The settings for the PLSQL_WARNINGS parameter are stored along with each compiled subprogram. dbms_output.put_line(sqlerrm); 15. IF l_n_salary>10000 THEN 9. CREATE OR REPLACE TRIGGER trg_emp_detail_chk 2.
There's no public end-user interface of the throw. I want to enforce that rule through a database trigger: TRIGGER employees_minsal_tr BEFORE INSERT OR UPDATE ON employees FOR EACH ROWBEGIN IF :new.salary < 100000 THEN /* communicate error */ NULL; Example 10-16 Using the DBMS_WARNING Package to Display Warnings -- When warnings disabled, the following procedure compiles with no warnings CREATE OR REPLACE PROCEDURE unreachable_code AS x CONSTANT BOOLEAN := TRUE; When True is passed as the third parameter, this error is added to the top of the list of all other errors which has occurred in this program unit during the http://www.dba-oracle.com/t_raise_application_error.htm
Whenever a message is displayed using RAISE_APPLICATION_ERROR, all previous transactions which are not committed within the PL/SQL Block are rolled back automatically (i.e. SUBSCRIPT_BEYOND_COUNT 06533 -6533 A program references a nested table or varray element using an index number larger than the number of elements in the collection. The RAISE_APPLICATION_ERROR built-in (defined in the DBMS_STANDARD package) should be used for just a single scenario: you need to communicate an application-specific error back to the user. Example 10-15 Controlling the Display of PL/SQL Warnings -- To focus on one aspect ALTER SESSION SET PLSQL_WARNINGS='ENABLE:PERFORMANCE'; -- Recompile with extra checking ALTER PROCEDURE loc_var COMPILE PLSQL_WARNINGS='ENABLE:PERFORMANCE' REUSE SETTINGS; --
Error numbers are defined between -20,000 and -20,999. For internal exceptions, SQLCODE returns the number of the Oracle error. To reraise an exception, simply place a RAISE statement in the local handler, as shown in the following example: DECLARE out_of_balance EXCEPTION; BEGIN ... Raise Application Error In Oracle Triggers UPDATE employees SET salary=salary+1000 WHERE employee_id=100; Error report: SQL Error: ORA-20000: You are not authorized to do any modification in the weekends!!
You cannot use SQLCODE or SQLERRM directly in a SQL statement. Raise_application_error(-20001 INVALID_NUMBER 01722 -1722 n a SQL statement, the conversion of a character string into a number fails because the string does not represent a valid number. (In procedural statements, VALUE_ERROR is DECLARE huge_quantity EXCEPTION; CURSOR product_quantity is SELECT p.product_name as name, sum(o.total_units) as units FROM order_tems o, product p WHERE o.product_id = p.product_id; quantity order_tems.total_units%type; up_limit CONSTANT order_tems.total_units%type := 20; message VARCHAR2(50); https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm EXCEPTION WHEN NO_DATA_FOUND THEN ... -- Which SELECT statement caused the error?
Creating your own Oracle application errors allow you to be clearer on the intent of the action and the cause of the issue. Raise_application_error Sqlerrm CURSOR_ALREADY_OPEN 06511 -6511 A program attempts to open an already open cursor. Passing the value of 'True' adds the error to the current stack, while the default is 'False'. pe_ratio := stock_price / net_earnings; DBMS_OUTPUT.PUT_LINE('Price/earnings ratio = ' || pe_ratio); EXCEPTION -- exception handlers begin -- Only one of the WHEN blocks is executed.
It must be at least $100,000.'); END IF;END; And that, dear reader, is the motivation for using RAISE_APPLICATION_ERROR: the ability to communicate a custom, application-specific error message to your users. view publisher site IF ... Difference Between Raise And Raise_application_error In Oracle PERFORMANCE: Messages for conditions that might cause performance problems, such as passing a VARCHAR2 value to a NUMBER column in an INSERT statement. Oracle Raise Figure 10-1 Propagation Rules: Example 1 Description of the illustration lnpls009.gif Figure 10-2 Propagation Rules: Example 2 Description of the illustration lnpls010.gif Figure 10-3 Propagation Rules: Example 3 Description of the
So, you need not declare them yourself. SQLERRM returns the corresponding error message. To have the enclosing block handle the raised exception, you must remove its declaration from the sub-block or define an OTHERS handler. By associating the exception code to a name and using it as a named exception. Raise_application_error Parameters
PROGRAM_ERROR 06501 -6501 PL/SQL has an internal problem. You might turn on all warnings during development, turn off all warnings when deploying for production, or turn on some warnings when working on a particular subprogram where you are concerned permission_denied EXCEPTION; 5. This allows the application to raise application errors rather than just Oracle errors.
You can have any number of exception handlers, and each handler can associate a list of exceptions with a sequence of statements. Explain Different Looping Statement In Pl/sql Use of the OTHERS handler guarantees that no exception will go unhandled. We can provide a name to this exception and handle it in the exception section as given below.
If you exit a subprogram successfully, PL/SQL assigns values to OUT parameters. You cannot return to the current block from an exception handler. Conditional Formatting of Calculated Items in OBIEE 11g Learning Oracle Business Intelligence (OBIEE) Fun Required Reading Learn OBIEE EBS Install Guide Blog Archive ► 2016 (1) August (1) ► 2015 (2) Raise_application_error In Oracle 11g The keyword All is a shorthand way to refer to all warning messages.
IF ... Although you cannot anticipate all possible errors, you can plan to handle certain kinds of errors meaningful to your PL/SQL program. The technique is: Encase the transaction in a sub-block. For internal exceptions, SQLCODE returns the number of the Oracle error.
The second is to create exception conditions of our own, when Oracle would not throw them. For example, in the Oracle Precompilers environment, any database changes made by a failed SQL statement or PL/SQL block are rolled back. Redeclaring Predefined Exceptions Remember, PL/SQL declares predefined exceptions globally in package STANDARD, so you need not declare them yourself. CASE_NOT_FOUND None of the choices in the WHEN clauses of a CASE statement is selected, and there is no ELSE clause.
Summary of Predefined PL/SQL Exceptions An internal exception is raised automatically if your PL/SQL program violates an Oracle rule or exceeds a system-dependent limit. For example, the following GOTO statement is illegal: DECLARE pe_ratio NUMBER(3,1); BEGIN DELETE FROM stats WHERE symbol = 'XYZ'; SELECT price / NVL(earnings, 0) INTO pe_ratio FROM stocks WHERE symbol = toadworld.com/platforms/oracle/b/weblog/archive/2010/07/14/… –gmail user Feb 6 '14 at 16:30 add a comment| 4 Answers 4 active oldest votes up vote 23 down vote accepted There are two uses for RAISE_APPLICATION_ERROR. Alternatively, you can use the pragma EXCEPTION_INIT to associate exception names with Oracle error codes.
When called, raise_application_error ends the subprogram and returns a user-defined error number and message to the application. COMPILE statement, the current session setting might be used, or the original setting that was stored with the subprogram, depending on whether you include the REUSE SETTINGS clause in the statement. BEGIN 6. ORA-01422 ZERO_DIVIDE When you attempt to divide a number by zero.
The third parameter is an optional one which accepts a Boolean value. This chapter contains these topics: Overview of PL/SQL Runtime Error Handling Advantages of PL/SQL Exceptions Summary of Predefined PL/SQL Exceptions Defining Your Own PL/SQL Exceptions How PL/SQL Exceptions Are Raised How