Which of the following is applicable for Exadata Hybrid Columnar Compression?

  1. a. The database stores the same column for a group of rows together

  2. b. The data block does not store the rows in the row-major format

  3. c. The database stores the identical rows together with a reference for each row

  4. d. Database operations works transparently against compressed objects without the need of changing application code


Correct Option: A,B,D

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