添加别名在 oracle 中出错

Question

我想在 stored procedure 中为我的列名称提供别名，但它并没有如我所愿。下面是我试过的代码

STREX:='SELECT DISTINCT AM.APP_MST_ID, NVL(AM.APPLICATIONNAME,''-'') as ''APPLICATION NAME'', NVL(AD.URLPATH,''-'')URL, NVL(AM.PROJECTNO,''-'')PROJECTNO, NVL(AM.VSS_FOLDER_LOC,''-'')VSSFOLDERLOC,
         NVL(AU.NAME, ''-'')SPOCUSER, NVL(AUR.NAME,''-'')REQUESTEDBY, NVL(AUD.NAME,''-'')DELIVERYMANAGER             
           FROM APPLICATION_MASTER AM 
                INNER JOIN APPLICATION_DETAILS AD
                   ON AM.APP_MST_ID = AD.APP_MST_ID 
                INNER JOIN APPUSER_UMS AU
                   ON AM.APP_MST_ID = AU.APP_USERID    
                   INNER JOIN APPUSER_UMS AUR
                 ON AUR.APP_USERID = AM.REQUESTED_BY_APPUSRID  
                 INNER JOIN  APPUSER_UMS AUD
                      ON AUD.APP_USERID = AM.DELIVERY_MANAGER_APPUSRID  
                       WHERE UPPER(AM.'|| P_PARAM_TYPE || ') ' || P_OPERATOR  || ' :PARAM';
         /* WHERE AM.'|| UPPER(P_PARAM_TYPE) ||' '|| P_OPERATOR  || ' :PARAM'; */

 DBMS_OUTPUT.PUT_LINE('STREX '|| STREX);
 OPEN P_RETURN FOR STREX USING VAL;

I want to show as Application Name for first column

Answer 1

尝试：

...SELECT DISTINCT AM.APP_MST_ID, NVL(AM.APPLICATIONNAME,''-'') as "Application Name"...

双引号（"）用于指定标识符名称，单引号（'）用于分隔数据中的字符串。

添加别名在 oracle 中出错

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