Database

Marek Grzenkowicz29-Nov-07 22:22

Marek Grzenkowicz

29-Nov-07 22:22

Try something like this:

set @str = 
' select AstId 
  from UserTable 
  where UserId = ''' + @UserId 
  + ''' and Password = ''' + @Password + ''''

veereshIndia29-Nov-07 22:27

veereshIndia

29-Nov-07 22:27

Hi,

Thanks sir.I got It.

Veeresh

i want to join this group

veereshIndia29-Nov-07 22:39

veereshIndia

29-Nov-07 22:39

Hi Sir,

Once again iam getting this error.Iam very new to Sql .Can please tel me
how to use single quotes in query.Also giv me some help to this query

Alter procedure LogProc
(
@UserId varchar(500),
@Password varchar(500)
)
as
declare @str1 varchar(500)
declare @str2 varchar(500)
set @str1 = ' select AstId from UserTable where UserId = ''' + @UserId + ''' and Password = ''' + @Password + ''''
exec (@str1);
set @str2=' select RoleId from AstProf where AstId = ' + @str1
exec(@str2);

exec LogProc 'veeresh','veeresh'

Iam getting this error

(1 row(s) affected)

Server: Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'select'.

i want to join this group

riyam hussain mm30-Nov-07 0:42

riyam hussain mm

30-Nov-07 0:42

Try the query within a bracket ()
while assigning it with set keyword.

i am not sure try it.

Joe29-Nov-07 22:30

29-Nov-07 22:30

veereshIndia wrote:
set @str='select AstId from UserTable where UserId='+@UserId+'and
Password='+@Password
exec (@str);

You can eliminate 'Set' and 'exec (@str)' statements by having the select query alone which will get the records of the appropriate user.

select AstID from userTable where userid = @userid and password = @password

Bulk Update Fails

Joe29-Nov-07 21:58

29-Nov-07 21:58

I am trying to run a bulk update on a table by picking up the IDs that I've populated onto a table variable based on some criteria.
The update just works fine if the number of records in the table variable are < = 1000.
When this number increases to 5000, the update does'nt work. When I try to debug my code, I get the message box stating "Error while executing 'A Batch Cmd' at line 0; Sql Error: 0 "The statement has been terminated."

On catching this execption I get the message

"Timeout expired.The Timeout period elasped prior to completion of the operation of the operation or the server is not responding.\r\n The statement has been terminated."

When I try to run the stored proc from the query analyzer, it keeps processing for a long time and that I've to manually stop the execution.

On trying to run the queries that I have in the stored proc individually did'nt yield me positive results either.

I've ensured that my stored proc meets the specifications listed here[^]

Can anyone throw some light on what can be tried to fix this?

Environment: VS 2005 Pro, Sql Server 2000

andyharman29-Nov-07 22:36

andyharman

29-Nov-07 22:36

Can you post some of the code up here so we can take a look?

Joe29-Nov-07 23:46

29-Nov-07 23:46

andyharman wrote:
Can you post some of the code up here

Yes,sure. The following lists the logic and flow of my proc.

.... Proc declarations go here ....

Begin Transaction

Declare @tblCategory Table (CategoryID BigInt)

Insert into @tblCategory(CategoryID)
Select A.CategoryID from Shop A Where ProductName = @pProdName

If exists(select categoryId from @tblCategory)
begin
  Declare @tblLocalities Table(CategoryID BigInt, LocalityID int)
  Insert into @tblLocalities (categoryid,localityid) 
  select B.CategoryID, B.localityId from ShopGroup B, Shop A
  where A.CategoryID = B.CategoryID and A.ProductName = @pProdName
  
  If @@rowcount > 0
  begin
     Update Shop Set Ranking = 2 where categoryID in 
     (select t.CategoryID from @tblLocalities t)
   end
end
If @@error > 0
Begin
  rollback transaction
end
else
begin
  commmit transaction
end

andyharman30-Nov-07 2:06

andyharman

30-Nov-07 2:06

I'm trying to understand what your code is trying to achieve. As far as I can work out, the following would do the same:
UPDATE Shop SET Ranking = 2
WHERE CategoryID in (
SELECT B.CategoryID
FROM Shop A
INNER JOIN ShopGroup B
ON A.CategoryID = B.CategoryID
WHERE A.ProductName = @pProdName
)
Is this any faster? How many rows does it update? What is the purpose of linking to "ShopGroup"?

