Pl Sql Sql Error Message
Example 11-6 Anonymous Block Handles ZERO_DIVIDE DECLARE stock_price NUMBER := 9.73; net_earnings NUMBER := 0; pe_ratio NUMBER; BEGIN pe_ratio := stock_price / net_earnings; -- raises ZERO_DIVIDE exception DBMS_OUTPUT.PUT_LINE('Price/earnings ratio = ' A specific exception handler is more efficient than an OTHERS exception handler, because the latter must invoke a function to determine which exception it is handling. Refer to "Warnings and Errors" in Oracle TimesTen In-Memory Database Error Messages and SNMP Traps for information about specific TimesTen error messages. Execution of the handler is complete, so the sub-block terminates, and execution continues with the INSERT statement. this content
EXCEPTION WHEN deadlock_detected THEN ... You cannot return to the current block from an exception handler. The error_code is an integer in the range -20000..-20999 and the message is a character string of at most 2048 bytes. That way, you can report errors to your application and avoid returning unhandled exceptions. Go Here
When you see an error stack, or sequence of error messages, the one on top is the one that you can trap and handle. COLLECTION_IS_NULL ORA-06531 -6531 Program attempted to apply collection methods other than EXISTS to an uninitialized nested table or varray, or program attempted to assign values to the elements of an uninitialized You can also treat particular messages as errors instead of warnings.
If you exit a subprogram successfully, PL/SQL assigns values to OUT parameters. PL/SQL declares predefined exceptions in the STANDARD package. DUP_VAL_ON_INDEX 00001 -1 A program attempts to store duplicate values in a column that is constrained by a unique index. Catching Unhandled Exceptions Remember, if it cannot find a handler for a raised exception, PL/SQL returns an unhandled exception error to the host environment, which determines the outcome.
The optional OTHERS handler catches all exceptions that the block does not name specifically. WHEN OTHERS THEN -- optional handler sequence_of_statements3 END; To catch raised exceptions, you write exception handlers. CURSOR_ALREADY_OPEN 06511 -6511 A program attempts to open an already open cursor. https://docs.oracle.com/cd/E11882_01/appdev.112/e25519/errors.htm Remember, no matter how severe the error is, you want to leave the database in a consistent state and avoid storing any bad data.
That is, the exception reproduces itself in successive enclosing blocks until either a block has a handler for it or there is no enclosing block. TimesTen implicitly raises the error and you can use an exception handler to catch the error. User-defined error Error defined and raised by the application These must be declared in the declarative section. ACCESS_INTO_NULL 06530 -6530 A program attempts to assign values to the attributes of an uninitialized object CASE_NOT_FOUND 06592 -6592 None of the choices in the WHEN clauses of a CASE statement
For example, you might define an exception named insufficient_funds to flag overdrawn bank accounts. It should be FALSE at other levels. */ PROCEDURE HandleAll(p_Top BOOLEAN); /* Prints the error and call stacks (using DBMS_OUTPUT) for the given module and sequence number. */ PROCEDURE PrintStacks(p_Module IN For example, the following declaration raises an exception because the constant credit_limit cannot store numbers larger than 999: Example 10-10 Raising an Exception in a Declaration DECLARE credit_limit CONSTANT NUMBER(3) := If ex_name_1 was raised, then statements_1 run.
Revising salary from 20000 to 10000. news Carefully consider whether each exception handler should commit the transaction, roll it back, or let it continue. However, if the statement raises an unhandled exception, the host environment determines what is rolled back. Then I reran everything just as in case3, except that: the stored procedure had NO error trap but the unnamed block that calls it DOES.
PROGRAM_ERROR ORA-06501 Internal PL/SQL error. When I select everything from the table, it gets that single row with a1 = 1. Just add an exception handler to your PL/SQL block. have a peek at these guys If a stored subprogram exits with an unhandled exception, PL/SQL does not roll back database changes made by the subprogram.
WHEN OTHERS THEN ROLLBACK; END; Because the block in which exception past_due was declared has no handler for it, the exception propagates to the enclosing block. asked 4 years ago viewed 20168 times active 4 years ago Related 8Oracle stored procedure with parameters for IN clause5XML Return from an Oracle Stored Procedure0How can fill a variable of To use TimesTen-specific SQL from PL/SQL, execute the SQL statements using the EXECUTE IMMEDIATE statement.
Retrieving the Error Code and Error Message: SQLCODE and SQLERRM In an exception handler, you can use the built-in functions SQLCODE and SQLERRM to find out which error occurred and to
Passing a positive number to SQLERRM always returns the message user-defined exception unless you pass +100, in which case SQLERRM returns the message no data found. For example, if your SELECT statement returns multiple rows, TimesTen returns an error (exception) at runtime. Make sure you pass negative error numbers to SQLERRM. For a workaround, see "Defining Your Own Error Messages: Procedure RAISE_APPLICATION_ERROR".
Example 11-18 Exception Raised in Exception Handler is Handled by Invoker CREATE PROCEDURE print_reciprocal (n NUMBER) AUTHID DEFINER IS BEGIN DBMS_OUTPUT.PUT_LINE(1/n); EXCEPTION WHEN ZERO_DIVIDE THEN DBMS_OUTPUT.PUT_LINE('Error:'); DBMS_OUTPUT.PUT_LINE(1/n || ' is undefined'); Next, the example enables all warnings for the session by invoking DBMS_WARNING.set_warning_setting_string and displays the value of PLSQL_WARNINGS by invoking DBMS_WARNING.get_warning_setting_string. The RAISE statement is used to explicitly raise an exception and display an error message, returned by the SQLERRM built-in function, and an error code, returned by the SQLCODE built-in function. check my blog Exceptions cannot propagate across remote procedure calls done through database links.
If you redeclare a global exception in a sub-block, the local declaration prevails. LOGIN_DENIED Your program attempts to log on to Oracle with an invalid username and/or password. Everything got rolled back. In Example 11-11, the handling of the exception starts in the inner block and finishes in the outer block.
When Invalid Cursor Exception Demo CREATE OR REPLACE PROCEDURE invcur_exception IS CURSOR x_cur is SELECT * FROM all_tables; x_rec x_cur%rowtype; BEGIN LOOP -- note the cursor was not opened stmt := 2; -- designates 2nd SELECT statement SELECT ... You cannot use SQLERRM directly in a SQL statement. To handle unexpected Oracle errors, you can use the OTHERS handler.
However, other user-defined exceptions must be raised explicitly by RAISE statements. If the optional third parameter is TRUE, the error is placed on the stack of previous errors. After the exception handler runs, control transfers to the next statement of the outer block. You declare an exception by introducing its name, followed by the keyword EXCEPTION.
To handle raised exceptions, you write separate routines called exception handlers. The keyword All is a shorthand way to refer to all warning messages. In Example 10-13, the INSERT statement might raise an exception because of a duplicate value in a unique column. Retrying a Transaction After an exception is raised, rather than abandon your transaction, you might want to retry it.
To use their values in a SQL statement, assign them to local variables first, as in Example 11-22. Such action, for example, might consist of a rollback to the beginning of the transaction.