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這是什麼,我想如何在動態SQL使用OUT模式
1 declare
2 stmt VARCHAR2(200):='&query';
3 emprec emp%ROWTYPE;
4 BEGIN
5 EXECUTE IMMEDIATE stmt USING out emprec,in &id;
6 DBMS_OUTPUT.PUT_LINE('Emp: '||emprec.ename);
7* END;
SQL>/
Enter value for query: select * into :emprec from emp where empno=:no
old 2: stmt VARCHAR2(200):='&query';
new 2: stmt VARCHAR2(200):='select * into :emprec from emp where empno=:no';
Enter value for id: 7369
old 5: EXECUTE IMMEDIATE stmt USING out emprec,in &id;
new 5: EXECUTE IMMEDIATE stmt USING out emprec,in 7369;
EXECUTE IMMEDIATE stmt USING out emprec,in 7369;
*
ERROR at line 5:
ORA-06550: line 5, column 36:
PLS-00457: expressions have to be of SQL types
ORA-06550: line 5, column 3:
PL/SQL: Statement ignored
但是,當我改變線
EXECUTE IMMEDIATE stmt into emprec USING in &id;
和查詢select * from emp where empno=:no
然後它工作正常,並顯示正確的輸出。任何人都請幫助我,如何解決這個問題
您是否嘗試過使用'RETURNING'子句? – Rachcha