The next step would probably to look at the indexes.

Regards
Andy

Mike Dimmick30-Nov-07 0:58

Mike Dimmick

30-Nov-07 0:58

Yes, inserting or updating a lot of records will take a lot of time, particularly if running other queries concurrently against the same records (which may temporarily block your updates due to locks). ADO.NET stops your application from being blocked forever by imposing a configurable command timeout, which you set in the SqlCommand's CommandTimeout property. It defaults to 30 seconds, so if your command takes more than 30 seconds to execute you get a SqlException.

Management Studio assumes you're more interested in the results than in a speedy response and doesn't time out.

DoEvents: Generating unexpected recursion since 1991

Joe30-Nov-07 1:23

Re: A recursive dilema???

30-Nov-07 1:23

Mike Dimmick wrote:
Yes, inserting or updating a lot of records will take a lot of time, particularly if running other queries concurrently against the same records

Thanks on your views Mike. I will now need to figure out a way to fine tune my proc.

Mike Dimmick wrote:
Management Studio assumes you're more interested in the results than in a speedy response and doesn't time out

Do we have any settings / system procs that will take care of the time-out issue in Sql Server 2000?

A recursive dilema???

AndyBrew7029-Nov-07 21:06

AndyBrew70

29-Nov-07 21:06

Hi All

Background
----------

I have a database table namely tblSection that stores sections that have parent child relationships e.g.

Section 1
|
|--Section 2
|
|--Section 3
| |
| |--Section 4
|
|--Section 5
|
Section 6

The column structure for this table is:

SectionGUID uniqueidentifier PK
ParentGUID uniqueidentifier ALLOW NULL
Title nvarchar(100)

So my root level records are anything where ParentGUID IS NULL and the remaining records can have variable levels of nested children.

My Problem
----------

So what would people suggest with regards handling this structure within SQL for example a typical request is to return all sections below a specific node within the hierarchy? Currently I deal with the scenarios I have by extracting all folders into a single System.Data.DataTable object and then traverse the tree within my code which is OK for certain types of process but now I am looking at more number crunching type processes that approach is slow and cumbersome Frown | :(

Thanks in advance

Andy

pmarfleet29-Nov-07 21:17

pmarfleet

29-Nov-07 21:17

In SQL Server 2005, you can use Common Table Expressions[^] to perform recursive operations.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: A recursive dilema???

AndyBrew7029-Nov-07 23:55

AndyBrew70

29-Nov-07 23:55

Hi
Unfortunately my client is on SQL 2000 so thats a no go, however I found this article during my investigations and with a bit of tweaking works a treat for me Smile | :)

http://www.vbforums.com/showthread.php?t=366078

sql,query very urgent

rameshdontagani29-Nov-07 19:14

rameshdontagani

29-Nov-07 19:14

hi,

in my database i have the two tables...

1)programs 2)reserved

in the programs...two fields 1)program id 2)maxseats................these details wil be entered by admin

in the reserved table two fileds ..1)PRogramid 2)status

my requirement is .. i need the available seats..means

if any body is intersted in any program...they wil select the program...then status becomes approved(1)..

then i need the o/p as available seats ..means if any body selects the program...then the maxseats should be decremented by 1...o/p should be the remaing seats..

Joe29-Nov-07 19:41

29-Nov-07 19:41

I sincerely hope that you are not asking for code. Let us know what you've tried and where is that you got stuck with.

beklo.com/rameshgoudd wrote:
Subject:Re: sql,query very urgent

I am afraid that you are going to be taken in for a chance. Unsure | :~

rameshdontagani29-Nov-07 19:44

rameshdontagani

29-Nov-07 19:44

hi,
'

i need to count how many seats are filled up ..and how many seats are there at to be filled..

i am unable to write the query for this yyar

Vasudevan Deepak Kumar29-Nov-07 19:54

Vasudevan Deepak Kumar

29-Nov-07 19:54

What prevents you from using a simple count(*) on the table with the where clause querying an appropriate approved status value?

Have you tried it first?

Vasudevan Deepak Kumar
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