Question

我遇到动态查询的一个问题。我试图通过在游标中使用动态SQL来更新一个更新语句。

你能帮我解决一下这个问题......

declare
statement varchar2(1000);
begin
for c1 in(select tenant_id from tenant where tenant_id!=0)
 loop
   for c2 in ( select alignment_id from customer_alignment where affiliation_id is null and tenant_id=c1.tenant_id)
     loop
        insert into t3 select 1 from dual;
         for c3 in ( select *
                     from ca_primary_address ca,customer_alignemnt ca where ca.affiliation_id is null
                     and ca.alignment_id=c2.alignment_id
                     and ca.customer_id=vw.customer_id
                     and ca.alignment_id=vw.alignment_id

                    )
               loop
                   statement :='update customer_alignment set affiliation_id='||vw.affiliation_id||' where customer_alignment_id='||customer_alignment_id||';'
                    execute immediate('begin '||STATEMENT||' end;');
               end loop;

     end loop;
        dbms_output.put_line('Tenant_id '||c1.tenant_id);
 end loop;
end;

执行

时低于错误消息

ORA-06550：第8行，第10栏： PLS-00402：游标的SELECT列表中需要别名以避免重复的列名

请帮我解决这个问题。

很多非常感谢你的帮助。

Sunitha ..

Answer 1

尝试以下方法：

...
statement :='update customer_alignment set affiliation_id='||c3.affiliation_id||' where customer_alignment_id='||c3.customer_alignment_id;
execute immediate(statement);
...

您必须使用游标变量限定更新查询字符串中使用的变量。

Cursor for循环中的动态查询

1 个答案: