customized order by

I would like to some how customize my order by clause such that data gets
ordered in a very specific manner.
Please consider the following ddl
set nocount on
go
create table z_my_tbl_del
( i int,
n char(8)
)
go
insert z_my_tbl_del values(1,'aaa')
insert z_my_tbl_del values(1,'aaa')
insert z_my_tbl_del values(2,'bbb')
insert z_my_tbl_del values(2,'bbb')
insert z_my_tbl_del values(3,'ccc')
insert z_my_tbl_del values(3,'ccc')
insert z_my_tbl_del values(4,'ddd')
insert z_my_tbl_del values(4,'ddd')
insert z_my_tbl_del values(5,'eee')
insert z_my_tbl_del values(5,'eee')
go
select * from z_my_tbl_del
/*
/*
i n
-- --
1 aaa
1 aaa
2 bbb
2 bbb
3 ccc
3 ccc
4 ddd
4 ddd
5 eee
5 eee
*/
*/
go
drop table z_my_tbl_del
go
How can I write order by clause such that it orders by bbb first, then ddd
and then it would sort rest of the items regularly.
Please let me know if there is a way of doing it.
TIA...
/*
i n
-- --
2 bbb
2 bbb
4 ddd
4 ddd
1 aaa
1 aaa
3 ccc
3 ccc
5 eee
5 eee
*/ORDER BY CASE n WHEN 'bbb' THEN 1 WHEN 'ddd' THEN 2 ELSE 3 END, i
"sqlster" <trisha@.nospam.nospam> wrote in message
news:9524A826-4A16-4AED-A0E1-F7A4D9AAF4B2@.microsoft.com...
>I would like to some how customize my order by clause such that data gets
> ordered in a very specific manner.
> Please consider the following ddl
> set nocount on
> go
> create table z_my_tbl_del
> ( i int,
> n char(8)
> )
> go
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(5,'eee')
> insert z_my_tbl_del values(5,'eee')
> go
> select * from z_my_tbl_del
> /*
> /*
> i n
> -- --
> 1 aaa
> 1 aaa
> 2 bbb
> 2 bbb
> 3 ccc
> 3 ccc
> 4 ddd
> 4 ddd
> 5 eee
> 5 eee
> */
> */
> go
> drop table z_my_tbl_del
> go
> How can I write order by clause such that it orders by bbb first, then ddd
> and then it would sort rest of the items regularly.
> Please let me know if there is a way of doing it.
> TIA...
> /*
> i n
> -- --
> 2 bbb
> 2 bbb
> 4 ddd
> 4 ddd
> 1 aaa
> 1 aaa
> 3 ccc
> 3 ccc
> 5 eee
> 5 eee
> */
>|||Basically, you want 2 levels of ordering with the first level consisting of
an expression that evaluates 'bbb' and 'ddd' at the top of the list.
Modify your query like so:
select
*
from
#z_my_tbl_del
order by
case n
when 'bbb' then 1
when 'ddd' then 2
else 3
end,
n
"sqlster" <trisha@.nospam.nospam> wrote in message
news:9524A826-4A16-4AED-A0E1-F7A4D9AAF4B2@.microsoft.com...
>I would like to some how customize my order by clause such that data gets
> ordered in a very specific manner.
> Please consider the following ddl
> set nocount on
> go
> create table z_my_tbl_del
> ( i int,
> n char(8)
> )
> go
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(5,'eee')
> insert z_my_tbl_del values(5,'eee')
> go
> select * from z_my_tbl_del
> /*
> /*
> i n
> -- --
> 1 aaa
> 1 aaa
> 2 bbb
> 2 bbb
> 3 ccc
> 3 ccc
> 4 ddd
> 4 ddd
> 5 eee
> 5 eee
> */
> */
> go
> drop table z_my_tbl_del
> go
> How can I write order by clause such that it orders by bbb first, then ddd
> and then it would sort rest of the items regularly.
> Please let me know if there is a way of doing it.
> TIA...
> /*
> i n
> -- --
> 2 bbb
> 2 bbb
> 4 ddd
> 4 ddd
> 1 aaa
> 1 aaa
> 3 ccc
> 3 ccc
> 5 eee
> 5 eee
> */
>|||1) use table for the ordering
CREATE TABLE SpecialSort
(sort_order INTEGER NOT NULL,
n CHAR(3) NOT NULL);
INSERT INTO S.sort_order VALUES (1, 'bbb');
INSERT INTO S.sort_order VALUES (2, 'ddd');
INSERT INTO S.sort_order VALUES (3, 'aaa');
etc.
SELECT F.*, S.sort_order
FROM Foobar AS F, SpecialSort AS S
WHERE S.n = F.n
ORDER BY S.sort_order;
2) use a string
SELECT F.*, CHARINDEX (n, 'bbbdddaaaccceee') AS sort_order
FROM Foobar
ORDER BY sort_order;|||Why do you want to do this? Just one time? I would suggest that you add a
sort column to your actual table if you want to sort it differently
(especially since the client probably will want to change the sort
sometimes.) If it is just for certain reports, then implement a report sort
order table and you can then change the ordering at will.
create table sortOrder(
reportName varchar(10),
n varchar(8),
sortOrder int,
primary key (reportName, N),
unique (reportName, sortOrder)
)
insert into sortorder values('yours','bbb',1)
insert into sortorder values('yours','ddd',2)
select z_my_tbl_del.*
from z_my_tbl_del
left outer join sortorder
on z_my_tbl_del.n = sortOrder.n
and sortOrder.reportName = 'yours'
order by coalesce(sortorder.sortOrder,2000000000) asc, z_my_tbl_del.n
insert into sortorder values('yours','bbb',1)
insert into sortorder values('yours','ddd',2)
insert into sortorder values('mine','eee',1)
insert into sortorder values('mine','ddd',2)
insert into sortorder values('mine','aaa',3)
select z_my_tbl_del.*
from z_my_tbl_del
left outer join sortorder
on z_my_tbl_del.n = sortOrder.n
and sortOrder.reportName = 'mine'
order by coalesce(sortorder.sortOrder,2000000000) asc, z_my_tbl_del.n
----
Louis Davidson - http://spaces.msn.com/members/drsql/
SQL Server MVP
"sqlster" <trisha@.nospam.nospam> wrote in message
news:9524A826-4A16-4AED-A0E1-F7A4D9AAF4B2@.microsoft.com...
>I would like to some how customize my order by clause such that data gets
> ordered in a very specific manner.
> Please consider the following ddl
> set nocount on
> go
> create table z_my_tbl_del
> ( i int,
> n char(8)
> )
> go
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(1,'aaa')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(2,'bbb')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(3,'ccc')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(4,'ddd')
> insert z_my_tbl_del values(5,'eee')
> insert z_my_tbl_del values(5,'eee')
> go
> select * from z_my_tbl_del
> /*
> /*
> i n
> -- --
> 1 aaa
> 1 aaa
> 2 bbb
> 2 bbb
> 3 ccc
> 3 ccc
> 4 ddd
> 4 ddd
> 5 eee
> 5 eee
> */
> */
> go
> drop table z_my_tbl_del
> go
> How can I write order by clause such that it orders by bbb first, then ddd
> and then it would sort rest of the items regularly.
> Please let me know if there is a way of doing it.
> TIA...
> /*
> i n
> -- --
> 2 bbb
> 2 bbb
> 4 ddd
> 4 ddd
> 1 aaa
> 1 aaa
> 3 ccc
> 3 ccc
> 5 eee
> 5 eee
> */
>

