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This tip covers the expectation that Quest SQL Optimizer will always be able to improve the performance of your SQL statements. Occasionally, even when you have increased the intelligence level up to...

This tip sheds some insight on why the SQL optimization process can take hours to run and what you can do to shorten the process.   SQL Statement with Views When the SQL statement is using Views inst...

Oracle provides optimization hint that can be added to the syntax of a SQL statements to attempt to influence the execution plan that the database optimizer will use to execute the SQL statement. Ques...

When you are optimizing a complicated SQL statement, Quest SQL Optimizer is capable of generating hundred to even thousands of SQL alternatives. While theoretical this may be nice, it is not practical...

When you are executing SQL statements to find which one is the best, you need to take into consideration the factors that can skew the accuracy of the results of the testing. These factors include cac...

This tip explains the order in which the alternative SQL statements are displayed in the Tuning Lab. After the optimization process is finished, the SQL alternatives are displayed in the order of the...

This tips covers the options for terminating the SQL alternatives when they are executed in the Batch Run in the Optimize SQL module. The SQL optimization process in the Optimize SQL module generates ...

This tip covers how to consider the disk I/O when selecting the best SQL alternative. When selecting the best performing SQL statement for your application, how should disk I/O be weighed in compariso...

When you are executing SQL statements to find which one is the best, you need to take into consideration the factors that can skew the accuracy of the results of the testing. These factors include cac...

When you are executing SQL statements to find which one is the best, you need to take into consideration the factors that can skew the accuracy of the test results. These factors include caching the d...