ORA-00904:"WM_CONCAT":标识符无效
今天客户现场业务甩给我一个报错让处理,ora-00904:"WM_CONCAT":标识符无效。
初步分析了下场景:
前天因为在原先一套库要删除,而他们业务用户A使用的便是该套计划删除的库,故导出A用户,导入到新环境中,expdp/impdp导入导出中均无报错。昨天在新环境给恢复成功,今天业务反映有报错,在新环境中查看确实没有该function,而老环境中有该function,但是是用户B的,猜测之前老环境是给A建立了B的synonym。
解决方法:
1、获取创建该函数的DDL语句,在新环境中直接创建该function
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SQL> set long 999SQL> select dbms_metadata.get_ddl('FUNCTION','WM_CONCAT','TBCS') from dual;DBMS_METADATA.GET_DDL('FUNCTION','WM_CONCAT','TBCS')--------------------------------------------------------------------------------CREATE OR REPLACE EDITIONABLE FUNCTION "TBCS"."WM_CONCAT" (P1 VARCHAR2)RETURN clob AGGREGATE USING WM_CONCAT_IMPL; |
执行DDL语句
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SQL> CREATE OR REPLACE EDITIONABLE FUNCTION "AOPEN"."WM_CONCAT" (P1 VARCHAR2) RETURN clob AGGREGATE USING WM_CONCAT_IMPL; 2 /Warning: Function created with compilation errors.SQL> |
此操作后,明显报错了,让业务测试,肯定测不过,查看函数是无效的
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SQL> select OWNER,OBJECT_NAME,SUBOBJECT_NAME,OBJECT_TYPE,LAST_DDL_TIME from dba_objects where object_name=upper('wm_concat') ;OWNER OBJECT_NAME SUBOBJECT_NAME OBJECT_TYPE LAST_DDL_TIME-------------------- ------------------------------ ------------------------------ ----------------------- ---------------A WM_CONCAT FUNCTION 20191121 172355SQL> |
2、导出function在导入新环境
由于第一种方法不行,故考虑第二种方法,把老环境B用户的wm_concat函数迁移到新环境,测试可行否
导出function
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expdp \'/ as sysdba \' directory=expdp_2019 dumpfile=function_wm_concat_20191121.dmp logfile=function_wm_concat_expdp_20191121.log schemas=B include=function:\"IN \'WM_CONCAT\'\"Export: Release 12.1.0.2.0 - Production on Thu Nov 21 17:46:38 2019Copyright (c) 1982, 2014, Oracle and/or its affiliates. All rights reserved.Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit ProductionWith the Partitioning, Automatic Storage Management, OLAP, Advanced Analyticsand Real Application Testing optionsStarting "SYS"."SYS_EXPORT_SCHEMA_02": "/******** AS SYSDBA" directory=expdp_2019 dumpfile=function_wm_concat_20191121.dmp logfile=function_wm_concat_expdp_20191121.log schemas=B include=function:"IN 'WM_CONCAT'" Estimate in progress using BLOCKS method...Total estimation using BLOCKS method: 0 KBProcessing object type SCHEMA_EXPORT/FUNCTION/FUNCTIONProcessing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTIONMaster table "SYS"."SYS_EXPORT_SCHEMA_02" successfully loaded/unloaded******************************************************************************Dump file set for SYS.SYS_EXPORT_SCHEMA_02 is: /ora12c/oracle/dir_dump/function_wm_concat_20191121.dmpJob "SYS"."SYS_EXPORT_SCHEMA_02" successfully completed at Thu Nov 21 17:47:27 2019 elapsed 0 00:00:47 |
导入新环境,使用户转换,由B转换为A
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impdp \'/ as sysdba \' directory=DIR_DUMP dumpfile=function_wm_concat_20191121.dmp logfile=function_wm_concat_impdp_20191121.log remap_schema=B:AImport: Release 12.1.0.2.0 - Production on Thu Nov 21 17:48:53 2019Copyright (c) 1982, 2014, Oracle and/or its affiliates. All rights reserved.Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit ProductionWith the Partitioning, Automatic Storage Management, OLAP, Advanced Analyticsand Real Application Testing optionsMaster table "SYS"."SYS_IMPORT_FULL_01" successfully loaded/unloadedStarting "SYS"."SYS_IMPORT_FULL_01": "/******** AS SYSDBA" directory=DIR_DUMP dumpfile=function_wm_concat_20191121.dmp logfile=function_wm_concat_impdp_20191121.log remap_schema=B:AProcessing object type SCHEMA_EXPORT/FUNCTION/FUNCTIONProcessing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTIONORA-39082: Object type FUNCTION:"AOPEN"."WM_CONCAT" created with compilation warningsJob "SYS"."SYS_IMPORT_FULL_01" completed with 1 error(s) at Thu Nov 21 17:49:00 2019 elapsed 0 00:00:05 |