Customize where clause c# (RDL)

We have may reports that need to customize the where clause based on
parameters entered by the end user. Is there a way to modify the RDL on the
fly in order to achieve this? I am using VS2005 and SQLServer 2005.
Example:
if user selects run report by week ending date the following line needs to
be used
"and we_dt between ? and ?
if the user selects the run the report by export date then the line changes
to:
"and export_dt between ? and ?You can handle this via expressions in the command text of the dataset.
It is much easier than modifying the RDL on the fly.
For example, you can use VB expressions in the command text to
something like this:
="SELECT field1, field2 FROM tblName WHERE " &
iif(Parameter!Param1.Value = something, "do between stuff", "don't do
between stuff")
Andy Potter|||We'll look into this, but what if the entire WHERE cluase needs to be modified?
Are there any good examples of people doing this? Either through changing
the RDL or passing the entire where clause into the report?
Thanks
"Potter" wrote:
> You can handle this via expressions in the command text of the dataset.
> It is much easier than modifying the RDL on the fly.
> For example, you can use VB expressions in the command text to
> something like this:
> ="SELECT field1, field2 FROM tblName WHERE " &
> iif(Parameter!Param1.Value = something, "do between stuff", "don't do
> between stuff")
> Andy Potter
>|||Using expressions, your entire command text is available for
manipulation. Just do something like this:
="SELECT field1, field2 FROM tblName " & iif(Parameter!Param1.Value ="all", "", "WHERE field=" & Parameter!Param1.Value )
Personally, I prefer this kind of logic in a stored procedure. I find
large expressions to handle string manipulation to be a bit unwieldy.
The other option to handle large string manipulation is the custom code
section of the report, which give you a little more flexibility as far
writing your string manipulation code.
Andy Potter