pl sql exception handling examples

Exception handling:Even if a good Pl-sql program encounters errors or unforeseen events, a good program should be able to handle all kinds of error situations and recover as much as possible from the error. An error that occurs while the program is running becomes an exception. After an

exception named Ex_custom_error so that the exception can be caught Begin INSERT INTO Dept values (' AAA ', ' BBB '); exception When Ex_custom_error Then Dbms_output.put_line (' sector number already exists '); End --Exception handling

Environment: ORCLE 10GAn SQL statement is displayed separately. How to handle exceptions.1) Standard PL/SQL blocks containing Exception HandlingDECLARENo_Detail_record EXCEPTION;PRAGMA EXCEPTION_INIT(No_Detail_record,-20000 );V_nDetailCount number;BEGINSelect count (*) into

We know that any programming language can handle exceptions, such as Java and C ++.Oracle DatabaseHow to handle exceptions? In fact, the handling of Oracle Database exceptions is actually very simple. This article givesPL/SQL Exception HandlingThe Code is as follows: declare e_1exception; begin begin dbms_output.put_line('0000000');

Handling table:The case is below5. Handling exceptions in OracleDeclareX varchar2 (10 );BeginSelect a1 into x from a where a2 = 'qw'; -- query the value and assign it to the variable.Dbms_output.put_line ('x value '| x );Exception-- Exception Handling data. What should I do

Handling table:The case is below5. Handling exceptions in OracleDeclareX varchar2 (10 );BeginSelect a1 into x from a where a2 = 'qw'; -- query the value and assign it to the variable.Dbms_output.put_line ('x value '| x );Exception-- Exception Handling data. What should I do

Exceptions in Oracle database: no exception is transferred because there is no distinction between a inspected exception and a non-inspected exception.1. The generation of exceptions:2. Handling of Exceptions:Declare--Variable definition, initialization assignment.Begin--Assignment of variables, function calls, if,whil

%NOTFOUND boolean attribute, with % ROWCOUNT%ISOPEN Boolean property, the value is always FALSE. SQL command closes implicit cursor immediately after execution Example:--Print employee InformationDECLAREv_sal Employees.last_name%type; --v_id indicates that v_id will be entered by the externalv_id employees.employee_id%Type:= v_id;BEGIN UPDATEEmployeesSETSalary=Salary*1.2 WHEREemployee_id=v_id; IFSql%NOTFOUND ThenDbms_output.put_line ('no such perso