sql - SQL存储过程带游标更新表

Question

我正在尝试使用存储过程更新表，但它给出了一个错误，请解释是什么原因。这是代码。

CREATE OR REPLACE Procedure UpdateItem
   ( ITEM_TYPE_NAME IN varchar2 )
IS
    V_TABLE_NAME    VARCHAR2(100);
    V_R_TABLE_NAME  VARCHAR2(100);
    V_SQL_STMT     VARCHAR2(1000);

   cursor c1 is
    select C.RTARGETITEMID ||'#'||C.VERSIONID||'#'||trim(p.CREATEUSERID)||'#bsacm#CBR.CLLCT001# #/icmrm/ICMResourceManager#727665642020202020202020#2509.000000#9080#1#ICMNLSDB# #201#1#' as ITEM_REF, C.ITEMID as ITEM_ID 
    from  V_TABLE_NAME  C, V_R_TABLE_NAME R 
    where C.TIEFLAG = 0 and C.ITEMID=R.ITEMID;


BEGIN

select TABLE_NAME into V_TABLE_NAME 
from user_indexes 
where INDEX_NAME = (SELECT distinct c.INDEXNAME
                    FROM ICMSTNLSKEYWORDS k, ICMSTCOMPDEFS d, ICMSTTEXTINDEXES c
                    WHERE k.KEYWORDCLASS = 2 AND k.KEYWORDCODE = d.ITEMTYPEID AND d.COMPONENTTYPEID = c.COMPONENTTYPEID AND k.KEYWORDNAME = ITEM_TYPE_NAME);

select TABLE_NAME into V_R_TABLE_NAME 
from user_constraints 
where CONSTRAINT_NAME in (select distinct R_CONSTRAINT_NAME 
                          from user_constraints 
                          where TABLE_NAME in (select TABLE_NAME 
                                              from user_indexes 
                                              where INDEX_NAME = (SELECT distinct c.INDEXNAME
                                                                  FROM ICMSTNLSKEYWORDS k, ICMSTCOMPDEFS d, ICMSTTEXTINDEXES c
                                                                  WHERE k.KEYWORDCLASS = 2 AND k.KEYWORDCODE = d.ITEMTYPEID AND d.COMPONENTTYPEID = c.COMPONENTTYPEID AND k.KEYWORDNAME=ITEM_TYPE_NAME)));

open c1;
fetch c1 into V_SQL_STMT;
EXECUTE IMMEDIATE 'UPDATE V_TABLE_NAME set TIEFLAG = ''1'',TIEREF = c1.ITEM_REF WHERE ITEMID = ITEM.ITEM_ID';

commit;

close c1;

EXCEPTION
WHEN OTHERS THEN
      raise_application_error(-20001,'An error was encountered - '||SQLCODE||' -ERROR- '||SQLERRM);
END;

这是错误：

错误（9,5）：PL/SQL：忽略 SQL 语句错误（10,28）：PL/SQL：ORA-00942：表或视图不存在

Answer 1

由于 V_TABLE_NAME 是一个变量，您需要在字符串中连接该变量。您这样做的方式假设您的系统中有一个名为 *V_TABLE_NAME* 的表。

据我所知，您需要更改线路：

EXECUTE IMMEDIATE 'UPDATE V_TABLE_NAME set TIEFLAG = ''1'',TIEREF = c1.ITEM_REF WHERE ITEMID = ITEM.ITEM_ID';

至

立即执行'更新'||V_TABLE_NAME||' 设置 TIEFLAG = ''1''，TIEREF = c1.ITEM_REF WHERE ITEMID = ITEM.ITEM_ID';