1. is the clause used for conditional check
  2. 3. is the empty data
  3. 5. query helps to drop the data in the table
  4. 7. keyword helps to search for a NULL value