Pl/sql Print Sql Error Message
Contents |
Server MySQL MariaDB PostgreSQL SQLite MS Office Excel Access Word Web Development HTML CSS Color Picker Languages C sqlerrm in pl/sql Language More ASCII Table Linux UNIX Java Clipart Techie Humor pl sql sqlcode Advertisement Oracle Basics Oracle Advanced Oracle Cursors Oracle Exception Handling Named Programmer-Defined Exception Named System
Functions For Error Trapping Are Contained In Which Section Of A Pl/sql Block
Exception WHEN OTHERS Clause SQLCODE SQLERRM Oracle Foreign Keys Oracle Loops/Conditionals Oracle Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions Conversion Functions Analytic Functions
Oracle Sql Error Codes
Advanced Functions NEXT: Declare Cursor Oracle / PLSQL: SQLERRM Function This Oracle tutorial explains how to use the Oracle/PLSQL SQLERRM function with syntax and examples. What does the SQLERRM Function do? The SQLERRM function returns the error message associated with the most recently raised error exception. This function should only be oracle raise exception with message used within the Exception Handling section of your code. Syntax The syntax for the SQLERRM function in Oracle/PLSQL is: SQLERRM Parameters or Arguments There are no parameters or arguments for the SQLERRM function. Note See also the SQLCODE function. Example Since EXCEPTION HANDLING is usually written with the following syntax: EXCEPTION WHEN exception_name1 THEN [statements] WHEN exception_name2 THEN [statements] WHEN exception_name_n THEN [statements] WHEN OTHERS THEN [statements] END [procedure_name]; You could use the SQLERRM function to raise an error as follows: EXCEPTION WHEN OTHERS THEN raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM); END; Or you could log the error to a table using the SQLERRM function as follows: EXCEPTION WHEN OTHERS THEN err_code := SQLCODE; err_msg := SUBSTR(SQLERRM, 1, 200); INSERT INTO audit_table (error_number, error_message) VALUES (err_code, err_msg); END; NEXT: Declare Cursor Share this page: Advertisement Back to top Home | About Us | Contact Us | Testi
Churchill Run-time errors arise from design faults, coding mistakes, hardware failures, and many other sources. Although you cannot anticipate all possible errors, you can plan to handle certain kinds of errors
Sqlerror
meaningful to your PL/SQL program. With many programming languages, unless you disable error oracle sql codes list checking, a run-time error such as stack overflow or division by zero stops normal processing and returns control to the operating oracle sqlcode list system. With PL/SQL, a mechanism called exception handling lets you "bulletproof" your program so that it can continue operating in the presence of errors. This chapter discusses the following topics: Overview of PL/SQL https://www.techonthenet.com/oracle/exceptions/sqlerrm.php Error Handling Advantages of PL/SQL Exceptions Predefined PL/SQL Exceptions Defining Your Own PL/SQL Exceptions How PL/SQL Exceptions Are Raised How PL/SQL Exceptions Propagate Reraising a PL/SQL Exception Handling Raised PL/SQL Exceptions Tips for Handling PL/SQL Errors Overview of PL/SQL Error Handling In PL/SQL, a warning or error condition is called an exception. Exceptions can be internally defined (by the run-time system) or user defined. Examples of internally defined https://docs.oracle.com/cd/A97630_01/appdev.920/a96624/07_errs.htm exceptions include division by zero and out of memory. Some common internal exceptions have predefined names, such as ZERO_DIVIDE and STORAGE_ERROR. The other internal exceptions can be given names. You can define exceptions of your own in the declarative part of any PL/SQL block, subprogram, or package. For example, you might define an exception named insufficient_funds to flag overdrawn bank accounts. Unlike internal exceptions, user-defined exceptions must be given names. When an error occurs, an exception is raised. That is, normal execution stops and control transfers to the exception-handling part of your PL/SQL block or subprogram. Internal exceptions are raised implicitly (automatically) by the run-time system. User-defined exceptions must be raised explicitly by RAISE statements, which can also raise predefined exceptions. To handle raised exceptions, you write separate routines called exception handlers. After an exception handler runs, the current block stops executing and the enclosing block resumes with the next statement. If there is no enclosing block, control returns to the host environment. In the example below, you calculate and store a price-to-earnings ratio for a company with ticker symbol XYZ. If the company has zero earnings, the predefined exception ZERO_DIVIDE is raised. This stops normal execution of the block and transfer
