Question

大家好我正在尝试在Oracle DB上创建一个程序，但我得到2个Erros：

Error(5,5): PL/SQL: SQL Statement ignored
Error(6,20): PL/SQL: ORA-00923: FROM keyword not found where expected

这是我的代码：

create or replace PROCEDURE Nir2 
IS
BEGIN
    select  DISTINCT AREP.CATALOG_TAG as REPOSITORY, UPPER(AREP.maindb), UPPER(MREP.SCHEMANAME), MREP.MACHINE, ctime AS CREATEDATE, TO_CHAR(MREP.LOGON_TIME, 'DD-MON-YYYY') AS LASTLOGON,
          IF  UPPER(a2i_xcat_dbs.a2i_serverstatus.CATALOG_TAG ) IS UPPER( a2i_xcat_dbs.a2i_catalogs.CATALOG_TAG) 
            THEN
              'LOAD' AS MATCH
          ELSE IF  UPPER(MREP.SCHEMANAME) IS UPPER(AREP.maindb)
            THEN
              'MOUNT' AS MATCH
            END
      from a2i_xcat_dbs.a2i_serverstatus LREP, v$session MREP, a2i_xcat_dbs.a2i_catalogs AREP, SYS.USER$ S
      where UPPER(MREP.SCHEMANAME) = UPPER(AREP.maindb) AND MREP.SCHEMANAME <> 'SYSMAN'
        AND MREP.LOGON_TIME >= ALL (select MREP1.LOGON_TIME FROM v$session MREP1 where MREP.SCHEMANAME=MREP1.SCHEMANAME  )
ORDER BY REPOSITORY, CREATEDATE;
END;

修改

这是我的新代码：

create or replace PROCEDURE Nir2 
IS
BEGIN
    select  DISTINCT AREP.CATALOG_TAG as REPOSITORY, UPPER(AREP.maindb), UPPER(MREP.SCHEMANAME), MREP.MACHINE, ctime AS CREATEDATE, TO_CHAR(MREP.LOGON_TIME, 'DD-MON-YYYY') AS LASTLOGON,
          CASE WHEN ( UPPER(a2i_xcat_dbs.a2i_serverstatus.CATALOG_TAG ) = UPPER( a2i_xcat_dbs.a2i_catalogs.CATALOG_TAG) )
            THEN
              'LOAD'
          WHEN ( UPPER(MREP.SCHEMANAME) = UPPER(AREP.maindb))
            THEN
              'MOUNT'
            END AS MATCH
      from a2i_xcat_dbs.a2i_serverstatus LREP, v$session MREP, a2i_xcat_dbs.a2i_catalogs AREP, SYS.USER$ S
      where UPPER(MREP.SCHEMANAME) = UPPER(AREP.maindb) AND MREP.SCHEMANAME <> 'SYSMAN'
        AND MREP.LOGON_TIME >= (select MREP1.LOGON_TIME FROM v$session MREP1 where MREP.SCHEMANAME=MREP1.SCHEMANAME  )
ORDER BY REPOSITORY, CREATEDATE;
END;

我仍然遇到以下错误：

Error(5,5): PL/SQL: SQL Statement ignored
Error(6,82): PL/SQL: ORA-00904: "A2I_XCAT_DBS"."A2I_CATALOGS"."CATALOG_TAG": invalid identifier

Answer 1

您无法在SQL中执行“IF”。相反，做：

Case
  when UPPER(a2i_xcat_dbs.a2i_serverstatus.CATALOG_TAG ) = UPPER( a2i_xcat_dbs.a2i_catalogs.CATALOG_TAG) 
    THEN 'LOAD'
  when UPPER(MREP.SCHEMANAME) = UPPER(AREP.maindb)
    THEN 'MOUNT'
END MATCH

http://docs.oracle.com/cd/E11882_01/server.112/e26088/expressions004.htm#SQLRF20037

编辑：

这......

MREP.LOGON_TIME >= ALL (select MREP1.LOGON_TIME FROM v$session MREP1 where MREP.SCHEMANAME=MREP1.SCHEMANAME  )

......可能会更好......

MREP.LOGON_TIME >= (select MAX(MREP1.LOGON_TIME) FROM v$session MREP1 where MREP.SCHEMANAME=MREP1.SCHEMANAME  )

Answer 2

您的程序中至少有两个错误。

IF语句。请改用CASE。

您必须在select语句中包含INTO子句，例如：

create or replace my_procedure
IS
   l_value1 varchar2(200);
   l_value2 varchar2(200);
BEGIN
   select 'value 1', 'value 2'
   into   l_value1, l_value2
   from   dual;
 END;

过程Oracle DB上的错误

2 个答案: