Pl Sql Error Numbers
Reraising Current Exception with RAISE Statement In an exception handler, you can use the RAISE statement to"reraise" the exception being handled. So, your program cannot open that cursor inside the loop. Therefore, a PL/SQL block cannot handle an exception raised by a remote subprogram. As the following example shows, use of the OTHERS handler guarantees that no exception will go unhandled: EXCEPTION WHEN ...
When the exception hander raises ZERO_DIVIDE, the exception propagates immediately to the invoker. With PL/SQL, a mechanism called exception handling lets you "bulletproof" your program so that it can continue operating in the presence of errors. A pragma is a compiler directive that is processed at compile time, not at run time. I will add another example. –tgxiii May 16 '11 at 16:50 add a comment| 5 Answers 5 active oldest votes up vote 93 down vote accepted Yes.
Oracle Error Sqlcode
This trigger fires the user defined error message when the below UPDATE statement is executed during the weekend. See Also: Example 12-13, where a bulk SQL operation continues despite exceptions Retrying Transactions After Handling Exceptions To retry a transaction after handling an exception that it raised, use this technique: Topics Compile-Time Warnings Overview of Exception Handling Internally Defined Exceptions Predefined Exceptions User-Defined Exceptions Redeclared Predefined Exceptions Raising Exceptions Explicitly Exception Propagation Unhandled Exceptions Error Code and Error Message Retrieval Continuing Would you like to answer one of these unanswered questions instead?
Although you cannot anticipate all possible errors, you can plan to handle certain kinds of errors meaningful to your PL/SQL program. Example 11-19 is like Example 11-17 except that an enclosing block handles the exception that the exception handler in the inner block raises. If the exception handler is in an anonymous block, then control transfers to the host environment (for example, SQL*Plus) If an exception is raised in a block that has no exception Oracle Raise Exception With Message Should I boost his character level to match the rest of the group?
However, if you exit with an unhandled exception, PL/SQL does not assign values to OUT parameters (unless they are NOCOPY parameters). Example 11-2 Displaying and Setting PLSQL_WARNINGS with DBMS_WARNING Subprograms Disable all warning messages for this session: ALTER SESSION SET PLSQL_WARNINGS='DISABLE:ALL'; With warnings disabled, this procedure compiles with no warnings: CREATE OR Inside an exception handler, if you omit the exception name, the RAISE statement reraises the current exception. You can also perform a sequence of DML operations where some might fail, and process the exceptions only after the entire operation is complete, as described in "Handling FORALL Exceptions with
Therefore, a PL/SQL block cannot catch an exception raised by a remote subprogram. Pl Sql Continue After Exception The keyword OTHERS cannot appear in the list of exception names; it must appear by itself. A pragma is a compiler directive that is processed at compile time, not at run time. The maximum length of an Oracle error message is 512 characters including the error code, nested messages, and message inserts such as table and column names.
Pl Sql Exception Handling Examples
If there is no enclosing block, control returns to the host environment. https://www.techonthenet.com/oracle/errors/ If you redeclare a global exception in a sub-block, the local declaration prevails. Oracle Error Sqlcode However, other user-defined exceptions must be raised explicitly by RAISE statements. Oracle Sql Error Code User-defined You can declare your own exceptions in the declarative part of any PL/SQL anonymous block, subprogram, or package.
If either ex_name_2 or ex_name_3 was raised, then statements_2 run. Copyright © 2003-2016 TechOnTheNet.com. Why isn't tungsten used in supersonic aircraft? Burleson Consulting The Oracle of Database Support Oracle Performance Tuning Remote DBA Services Copyright © 1996 - 2016 All rights reserved by Burleson Oracle is the registered trademark of Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block
The number that SQLCODE returns is negative unless the Oracle error is no data found, in which case SQLCODE returns +100. SELECT ... For more information, see "Handling FORALL Exceptions Immediately" and "Handling FORALL Exceptions After FORALL Statement Completes". The second parameter accepts a user defined error message of 2048 kb of string at most.
The error number and message can be trapped like any Oracle error. Pl Sql Exception Handling Best Practices Reraising the exception passes it to the enclosing block, which can handle it further. (If the enclosing block cannot handle the reraised exception, then the exception propagates—see "Exception Propagation".) When reraising go
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
Figure 10-1, Figure 10-2, and Figure 10-3 illustrate the basic propagation rules. Here you can list down as many as exceptions you want to handle. If earnings are zero, the function DECODE returns a null. COLLECTION_IS_NULL 06531 -6531 It is raised when a program attempts to apply collection methods other than EXISTS to an uninitialized nested table or varray, or the program attempts to assign values
Isolating error-handling routines makes the rest of the program easier to read and understand. Write out debugging information in your exception handlers. With DBMS_WARNING subprograms, you can save the current PLSQL_WARNINGS setting, change the setting to compile a particular set of subprograms, and then restore the setting to its original value. tr command has no effect when used in $() and saved in a variable Was the Boeing 747 designed to be supersonic?
Place the statement in its own sub-block with its own exception handlers. You cannot return to the current block from an exception handler. In Example 11-3, a procedure uses a single exception handler to handle the predefined exception NO_DATA_FOUND, which can occur in either of two SELECT INTO statements. User-defined Exceptions PL/SQL allows you to define your own exceptions according to the need of your program.
CASE_NOT_FOUND 06592 -6592 It is raised when none of the choices in the WHEN clauses of a CASE statement is selected, and there is no ELSE clause. Passing a zero to SQLERRM always returns the message normal, successful completion. 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. What's the difference in sound between the letter η and the diphthong ει?
If you know that your database operations might raise specific internally defined exceptions that do not have names, then give them names so that you can write exception handlers specifically for That is, the exception reproduces itself in successive enclosing blocks until a block has a handler for it or there is no enclosing block (for more information, see "Exception Propagation"). Raising Exceptions with the RAISE Statement PL/SQL blocks and subprograms should raise an exception only when an error makes it undesirable or impossible to finish processing. Is it illegal to DDoS a phishing page?
In the following example, the INSERT statement might raise an exception because of a duplicate value in a unique column. Example 11-13 Exception that Propagates Beyond Scope is Handled CREATE OR REPLACE PROCEDURE p AUTHID DEFINER AS BEGIN DECLARE past_due EXCEPTION; due_date DATE := trunc(SYSDATE) - 1; todays_date DATE := trunc(SYSDATE); That lets you refer to any internal exception by name and to write a specific handler for it. You can have any number of exception handlers, and each handler can associate a list of exceptions with a sequence of statements.
You can place RAISE statements for a given exception anywhere within the scope of that exception. Propagation of Exceptions Raised in Exception Handlers An exception raised in an exception handler propagates immediately to the enclosing block (or to the invoker or host environment if there is no Table 11-1 summarizes the categories of warnings. Note: When using pragma RESTRICT_REFERENCES to assert the purity of a stored function, you cannot specify the constraints WNPS and RNPS if the function calls SQLCODE or SQLERRM.