On 06.09.2013 18:30, Dominique Devienne wrote:
On Fri, Sep 6, 2013 at 5:41 PM, ibrahim <ibrahim.a...@googlemail.com> wrote:
You can let sqlite handle the creation of a temporary table by :
update t1 set seq=seq+1 where pk in (select pk from t1 where seq >= 3
order by seq desc) ;
afterwards you can insert.
Unless I'm misunderstanding you, I already tried that in an earlier post of
this thread, and that didn't work. Give it a try. --DD
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Perhaps you should really try it out cause my suggestion is totally
different from yours it uses a temporary table it works.
create table t1 (pk integer primary key, name text, seq integer) ;
insert into t1 (pk, name, seq) values (1, "blue", 1) ;
insert into t1 (pk, name, seq) values (2, "blue", 2) ;
insert into t1 (pk, name, seq) values (3, "blue", 3) ;
insert into t1 (pk, name, seq) values (4, "blue", 4) ;
insert into t1 (pk, name, seq) values (5, "blue", 5) ;
sqlite> select * from t1 ;
1|blue|1
2|blue|2
3|blue|3
4|blue|4
5|blue|5
sqlite> update t1 set seq=seq+1 where pk in (select pk from t1 where seq
>= 3 order by seq desc) ;
sqlite> select * from t1 ;
1|blue|1
2|blue|2
3|blue|4
4|blue|5
5|blue|6
sqlite> insert into t1 (pk, name, seq) values (6, 'blue', 3) ;
sqlite> select * from t1 ;
1|blue|1
2|blue|2
3|blue|4
4|blue|5
5|blue|6
6|blue|3
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