Solve ORA-00604: error occurred at recursive sql level 1

The “ORA-00604: error occurred at recursive SQL level 1” error occurs in the Oracle database when there is a recursive SQL statement that has encountered an error. Recursive SQL statements are SQL statements that are generated by Oracle internally to manage the database’s internal activities, such as managing locks and space allocation.

Here are some possible reasons for this error and ways to solve it:

• Insufficient privileges: If the user running the SQL statement does not have sufficient privileges to execute the internal recursive SQL statement, then the “ORA-00604” error can occur. To solve this error, the user needs to be granted the necessary privileges to execute the SQL statement. For example, if the error occurs when creating a trigger, the user may need the “CREATE TRIGGER” privilege.
• Memory allocation issues: The error can also occur if the database does not have enough memory to execute the recursive SQL statement. To solve this error, you can try to increase the memory allocated to the database or reduce the memory usage by closing any unnecessary database sessions or reducing the size of data being processed.
• Corrupt data: If the data being processed by the recursive SQL statement is corrupt or inconsistent, the error can occur. To solve this error, you need to identify and fix the corrupted data.

Here is an example code that generates the “ORA-00604” error:

CREATE OR REPLACE TRIGGER myTrigger
BEFORE INSERT ON myTable
FOR EACH ROW
BEGIN
    INSERT INTO myTable (myColumn)
    VALUES (:NEW.myColumn);
END;
/

In the above code, the trigger is defined to insert a new row into the same table it is defined on. This will create a recursive SQL statement that will cause the “ORA-00604” error.

To fix this error, we need to modify the trigger to avoid the recursive SQL statement:

CREATE OR REPLACE TRIGGER myTrigger
BEFORE INSERT ON myTable
FOR EACH ROW
BEGIN
    -- Use a different table to insert the row
    INSERT INTO myOtherTable (myColumn)
    VALUES (:NEW.myColumn);
END;
/

In the corrected code, we modified the trigger to insert the new row into a different table, which will avoid the recursive SQL statement.

In summary, the “ORA-00604: error occurred at recursive SQL level 1” error can occur due to insufficient privileges, memory allocation issues, or corrupt data. To solve the error, you need to identify the cause and take appropriate actions, such as granting necessary privileges, allocating more memory, or fixing corrupt data.