我的甲骨文版本是 10.2。我有一个用户定义的聚合函数,它使用这样的对象:
create type strcat_type as object (
cat_string varchar2(4000),
static function ODCIAggregateInitialize(cs_ctx In Out strcat_type) return number,
member function ODCIAggregateIterate(self In Out strcat_type,value in varchar2) return
number,
member function ODCIAggregateMerge(self In Out strcat_type,ctx2 In Out strcat_type)
return number,
member function ODCIAggregateTerminate(self In Out strcat_type,returnValue Out
varchar2,flags in number) return number
)
但是当我试图把这个对象放在一个包里时,
create or replace package common is
type strcat_type as object (
cat_string varchar2(4000),
static function ODCIAggregateInitialize(cs_ctx In Out strcat_type) return number,
member function ODCIAggregateIterate(self In Out strcat_type,value in varchar2) return
number,
member function ODCIAggregateMerge(self In Out strcat_type,ctx2 In Out strcat_type)
return number,
member function ODCIAggregateTerminate(self In Out strcat_type,returnValue Out
varchar2,flags in number) return number
)
end common;
它导致 pls-00540,pls-00707,我如何使用这个对象创建一个包?以及如何将我的类型体和所有这些静态和成员函数放在包体中?
我的类型是这样的:
create type body strcat_type is
static function ODCIAggregateInitialize(cs_ctx IN OUT strcat_type) return number
is
begin
cs_ctx := strcat_type( null );
return ODCIConst.Success;
end;
member function ODCIAggregateIterate(self IN OUT strcat_type,
value IN varchar2 )
return number
is
begin
self.cat_string := self.cat_string || ','|| value;
return ODCIConst.Success;
end;
member function ODCIAggregateTerminate(self IN Out strcat_type,
returnValue OUT varchar2,
flags IN number)
return number
is
begin
returnValue := ltrim(rtrim(self.cat_string,','),',');
return ODCIConst.Success;
end;
member function ODCIAggregateMerge(self IN OUT strcat_type,
ctx2 IN Out strcat_type)
return number
is
begin
self.cat_string := self.cat_string || ',' || ctx2.cat_string;
return ODCIConst.Success;
end;
end;
我的功能是这样的:
CREATE or replace
FUNCTION strcat(input varchar2 )
RETURN varchar2
PARALLEL_ENABLE AGGREGATE USING strcat_type;
如何将所有这些打包到一个包中,当我需要聚合时,我只需输入“common.strcat(colName)”?