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How do you handle ORA exception?
Every Oracle error has a number, but exceptions must be handled by name. So, PL/SQL predefines some common Oracle errors as exceptions. For example, PL/SQL raises the predefined exception NO_DATA_FOUND if a SELECT INTO statement returns no rows. To handle other Oracle errors, you can use the OTHERS handler.
How do I handle ORA 01403 without data found?
Action: Terminate processing for the SELECT statement. Many people experience ORA-01403 in association with the SELECT INTO clause. SELECT INTO clauses are standard SQL queries which pull a row or set of columns from a database, and put the retrieved data into variables which have been predefined.
How do you handle exceptions in Oracle?
To handle unexpected Oracle errors, you can use the OTHERS handler. Within this handler, you can call the functions SQLCODE and SQLERRM to return the Oracle error code and message text. Once you know the error code, you can use it with pragma EXCEPTION_INIT and write a handler specifically for that error.
How do you end an exception in PL SQL?
DECLARE exception_name EXCEPTION; BEGIN IF condition THEN RAISE exception_name; END IF; EXCEPTION WHEN exception_name THEN statement; END; You can use the above syntax in raising the Oracle standard exception or any user-defined exception.
How do I fix my ORA 01403?
To fix this, re-create tables from the initial controlling database. The good news is that the ORA-01403 error is highly preventable. By creating the proper exceptions, the program should now operate free of the error and remain that way until edited again.
How are exceptions handled in a subprogram in Oracle?
Only one exception at a time can be active in the exception-handling part of a block or subprogram. So, an exception raised inside a handler propagates immediately to the enclosing block, which is searched to find a handler for the newly raised exception. From there on, the exception propagates normally.
How is exception handling handled in Oracle PL / SQL?
The exception handling part present after WHEN OTHERS will never get executed as the control will exit from the block after executing the WHEN OTHERS. There are two types of Exceptions in Pl/SQL. Oracle has predefined some common exception. These exceptions have a unique exception name and error number.
Can you create your own exceptions in Oracle?
These exceptions are already defined in the ‘STANDARD’ package in Oracle. In code, we can directly use these predefined exception name to handle them. When ‘SELECT’ statement that contains INTO clause fetches no rows. In Oracle, other than the above-predefined exceptions, the programmer can create their own exception and handle them.
Why is no _ data _ found ora-01403 an exception in Oracle?
Only Oracle treats a SELECT INTO like this. CREATE OR REPLACE PROCEDURE no_data_proc IS dummy dual.dummy%TYPE; BEGIN BEGIN SELECT dummy INTO dummy FROM dual WHERE dummy = ‘Y’; EXCEPTION WHEN no_data_found THEN dbms_output.put_line (‘Why is this needed?’); END; END no_data_proc; Why? In my opinion you don’t need this exception really.