ORA-13717 - SQL

ORA-13717 is an error message that is related to SQL tuning in Oracle. It usually occurs when the automatic SQL tuning advisor is unable to create a SQL profile for a specific SQL statement.

The SQL profile is a set of statistics and hints that the optimizer can use to improve the execution plan of the SQL statement. This error can occur for several reasons, such as insufficient privileges, insufficient resources or an invalid SQL statement.

Causes of ORA-13717 Error

There are several possible causes that can result in the occurrence of ORA-13717 Error in SQL tuning. Some of those causes are mentioned below:

• Insufficient privileges to create a SQL profile
• Insufficient resources to create a SQL profile
• Invalid SQL statement
• The SQL statement has already been tuned
• The optimizer cannot generate a better execution plan

Solutions

There are several ways to resolve the ORA-13717 Error in SQL tuning. The most common solutions are mentioned below:

1. Increase resources: If the error is caused by insufficient resources, you can allocate more resources for SQL tuning. This can be done by increasing the memory allotted to the SQL tuning process.

2. Check privileges: If the error is caused by insufficient privileges, ensure that the user who is executing the SQL statement has the required privileges to create a SQL profile.

3. Verify SQL Statement: Verify the SQL statement to ensure that it is valid and that it targets the correct database object.

4. Execute SQL Tuning Advisor: Run the SQL Tuning Advisor manually on the SQL statement to generate a SQL profile.

5. Refine SQL Statement: If the SQL statement is complex, you can try to refine it by breaking it down into smaller, simpler statements that can be more easily optimized.

Conclusion

ORA-13717 Error is a common error in SQL tuning and can be caused by several factors. The root cause of the error must be identified so that an appropriate solution can be implemented. By following the above solutions, programmers can resolve the error and optimize their SQL statements for better performance.