查看函数状态,依旧invalid
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SQL> select owner,object_name,object_type ,status from dba_objects where owner not in('SYS', 'SYSTEM') AND status != 'VALID' ;OWNER OBJECT_NAME OBJECT_TYPE STATUS------------------------------ ------------------------------ ----------------------- -------A WM_CONCAT FUNCTION INVALID |
3、手工创建该函数
考虑到第一种方法只是创建了function,而包体等内容并没有创建,故手工创建package、body、function
a、以sys用户创建包、包体、函数
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CREATE OR REPLACE TYPE WM_CONCAT_IMPL AS OBJECT(CURR_STR VARCHAR2(32767), STATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT WM_CONCAT_IMPL) RETURN NUMBER,MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT WM_CONCAT_IMPL,P1 IN VARCHAR2) RETURN NUMBER,MEMBER FUNCTION ODCIAGGREGATETERMINATE(SELF IN WM_CONCAT_IMPL,RETURNVALUE OUT VARCHAR2,FLAGS IN NUMBER)RETURN NUMBER,MEMBER FUNCTION ODCIAGGREGATEMERGE(SELF IN OUT WM_CONCAT_IMPL,SCTX2 IN WM_CONCAT_IMPL) RETURN NUMBER); |
b、创建类型body
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CREATE OR REPLACE TYPE BODY WM_CONCAT_IMPLISSTATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT WM_CONCAT_IMPL)RETURN NUMBERISBEGINSCTX := WM_CONCAT_IMPL(NULL) ;RETURN ODCICONST.SUCCESS;END;MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT WM_CONCAT_IMPL,P1 IN VARCHAR2)RETURN NUMBERISBEGINIF(CURR_STR IS NOT NULL) THENCURR_STR := CURR_STR || ',' || P1;ELSECURR_STR := P1;END IF;RETURN ODCICONST.SUCCESS;END;MEMBER FUNCTION ODCIAGGREGATETERMINATE(SELF IN WM_CONCAT_IMPL,RETURNVALUE OUT VARCHAR2,FLAGS IN NUMBER)RETURN NUMBERISBEGINRETURNVALUE := CURR_STR ;RETURN ODCICONST.SUCCESS;END;MEMBER FUNCTION ODCIAGGREGATEMERGE(SELF IN OUT WM_CONCAT_IMPL,SCTX2 IN WM_CONCAT_IMPL)RETURN NUMBERISBEGINIF(SCTX2.CURR_STR IS NOT NULL) THENSELF.CURR_STR := SELF.CURR_STR || ',' || SCTX2.CURR_STR ;END IF;RETURN ODCICONST.SUCCESS;END;END; |
c、创建函数
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CREATE OR REPLACE FUNCTION wm_concat(P1 VARCHAR2) RETURN VARCHAR2 AGGREGATE USING WM_CONCAT_IMPL ; |
d、创建同义词并授权
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create public synonym WM_CONCAT_IMPL for sys.WM_CONCAT_IMPLcreate public synonym wm_concat for sys.wm_concatgrant execute on WM_CONCAT_IMPL to publicgrant execute on wm_concat to public |
然后查看function状态,正常状态。至此问题解决。
总结
1、从网上找资料了解到,11gr2和12C上已经摒弃了wm_concat函数,而应用在程序中确使用了该函数,导致程序出现错误,为了减轻程序员修改程序的工作量,只有通过手工创建个wm_concat函数,来临时解决该问题,但是注意,及时创建了该函数,在使用的过程中,也需要用to_char(wm_concat())方式,才能完全替代之前的应用。
2、也查到了说VMSYS用户下有该函数,但是默认该用户是锁定的,此次问题我也解锁了VMSYS用户,但是并无该function
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SQL> alter user WMSYS account unlock;User altered.SQL> select owner,object_name,object_type from dba_objects where owner='WMSYS' and object_type ='FUNCTION';no rows selected |
3、手工重建,保留脚本以后出现类似问题可以很快速重建。
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