-- 設(shè)置實例
export ORACLE_SID=test1

--首先使用dba賬號登錄oracle數(shù)據(jù)庫
sqlplus / as sysdba

--解鎖wmsys用戶
alter user wmsys account unlock;
 
--并為wmsys用戶授權(quán)，可根據(jù)需要授權(quán)，不建議授權(quán)所有權(quán)限
grant all privileges to wmsys;
 
--如果不知道wmsys用戶的密碼，可以修改其密碼
alter user wmsys identified by 123456;

-- 切換到pdb
alter session set container=xxx;

--并為wmsys用戶授權(quán)，可根據(jù)需要授權(quán)，不建議授權(quán)所有權(quán)限
grant all privileges to wmsys;

--使用wmsys用戶登錄數(shù)據(jù)庫
conn wmsys/123456

-- 切換到pdb，（必須在pdb中創(chuàng)建函數(shù)）
alter session set container=xxx;

--在wmsys下創(chuàng)建可用的wm_concat函數(shù)，直接執(zhí)行以下語句
--定義類型
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
);
/
 
--定義類型body:
CREATE OR REPLACE TYPE BODY WM_CONCAT_IMPL
IS
STATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT WM_CONCAT_IMPL)
RETURN NUMBER
IS
BEGIN
SCTX := WM_CONCAT_IMPL(NULL) ;
RETURN ODCICONST.SUCCESS;
END;
MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT WM_CONCAT_IMPL,
P1 IN VARCHAR2)
RETURN NUMBER
IS
BEGIN
IF(CURR_STR IS NOT NULL) THEN
CURR_STR := CURR_STR || ',' || P1;
ELSE
CURR_STR := P1;
END IF;
RETURN ODCICONST.SUCCESS;
END;
MEMBER FUNCTION ODCIAGGREGATETERMINATE(SELF IN WM_CONCAT_IMPL,
RETURNVALUE OUT VARCHAR2,
FLAGS IN NUMBER)
RETURN NUMBER
IS
BEGIN
RETURNVALUE := CURR_STR ;
RETURN ODCICONST.SUCCESS;
END;
MEMBER FUNCTION ODCIAGGREGATEMERGE(SELF IN OUT WM_CONCAT_IMPL,
SCTX2 IN WM_CONCAT_IMPL)
RETURN NUMBER
IS
BEGIN
IF(SCTX2.CURR_STR IS NOT NULL) THEN
SELF.CURR_STR := SELF.CURR_STR || ',' || SCTX2.CURR_STR ;
END IF;
RETURN ODCICONST.SUCCESS;
END;
END;
/
--自定義行變列函數(shù):
CREATE OR REPLACE FUNCTION wm_concat(P1 VARCHAR2)
RETURN VARCHAR2 AGGREGATE USING WM_CONCAT_IMPL ;
/

--創(chuàng)建完成，給其創(chuàng)建同義詞及授權(quán)，以供其他用戶能正常使用。
create public synonym WM_CONCAT_IMPL for wmsys.WM_CONCAT_IMPL
/
create public synonym wm_concat for wmsys.wm_concat
/
grant execute on WM_CONCAT_IMPL to public
/
grant execute on wm_concat to public
/

@?/rdbms/admin/owmctab.plb
@?/rdbms/admin/owmaggrs.plb
@?/rdbms/admin/owmaggrb.plb