本文將為您介紹一個(gè)DB2存儲(chǔ)過程使用動(dòng)態(tài)游標(biāo)的例子，如果您對動(dòng)態(tài)游標(biāo)的使用感興趣的話，不妨一看，對您學(xué)習(xí)DB2的使用會(huì)有所幫助。

CREATE PROCEDURE data_wtptest( IN in_taskid_timestamp varchar(30),

                                 OUT o_err_no int,
                                 OUT o_err_msg varchar(1024))
    LANGUAGE SQL

P1: BEGIN ATOMIC
     --聲明開始
     --臨時(shí)變量出錯(cuò)變量
       DECLARE SQLCODE       integer default 0;
       DECLARE SQLStmt       varchar(1024) default '';
       DECLARE r_code        integer default 0;
       DECLARE state         varchar(1024) default 'AAA';--記錄程序當(dāng)前所作工作
       DECLARE at_end        int DEFAULT 0;
       DECLARE t_destnetid     int default 0;
       DECLARE t_recvid        varchar(30) default '';
       DECLARE SP_Name         varchar(50) default 'data_wtptest';

     --聲明放游標(biāo)的值
     --聲明動(dòng)態(tài)游標(biāo)存儲(chǔ)變量
       DECLARE stmt1 STATEMENT;
       DECLARE c1 CURSOR FOR stmt1;

     --聲明出錯(cuò)處理
       DECLARE EXIT HANDLER FOR SQLEXCEPTION #p#
          begin
             set r_code=SQLCODE;
             set o_err_no=1;
             set o_err_msg='處理['||state||']出錯(cuò) ,'||'錯(cuò)誤代碼SQLCODE:['||CHAR(r_code) || '].';
             insert into fcc_sp_log(object,name,value) values(SP_Name,in_taskid_timestamp,o_err_msg);
          end;
       DECLARE continue HANDLER for not found
          begin
             set at_end = 1;
             set state='找到0行記錄或已經(jīng)到記錄結(jié)尾.';
          end;
     --聲明結(jié)束

     SET state='[add]單獨(dú)測試中,統(tǒng)計(jì)條數(shù)';
            SET SQLStmt='SELECT count(*) FROM wtp_pre_download where task_timestamp = ?';
            PREPARE stmt1 FROM SQLStmt;
            OPEN c1 USING in_taskid_timestamp;
            FETCH c1 INTO t_destnetid;
            CLOSE c1;

            SET state='[add]查具體信息';
            SET at_end = 0;
            SET SQLStmt='SELECT recv_userid FROM wtp_pre_download where task_timestamp = ?';
            PREPARE c1 FROM SQLStmt;
            OPEN c1 USING in_taskid_timestamp;
            SET state='[add]************';
            FETCH c1 INTO t_recvid;
            SET state='[add]============';
            insert into fcc_sp_log(object,name,value) values(SP_Name,in_taskid_timestamp,t_recvid);
     END p1