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Question

Select the sequence for how the query mechanism works?

a.

Authentication-> DDL->DML->query optimizer->output

b.

DDL->DML->query optimizer-> Authentication->output

c.

DML->query optimizer-> Authentication-> DDL-> output

d.

All of the mentioned

Answer: (a).Authentication-> DDL->DML->query optimizer->output

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Q. Select the sequence for how the query mechanism works?

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