declare continue handler for sqlstate '02000'达梦写法 在达梦数据库中,你可以使用以下语法来声明一个处理程序来处理特定的 SQL 状态码: sql复制代码 DECLARE HANDLER FOR SQLSTATE '02000' BEGIN -- 处理 SQL 状态码 '02000' 的逻辑 END; 上述代码中,SQLSTATE '02000'是要处理的 SQL 状态码。你可以在处理...
02000 主要代表的意思可以理解为：发生下述异常之一：SELECT INTO 语句或 INSERT 语句的子查询的结果为空表。在搜索的 UPDATE 或 DELETE 语句内标识的行数为零。在 FETCH 语句中引用的游标位置处于结果表最后一行之后。就是说你定义了，当fetch游标到了数据库表格最后一行的时候，设置done=1....
在MySql中,造成游标溢出时会引发mysql预定义的NOT FOUND错误,所以在上面使用下面的代码指定了当引发not found错误时定义一个continue 的事件,指定这个事件发生时修改done变量的值。 declare continue HANDLER for not found set done = true; 也有这样写的 DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' set done =...
declareallNamevarchar(255)default''; declarecur1CURSORFORSELECTnameFROMtest.level; declareCONTINUEHANDLERFORSQLSTATE'02000'SETtmpname =null; #也可以这么写 #DECLARECONTINUEHANDLERFORNOTFOUNDSETtmpname =null; OPENcur1; FETCHcur1INTOtmpName; WHILE ( tmpnameisnotnull) DO settmpName = CONCAT(tmpName ...
declare CONTINUE HANDLER FOR SQLSTATE '02000' SET tmpname = null; #也可以这么写 #DECLARE CONTINUE HANDLER FOR NOT FOUND SET tmpname = null; OPEN cur1; FETCH cur1 INTO tmpName; WHILE ( tmpname is not null) DO set tmpName = CONCAT(tmpName ,";") ; set allName = CONCAT(allName ,...
BEGIN /*局部变量的定义*/ declaretmpNamevarchar(20)default''; declareallNamevarchar(255)default''; declarecur1CURSORFORSELECTnameFROMtest.level; declareCONTINUEHANDLERFORSQLSTATE'02000'SETtmpname=null; #也可以这么写 #DECLARE CONTINUE HANDLER FOR NOT FOUNDSETtmpname=null; ...
() RETURNS INT SQL SECURITY INVOKER DETERMINISTIC BEGIN DECLARE qty INT DEFAULT 0; DECLARE x INT DEFAULT 0; DECLARE done INT DEFAULT 0; DECLARE cur CURSOR FOR SELECT i FROM t1; DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done =...
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' BEGINSET at_end = 1;SELECT SQLCODE,SQLSTATE INTO V_SQLCODE, V_SQLSTATE FROM SYSIBM.SYSDUMMY1;SET V_MSG = CHAR(V_SQLCODE)||V_SQLSTATE||'WARNING' ;SET V_PROC_FLG=1;SET V_PROC_SUCC_FLG=0;SET V_PROC_STM=NULL;SET V_PROC_ETM=NULL;...
BEGIN /*局部变量的定义*/ declaretmpNamevarchar(20)default''; declareallNamevarchar(255)default''; declarecur1CURSORFORSELECTnameFROMtest.level; declareCONTINUEHANDLERFORSQLSTATE'02000'SETtmpname=null; #也可以这么写 #DECLARE CONTINUE HANDLER FOR NOT FOUNDSETtmpname=null; ...