( FILENAME = N'M:/test/db_log.ldf' ) FOR ATTACH GO
1、DECLARE EXIT HANDLER FOR SQLEXCEPTION 语句后面可以跟一个 begin end的复合语句块,也可以直接跟一个简单语句例如 :DECLARE EXIT HANDLER FOR SQLEXCEPTION v_succ=0; 2、EXIT会在执行异常后执行执行 FOR SQLEXCEPTION 后的语句或块而整个停止下来;CONTINUE选项会在异常后继续执行,从而将id为2的记录写入到数据库...
BEGIN -- 错误处理 DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN TRUNCATE TABLE reuters_interface.reuters_dss_equity_price; SET p_result = FALSE; END; -- 处理数据 REPLACE INTO reuters_dss.equity_price (ric, company_name, currency_code, exchange_code, ticker, trade_date, ask_price, bid_price, ...
DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN TRUNCATE TABLE reuters_interface.reuters_dss_equity_price; SET p_result = FALSE; END; -- 处理数据 REPLACE INTO reuters_dss.equity_price (ric, company_name, currency_code, exchange_code, ticker, trade_date, ask_price, bid_price, ...
DELIMITER $$ CREATE PROCEDURE xxx.proc_reuters_dss_equity_price(OUT p_result BOOLEAN) BEGIN -- 错误处理 DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN TRUNCATE TABLE reuters_interface.reuters_dss_equity_price; SET p_result = FALSE; END; -- 处理数据 ...
以下是一个基本的循环用法示例,其中包含了DECLARE CONTINUE HANDLER FOR SQLEXCEPTION: CREATE PROCEDURE example_procedure() BEGIN DECLARE done BOOLEAN DEFAULT FALSE; DECLARE some_id INT; -- 定义异常处理程序 DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET done = TRUE; -- 定义游标 DECLARE cursor_name CURSOR...
SET @info = 'NO_SUCH_TABLE'; #方法6：使用SQLEXCEPTION DECLARE EXIT HANDLER FOR SQLEXCEPTION ...
DECLARE HANDLER EXCEPTION;LI_SQLCODE VARCHAR2(100);BEGIN LI_SQLCODE := SQLCODE;END;
1.Handler 学习 异常 1)语法: DECLARE handler-type Handler for Condition SQL-procedure-statement; 如:DECLARE EXIT HANDLER FOR SQLEXCEPTION ...或 DECLARE CONTINUE HANDLER FOR NOT FOUND ... 2)解释: 当DB2触发一个满足定义的条件时(发生异常情况时),就会将控制权交给条件处理器(Condition Handler), ...