Thu, 12 Apr 2007 02:13:00 GMT

1、insert into "test"
   (
    select char(f_index) from T_QA_RPT_FACE_MONTH where F_RPT_ID=0
   );
如果“select char(f_index) from T_QA_RPT_FACE_MONTH where F_RPT_ID=0“
�q�回�l�果��Cؓ0�Q�那么test表中不会插入记录�?/p>

2、存储过�E�里用for语句比while loop好用些：�Q�类似VB语法�Q?br>SET SCHEMA MES ;

SET CURRENT PATH = "SYSIBM","SYSFUN","SYSPROC","MES";

CREATE PROCEDURE "MES"."P_QA_TEST" ( )

DECLARE iCount INT DEFAULT 0;

SET iCount = 0;
FOR dayrpt AS SELECT * FROM T_QA_RPT_FACE_DAY WHERE F_RPT_ID > 0 DO
ADD_BONUS:
for monrpt as SELECT * FROM T_QA_RPT_FACE_MONTH WHERE F_RPT_ID > 0 DO
   if (monrpt.F_INDEX = dayrpt.F_INDEX) AND (monrpt.F_TYPE = dayrpt.F_TYPE) THEN
   SET iCount=iCount+1;
   insert into "test" values(char(iCount));
   LEAVE ADD_BONUS;
   END IF;
end for ADD_BONUS;

END FOR;
    return iCount;
END;

3、上例中�Q?br>FOR dayrpt AS SELECT * FROM T_QA_RPT_FACE_DAY WHERE F_RPT_ID > 0 DO
dayrpt ��是后面那个select语句的结果集�Q�即for语句只需��M��ơ表�Q�而不会像游标那样锁定表然后进行逐记录select

火星的森�?/a> 2007-04-12 10:13 发表评论

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