When working with an Oracle database, you may come across an error code 00604. This type of error indicates that a current statement cannot exceed the maximum size of a SQL statement limit as set by the user. To resolve this error, there are several troubleshooting tips that you can try.
The first recommendation is to review your code to ensure that the query or PL/SQL statement does not exceed the maximum size limit. You can view the user’s limit by using the following command:
SQL> SHOW PARAMETER MAX_STRING_SIZE
It is also important to check if there are any nested statements in the code. This can be done by checking the code line-by-line to identify areas where nesting might be an issue. If there is nesting, the query should be restructured to make sure that it meets the maximum size limit.
If the current statement is too long, there are a few possible solutions. One option is to split up the query into smaller parts. This can be done by breaking up the query into separate functions. Another solution is to use bind variables instead of having to put long strings in your SQL statement. This can be done using the “:” symbol before the actual value of the variable.
If the user has reached their maximum size limit, the only way to resolve the issue is by increasing it. The command below can be used to increase the overall query size limit:
SQL> ALTER SESSION SET MAX_STRING_SIZE = {size};
For example, to increase the limit to 4000 characters, the following command can be used:
SQL> ALTER SESSION SET MAX_STRING_SIZE = 4000;
Once the user has increased the limit, it will be possible to execute the query. If the query is still not working, it is possible that there is an issue with the syntax of the query itself. In this case, the query should be reviewed to ensure that all syntax rules are being followed.
In summary, if you are getting the Oracle 00604 Error, there are a few different things that you can do in order to troubleshoot the issue. First, review the code to make sure that there is no nesting or that the query does not exceed the maximum size limit. If the current statement is too long, try breaking up the query into separate functions or using bind variables. Finally, if the user has reached their maximum size limit, the limit can be increased with the ALTER SESSION command. With these troubleshooting steps, it is possible to resolve the Oracle 00604 Error quickly and get the query working again.
