Oracle中怎樣一次執行多條sql語句

今天我在做一個項目的時候，需要向資料庫(資料庫是Oracle 8.0.5)一次同時插入多條資料，但是程式運行卻出錯：ORA-00911: 無效字元。SQL語句如下：

DELETE FROM SYSROLEOPENR WHERE ROLEID = 2;
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090010';
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090020';
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090050';

我去掉所有的;號，也報錯。困惑了許久。如果資料庫是SQL SERVER 2000，程式去掉分號後是可以正常啟動並執行。後來發現在Oracle中需要加上begin
end才正確。改成以下的SQL就正確了:

BEGIN
  DELETE FROM SYSROLEOPENR WHERE ROLEID = 2;
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090010';
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090020';
  INSERT INTO SYSROLEOPENR
    (PKID, ROLEID, OPERID)
    SELECT SYSROLEOPENR_PKID_SEQ.NEXTVAL, '2' ROLEID, OPERID
      FROM SYSMODULEOPER
     WHERE OPERCODE = '300090050';

END;