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What is the meaning of cost, card, Bytes?

Cost is basically unit of work or resource used involved memory, I/O
and CPU to execute the query.

Card( or Base cardinality) - is the number of rows in a base table captured by running statistics on the table. If u have incorrect statistics u will be having problem here.

Bytes - represents number of bytes accessed by the query.

Asked by: Interview Candidate | Asked on: Jul 9th, 2005

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