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Very Large data intensive operation on 19c.

in SQL*Plus (MOSC) 3 commentsAnswered

Hello,

I would like to explain my requirement with a scenario.

  1. Table A is a source table with some 800 million (that's right) rows.
  2. Table B is another source table with some 600 million rows!
  3. I have to join table A and table B and based on this join conditions I have to regularly refresh another table C.
  4. In each run of #3, it is expected to pull in about 450 million rows in table C.

Currently this whole process takes upto 12 hours through traditional SQL/Old school route.

Are there any new features available in 12c, 18c, or 19c to optimize and speed up above mentioned operation?

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