Error Handling" in Oracle Database PL/SQL Language Reference. See the end of this chapter for TimesTen-specific considerations. The following https://docs.oracle.com/cd/E11882_01/timesten.112/e21639/exceptions.htm topics are covered: Understanding exceptions Trapping exceptions Showing errors in ttIsql https://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_output.htm Differences in TimesTen: exception handing and error behavior Understanding exceptions This section provides an overview of exceptions in PL/SQL programming, covering the following topics: About exceptions Exception types About exceptions An exception is a PL/SQL error that is raised during program execution, either implicitly by oracle sql TimesTen or explicitly by your program. Handle an exception by trapping it with a handler or propagating it to the calling environment. For example, if your SELECT statement returns multiple rows, TimesTen returns an error (exception) at runtime. As the following example shows, you would see TimesTen error 8507, then the associated ORA error message. (ORA pl/sql print sql messages, originally defined for Oracle Database, are similarly implemented by TimesTen.) Command> DECLARE > v_lname VARCHAR2 (15); > BEGIN > SELECT last_name INTO v_lname > FROM employees > WHERE first_name = 'John'; > DBMS_OUTPUT.PUT_LINE ('Last name is :' || v_lname); > END; > / 8507: ORA-01422: exact fetch returns more than requested number of rows 8507: ORA-06512: at line 4 The command failed. You can handle such exceptions in your PL/SQL block so that your program completes successfully. For example: Command> DECLARE > v_lname VARCHAR2 (15); > BEGIN > SELECT last_name INTO v_lname > FROM employees > WHERE first_name = 'John'; > DBMS_OUTPUT.PUT_LINE ('Last name is :' || v_lname); > EXCEPTION > WHEN TOO_MANY_ROWS THEN > DBMS_OUTPUT.PUT_LINE (' Your SELECT statement retrieved multiple > rows. Consider using a cursor.'); > END; > / Your SELECT statement retrieved multiple rows. Consider using a cursor. PL/SQL procedure successfully completed. Exception types There are three types of exceptions: Predefined exceptions are error conditions that are defined by PL/SQL. Non-predefine
Using DBMS_OUTPUT Overview Security Model Operational Notes Exceptions Rules and Limits Examples Data Structures TABLE Types OBJECT Types Summary of DBMS_OUTPUT Subprograms Using DBMS_OUTPUT This section contains topics which relate to using the DBMS_OUTPUT package. Overview Security Model Operational Notes Exceptions Rules and Limits Examples Overview The package is typically used for debugging, or for displaying messages and reports to SQL*DBA or SQL*Plus (such as are produced by applying the SQL command DESCRIBE to procedures). The PUT Procedure and PUT_LINE Procedure in this package enable you to place information in a buffer that can be read by another trigger, procedure, or package. In a separate PL/SQL procedure or anonymous block, you can display the buffered information by calling the GET_LINE Procedure and GET_LINES Procedure. If the package is disabled, all calls to subprograms are ignored. In this way, you can design your application so that subprograms are available only when a client is able to process the information. Security Model The dbmsotpt.sql script must be run as user SYS. This creates the public synonym DBMS_OUTPUT, and EXECUTE permission on this package is granted to public. Operational Notes If you do not call GET_LINE, or if you do not display the messages on your screen in SQL*Plus, the buffered messages are ignored. SQL*Plus calls GET_LINES after issuing a SQL statement or anonymous PL/SQL calls. Typing SET SERVEROUTPUT ON in SQL*Plus has the effect of invoking DBMS_OUTPUT.ENABLE (buffer_size => NULL); with no limit on the output. You should generally avoid having application code invoke either the DISABLE Procedure or ENABLE Procedure because this could subvert the attempt of an external tool like SQL*Plus to control whether or not to display output. Note: Messages sent using DBMS_OUTPUT are not actually sent until the sending subprogram or trigger completes. There is no mechanism to flush output during the execution of a procedure. Exceptions DBMS_OUTPUT subprograms raise the application error ORA-20000, and the output procedures can return the following errors: Table 86-1 DBMS_OUTPUT Errors Error Description ORU-10027: Buffer overflow ORU-10028: Line length overflow Rules and Limits The maximum line size is 32767 bytes. The default buffer size is 20000 bytes. The minimum size is 2000 bytes and the maximum is unlimited. Examples Example 1: Using a Trigger to Produce Output You can use a trigger to print out some output from the debugging process. For example, you could code the trigger to invoke: DBMS_OUTPUT.PUT_LINE('I got here:'||:new.col||' is the new value'); If you have enabled th