我的oracle版本是10.2。 我有一个user_defined聚合函数,它使用如下对象:
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
)
但是当我尝试将此对象放入包中时,
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;
它会导致pls-00540,pls-00707,如何使用这个对象创建一个包?如何将我的类型主体和所有那些静态和成员函数放在包体中?
我这样的体型:
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成一个包,当我需要聚合时,我只是把'common.strcat(colName)'?
答案 0 :(得分:1)
OBJECT类型是 SQL 对象(如表,索引......),它们不能在包中定义(就像你不会在包中定义索引或视图一样) )。
参见相关的SO问题:Possible to create Oracle Database object types inside of PL/SQL?