sql query troubleshooting

Leave the default select option on the Initial Options page and click “Continue”. In case of the SQL profile, if you hit “Implement”, you will implement it immediately without any additional prompts. CONFIGURATION. The important columns include the cost, cardinality, cpu_cost, io_cost, and temp_space required for the object. …where mySchema is the name of the schema you want to examine.

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I have two bachelor’s degrees, the first being business administration and the second in management information systems with a specialty in business intelligence. The script plan.sql provides a wealth of information which help identifies column that would benefit from an index. This can be indexed efficiently to gain access to the minority rows. These statistics are used by the query optimizer to choose the best execution plan for each SQL statement.

Sometimes the CBO can make decisions that seem incorrect — this may be as a result of stale or inaccurate statistics. Either way, you will eventually get onto the Schedule Advisor page, which is straight forward.

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