Question: 1 . If indexes help speed up access, why not index every column? After explaining this, are there any circumstances where indexing all of the

1. If indexes help speed up access, why not index every column? After explaining this, are there any circumstances where indexing all of the columns might be appropriate?

2. Your co-worker has a query that has unacceptable response time. What tool might you use to diagnose where the time is being spent and how you might go about improving the performance?

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