1RAISE[level]'format'[,expression[,...]][USINGoption=expression[,...]];2RAISE[level]condition_name[USINGoption=expression[,...]];3RAISE[level]SQLSTATE'sqlstate'[USINGoption=expression[,...]];4RAISE[level]USINGo
PL/SQL Raise ExceptionsSummary: in this tutorial, you will learn how to use the PL/SQL RAISE statement to raise a user-defined exception, an internally defined exception, and re-raising an exception. To raise an exception explicitly, you use the RAISE statement. The RAISE statement allows you...
When exception2 then Sequence of statements; When others then 3、异常的抛出 由三种方式抛出异常 1. 通过PL/SQL运行时引擎 2. 使用RAISE语句 3. 调用RAISE_APPLICATION_ERROR存储过程 当数据库或PL/SQL在运行时发生错误时,一个异常被PL/SQL运行时引擎自动抛出。异常也可以通过RAISE语句抛出 RAISE exception_name...
e_sal_error是已经定义好的异常（e_sal_error exception;这句） raise e_sal_error就是抛出名字为e_sal_error的异常。抛出异常，相当于java中的throw exception抛出e_sal_error 这个异常 代码中应该会有一段处理异常的代码
When exception2 then Sequence of statements; When others then 3、异常的抛出 由三种方式抛出异常 1. 通过PL/SQL运行时引擎 2. 使用RAISE语句 3. 调用RAISE_APPLICATION_ERROR存储过程 当数据库或PL/SQL在运行时发生错误时,一个异常被PL/SQL运行时引擎自动抛出。异常也可以通过RAISE语句抛出 ...
它们通常以装饰器的形式实现,这是一种特殊的函数,将另一个函数作为输入,并对其功能进行一些修改。...result divide(10, 0) # Output: An exception occurred: division by zero 4 — Input Validator 这个封装函数根据指定的条件或数据...
CREATE OR REPLACE PROCEDURE raise_demo (inval NUMBER) IS evenno EXCEPTION; oddno EXCEPTION; BEGIN IF MOD(inval, 2) = 1 THEN RAISE oddno; ELSE RAISE evenno; END IF; EXCEPTION WHEN evenno THEN dbms_output.put_line(TO_CHAR(inval) || ' is even'); WHEN oddno THEN dbms_output.put_li...
CREATE OR REPLACE PROCEDURE raise_demo (inval NUMBER) IS evenno EXCEPTION; oddno EXCEPTION; BEGIN IF MOD(inval, 2) = 1 THEN RAISE oddno; ELSE RAISE evenno; END IF; EXCEPTION WHEN evenno THEN dbms_output.put_line(TO_CHAR(inval) || ' is even'); WHEN oddno THEN dbms_output.put_li...
EXCEPTION 相关知识点: 试题来源: 解析 B 在PL/SQL中,处理异常的关键字分析如下: - **A. THROW**:PL/SQL中不存在该关键字,常见于其他编程语言如Java或C#,因此错误。 - **B. RAISE**:用于显式抛出自定义异常或系统预定义异常(如`RAISE DUP_VAL_ON_INDEX`),正确。 - **C. RAISE_APPLICATION_ERROR*...
The RAISE statement is an easy and powerful way to abort normal processing in a program and immediately “go to” the appropriate WHEN handler. You should, however, never use RAISE in this way. You should raise an exception only when an error has occurred, not to control program flow. ...