pl sql exception handling examples

This article mainly introduces the functions and examples of JS exception handling, that is, try .. catch statement. For more information, see the following common sense: when a JavaScript script is executed in a browser, when a script error occurs and you do not manually capture exceptions, he will display a yellow exclamation mark under the browser. this is nor

Specific as follows:Header (' Content-type:text/html;charset=utf-8 ');Create an email exception handling classClass Emailexception extends exception{}Creating the PWD Exception handling classClass Pwdexception extends exception{Pu

First, the conceptUser-defined exception errors are triggered by explicitly using the RAISE statement. When an exception error is thrown, the control moves to the exception block exception error section and executes the error-handling code.For

Check whether the user entered a number in the middle of 0-5: Multiple catch Blocks Using System; Using System. Collections. Generic; Using System. LINQ; Using System. text; Namespace Predictiondemo { Class Program { Static Void Main ( String [] ARGs ){ String Userinput; While ( True ){Try {Console. Write ( "Input a number between 0 and 5" + "(Or just hit return to exist)>" ); Userinput = console. Readline (); If (Userinput = "" ) Break ; Int Index = convert. toint32 (userinput ); If (Ind

--Pre-defined exception: The system has declared an exceptionDECLAREV_name EMP. Ename%type;BEGINSELECT ename to V_name from EMP WHERE EMPNO = 1234;EXCEPTIONWhen No_data_found ThenDbms_output. Put_Line (' No data found ');When OTHERS ThenDbms_output.put_line (' other anomalies ');END;--Non-predefined exception: System exception, the system does not declare itDECLA

;--INSERT INTO error_log (id,code,errm,e_date)--VALUES (seq_log.nextval,v_code,v_errm,sysdate);End5.2 Raise_application_errorUsed to customize error messages in a PL/SQL application.Raise_application_error can only be used in procedures, functions, packages, triggers, and cannot be used in anonymous blocks.Syntax: Raise_application_error (error_number,message);DescriptionError_number: Must be a negative int

Oracle11gRelease1 (11.1) PLSQL _ multi-dimensional Collection type and its exceptions. Although the collection only has one dimension, it can model a multi-dimensional Collection. Create 1 Oracle 11g Release 1 (11.1) PL/SQL _ multi-dimensional Collection type and its exceptions. Although the collection only has one dimension, it can model a multi-dimensional Collection. Create 1 Content Multi-dimensiona

Weird error !! An error occurred while connecting adodb to oracle. However, PL/SQL can be used for normal connection lt; B gt; Warning lt;/B gt;: ocilogon () nbsp; \ adodb \ drivers \ adodb-oci8.inc.php lt;/B gt; weird error !! An error occurred while connecting adodb to oracle. However, PL/SQL can be used for n

Test Code: DECLARE BEGIN -- Most normal way to handle exception. DECLARE Except_test0 EXCEPTION; BEGIN RAISE effect_test0; EXCEPTION WHEN effect_test0 THEN Dbms_output.put_line ('Test0 effect_test0: SQLCODE ='| SQLCODE | ', SQLERRM ='| SQLERRM ); WHEN OTHERS THEN Dbms_output.put_line ('Test0 OTHERS: SQLCODE ='| SQLCODE | ', SQLERRM ='| SQLERRM

WHEN handling exceptions, pay special attention to the use of when others then, because when others then will eat all the exceptions. If no information is thrown after when others then, that is, when others then null, this may greatly increase the difficulty of program troubleshooting in the future, because even if an error occurs, there is no prompt. Therefore, we need to pay special attention to the when others then. In addition to one manual search

Weird error !! An error occurred while connecting to oracle in adodb but PLSQl can be normally connected lt; B gt; Warning lt; B gt;: ocilogon () nbsp; adodbdriversadodb-oci8.inc.php lt; B gt; online lt; B gt; 244 lt; B gt; lt; br gt; 172.17.6 strange error !! An error occurred while connecting adodb to oracle. However, PL/SQL can be used for normal connection. Warning: Ocilogon () \ Adodb \ d

Exception Handling is generally considered the weakest aspect of T-SQL scripting. Fortunately, this was changed in SQL Server 2005 because SQL Server 2005 supports structured exception handlin