On 10 January 2011 14:22, smart sl <[email protected]> wrote:
> Is there any one can help?

SQLite version 3.6.11
Enter ".help" for instructions
sqlite>
sqlite> create table tst( data integer );
sqlite>
sqlite> insert into tst values( 1 );
sqlite> insert into tst values( 2 );
sqlite> insert into tst values( 3 );
sqlite> insert into tst values( 2 );
sqlite>
sqlite> select group_concat( d, '-' ) from ( select distinct data d from tst );
1-2-3
sqlite>

>
> 2011/1/7 smart sl <[email protected]>
>
>> In "Aggregate Functions" of SQLite Docs, it's said that:
>> In any aggregate function that takes a single argument, that argument can
>> be preceded by the keyword DISTINCT.
>>
>> Then how about two arguments circumstance when I want to use distinct and
>> together with specified separator. Is there a way to do that?
>>
>> I'm using SQLite 3.7.3 in tcl. Thanks advance.
>>

Regards,
Simon
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