大批量更新

标签：where   变量   limit   close   not   mit   rowid   open   declare   

 declare
                 type ridarray is table of rowid;  --类型rowid
                 type jqbharray is table of pj_zzsp_fpmx.jqbh%type;  --类型jqbh
                 type kqrqarray is table of pj_zzsp_fpmx.kprq%type;  --类型kprq
                 my_rids ridarray;  --变量1  保存rowid
                 my_jqbh jqbharray; --变量2  保存jqbh
                 my_kprq kqrqarray; --变量3  保存kprq
                cursor my_cur is select t2.rowid, t1.jqbh,t1.kprq from pj_zzsp_fpmx t1 ,pj_zzsp_fpmxzb t2 where t1.id=t2.mxid;  --两表的关联条件
       begin

              open my_cur;
              loop
                        fetch my_cur bulk collect into my_rids, my_jqbh,my_kprq LIMIT 100;
                        forall i in 1 .. my_rids.count
                         
                        update pj_zzsp_fpmxzb t2 set jqbh = lower(my_jqbh(i)),kprq=lower(my_kprq(i)) where rowid = my_rids(i);

                        commit;
                       
                        exit when my_cur%notfound;
              end loop;
              close my_cur;
     end;
--160.697s

大批量更新

标签：where   变量   limit   close   not   mit   rowid   open   declare   

原文地址：http://www.cnblogs.com/iyoume2008/p/6646809.html