IF THEN ELSE

Question

我在下面的代码中收到错误。我添加了一个问题所在的恐怖<------。

错误消息表明需要THEN，但当我使用THEN时，则表示预计会BEGIN。

Error(27,6): PLS-00103: Encountered the symbol "BEGIN" when expecting one of the following:     then and or The symbol "then" was substituted for "BEGIN" to continue. 
Error(30,6): PLS-00103: Encountered the symbol "END" when expecting one of the following:     , ; return returning

我做错了什么？

感谢您的帮助

    create or replace PROCEDURE "sp_updateUserPassword"(newUserPwd IN VARCHAR2, curIsoUserUID IN NUMBER)
IS

curUserID NUMBER;
userDateCreated DATE;
oldUserPwd VARCHAR2(255);

BEGIN   

  SELECT ISOUID INTO curUserID FROM ISOUSERS WHERE ISOUID=curIsoUserUID;
  SELECT DATECREATE INTO userDateCreated FROM ISOUSERS WHERE ISOUID=curIsoUserUID;
  SELECT PASSWORD INTO oldUserPwd FROM ISOUSERS WHERE ISOUID=curIsoUserUID;

  IF(newUserPwd = oldUserPwd)
    THEN
      raise_application_error(-20000, 'The new password must be different from the previous password');
      RETURN;
  END IF;

  IF NOT EXISTS
                (
                  SELECT ISOUID 
                  FROM OLDUSERPASSWORDS 
                  WHERE ISOUID=curIsoUserUID
                )

     BEGIN           <------------ Error is here
        INSERT INTO OLDUSERPASSWORDS(ISOUID, DATECREATE, DATELASTCHANGE, CURRENTPASS, OLDPASS) 
        VALUES(curUserID, userDateCreated, SYSDATE, newUserPwd, oldUserPwd)
     END;


/*raise_application_error(-20000, 'TEST');*/
END "sp_updateUserPassword";

--------------------------更新-------------------- ------------

更正了代码，现在看起来像这样：

   IF NOT EXISTS
                (
                  SELECT ISOUID 
                  FROM OLDUSERPASSWORDS 
                  WHERE ISOUID=curIsoUserUID
                )
    THEN     
      BEGIN           
          INSERT INTO OLDUSERPASSWORDS(ISOUID, DATECREATE, DATELASTCHANGE, CURRENTPASS, OLDPASS) 
          VALUES(curUserID, userDateCreated, SYSDATE, newUserPwd, oldUserPwd)
      END;
  END IF;

我收到此错误：

Error(30,7): PL/SQL: ORA-00933: SQL command not properly ended
Error(31,7): PLS-00103: Encountered the symbol "IF" when expecting one of the following:     ; <an identifier> <a double-quoted delimited-identifier>

也许这只是我遗漏的一个小错误？

Answer 1

IF THEN ELSE

的PL / SQL语法错误

正确的语法是：

for i in `find . -type f `;do  filename=`ls $i | cut -f 2 -d "."`;  mv $i ./$filename.ext; done

您的代码是有效的：

IF condition THEN
  statements
END IF;

校正的

IF condition THEN
  BEGIN
    statements
  END;

Answer 2

您收到第一个错误，因为您需要在BEGIN块之前添加THEN子句，以使ID语句的语法完整和正确。

您收到第二个错误：

错误（30,7）：PL / SQL：ORA-00933：SQL命令未正确结束

因为您尚未完成INSERT语句。用分号终止它，这应该可以解决这个错误。

   IF NOT EXISTS
                (
                  SELECT ISOUID 
                  FROM OLDUSERPASSWORDS 
                  WHERE ISOUID=curIsoUserUID
                )
    THEN     
      BEGIN           
          INSERT INTO OLDUSERPASSWORDS(ISOUID, DATECREATE, DATELASTCHANGE, CURRENTPASS, OLDPASS) 
          VALUES(curUserID, userDateCreated, SYSDATE, newUserPwd, oldUserPwd);
      END;
  END IF;

Answer 3

您忘记THEN之前的BEGIN，IF NOT EXISTS。

使用＆＃34; BEGIN＆＃34;关键字不正确

3 个答案:

IF THEN ELSE

校正的