[Anônimo]

Galera, estou precisando fazer uma busca no oracle 9i onde os itens existentes na pesquisa devem vir posicionados na coluna. Por exemplo:

select nome, tipo from clientes where cidade = xx

como resposta preciso obter:

joao fisica maria fisica bretas juridica

existe algum comando que faz esta invers?o?

Rog?rio

[vanessa mortago amato]

Rogerio,

Voce pode fazer o seguinte:

1 . Criar o type string_agg_type
[spoiler]create or replace type string_agg_type as object ( total varchar2(4000),
static function
ODCIAggregateInitialize(sctx IN OUT string_agg_type )
return number,
member function
ODCIAggregateIterate(self IN OUT string_agg_type ,
value IN varchar2 )
return number,
member function
ODCIAggregateTerminate(self IN string_agg_type,
returnValue OUT varchar2,
flags IN number)
return number,
member function
ODCIAggregateMerge(self IN OUT string_agg_type,
ctx2 IN string_agg_type)
return number
);
/

Type created.

create or replace type body string_agg_type
is

static function ODCIAggregateInitialize(sctx IN OUT string_agg_type)
return number
is
begin
sctx := string_agg_type( null );
return ODCIConst.Success;
end;

member function ODCIAggregateIterate(self IN OUT string_agg_type,
value IN varchar2 )
return number
is
begin
self.total := self.total || ‘,’ || value;
return ODCIConst.Success;
end;

member function ODCIAggregateTerminate(self IN string_agg_type,
returnValue OUT varchar2,
flags IN number)
return number
is
begin
returnValue := ltrim(self.total,’,’);
return ODCIConst.Success;
end;

member function ODCIAggregateMerge(self IN OUT string_agg_type,
ctx2 IN string_agg_type)
return number
is
begin
self.total := self.total || ctx2.total;
return ODCIConst.Success;
end;

end;
/

Type body created.[/spoiler]

1. Criar a função para fazer a agregação:
   [spoiler]CREATE or replace
   FUNCTION stragg(input varchar2 )
   RETURN varchar2
   PARALLEL_ENABLE AGGREGATE USING string_agg_type;
   /

Function created.
[/spoiler]

3.Usar a funçao:
select stragg(nome||’ ‘||tipo) from clientes where cidade=xx;

Essa dica eu peguei no site do AskTom. Achei muito bacana.

Boa sorte,
Vanessa

[vanessa mortago amato]

Rogerio,

Voce pode fazer o seguinte:

1 . Criar o type string_agg_type
[spoiler]create or replace type string_agg_type as object ( total varchar2(4000),
static function
ODCIAggregateInitialize(sctx IN OUT string_agg_type )
return number,
member function
ODCIAggregateIterate(self IN OUT string_agg_type ,
value IN varchar2 )
return number,
member function
ODCIAggregateTerminate(self IN string_agg_type,
returnValue OUT varchar2,
flags IN number)
return number,
member function
ODCIAggregateMerge(self IN OUT string_agg_type,
ctx2 IN string_agg_type)
return number
);
/

Type created.

create or replace type body string_agg_type
is

static function ODCIAggregateInitialize(sctx IN OUT string_agg_type)
return number
is
begin
sctx := string_agg_type( null );
return ODCIConst.Success;
end;

member function ODCIAggregateIterate(self IN OUT string_agg_type,
value IN varchar2 )
return number
is
begin
self.total := self.total || ‘,’ || value;
return ODCIConst.Success;
end;

member function ODCIAggregateTerminate(self IN string_agg_type,
returnValue OUT varchar2,
flags IN number)
return number
is
begin
returnValue := ltrim(self.total,’,’);
return ODCIConst.Success;
end;

member function ODCIAggregateMerge(self IN OUT string_agg_type,
ctx2 IN string_agg_type)
return number
is
begin
self.total := self.total || ctx2.total;
return ODCIConst.Success;
end;

end;
/

Type body created.[/spoiler]

2. Criar a função para fazer a agregação:
[spoiler]CREATE or replace
FUNCTION stragg(input varchar2 )
RETURN varchar2
PARALLEL_ENABLE AGGREGATE USING string_agg_type;
/

Function created.
[/spoiler]

3.Usar a funçao:
select stragg(nome||’ ‘||tipo) from clientes where cidade=xx;

Essa dica eu peguei no site do AskTom. Achei muito bacana.

Boa sorte,
Vanessa

[Autor]

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