query_str :='select '||field_name||' from '||table_name||' where '||field_id||'= :id ';
EXECUTE IMMEDIATE query_str INTO lobloc USING v_id;就是相当于SELECT ...INTO LOBLOC FROM ......
:id 处的值是 v_id.
EXECUTE IMMEDIATE query_str INTO lobloc USING v_id;就是相当于SELECT ...INTO LOBLOC FROM ......
:id 处的值是 v_id.
解决方案 »
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