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What is the CPU cost of doing the first SL and the cost of the JN if the index on the column bname of the

What is the CPU cost of doing the first SL and the cost of the JN if the index on the column
bname of the account table is NOT clustered?
2. What is the CPU cost of doing the first SL and the cost of the JN if the index on the column
bname of the account table is clustered?

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