Database Discussion Boards

Fz Rmn18-Jan-07 14:10

18-Jan-07 14:10

Hello,
I had been running my application on Windows XP. It uses Jet 4.0 engine for database connection.

Now in my new system, I have installed Windows XP(sp2)which comes with MDAC 2.8 and it doesn't contain Jet engine. MDAC 2.5 is the last version that comes with Jet and the later versions do not.
I've tried but I can't install Jet or MDAC 2.5 as MDAC 2.8 is already installed with windows xp. I've installed office 2003 but Jet won't install with it.

How can I get Jet engine?
or
what is the alternate to JET engine in MDAC 2.8. can I just change the provider and keep my application working?

-- modified at 20:15 Thursday 18th January, 2007

Re: Jet 4.0 engine in MDAC

Mike Dimmick19-Jan-07 2:54

Mike Dimmick

19-Jan-07 2:54

The Jet 4.0 engine is part of the operating system from Windows 2000 onward. Because of this, you have to apply an OS hotfix to upgrade it. For information on getting the latest version, see this KB article (239114)[^].

Stability. What an interesting concept. -- Chris Maunder

Extracting Numeric values from a varchar field

Adam °Wimsatt18-Jan-07 5:41

Adam °Wimsatt

18-Jan-07 5:41

I'm trying to standardize the phone number format for some historical records. The phone numbers have been entered in different formats in the past. I would like to extract just the numerical characters from the old phone numbers so I can reformat them into an xxx.xxx.xxxx format. I've looked into using the Replace and Substring functions, but I was hoping an easier solution existed.

Re: Extracting Numeric values from a varchar field

Adam °Wimsatt18-Jan-07 6:12

Adam °Wimsatt

18-Jan-07 6:12

I found a solution using code provided on this site:

http://www.vsj.co.uk/articles/display.asp?id=540[^]

Here is a Scalar-valued SQL Function to do the job:

<br />
SET ANSI_NULLS ON<br />
GO<br />
SET QUOTED_IDENTIFIER ON<br />
GO<br />
CREATE FUNCTION RemoveNonNumerics <br />
(<br />
	-- Add the parameters for the function here<br />
	@sInputValue varchar(24)<br />
)<br />
RETURNS varchar(24)<br />
AS<br />
BEGIN<br />
	-- Declare the return variable here<br />
	DECLARE @Result varchar(24)<br />
<br />
	-- Add the T-SQL statements to compute the return value here<br />
	SELECT @Result = @sInputValue<br />
<br />
	-- Remove non-numeric characters<br />
	declare @i INT<br />
	select @i = 25<br />
	while @i > 0<br />
	begin<br />
		SELECT @i = patindex('%[^0-9]%',@Result)<br />
		SELECT @Result = replace(@Result,substring(@Result,@i,1),'')<br />
	end<br />
<br />
	-- Return the result of the function<br />
	RETURN @Result<br />
<br />
END<br />
GO<br />

sql server 2000

sivaajith18-Jan-07 1:30

sivaajith

18-Jan-07 1:30

hai,

How we able to add extra 15 minutes to a already existing date time data type column in sql server

thanks and regards,
Siva

Sivakumar

Re: sql server 2000

Pete O'Hanlon18-Jan-07 1:44

Pete O'Hanlon

18-Jan-07 1:44

With DateAdd.

DateAdd(15, mi, @date)

the last thing I want to see is some pasty-faced geek with skin so pale that it's almost translucent trying to bump parts with a partner - John Simmons / outlaw programmer

Deja View - the feeling that you've seen this post before.

Re: sql server 2000

sivaajith18-Jan-07 1:48

sivaajith

18-Jan-07 1:48

thanks a lot

Sivakumar

very urgent pls help me about concurrency in ADO.Net

Vinay Dornala18-Jan-07 1:02

Vinay Dornala

18-Jan-07 1:02

hi all,

I have written one StoredProcedure that select Data from Table

in ADO.Net i have taken transaction object like below

Sqltransaction tran = con.Transaction
tran.BeginTransaction

Where should i maintain transactions in ADO.Net code in Sql Server stored Procedure using Begintransaction end Transaction

pls give clarify my doubt , where I can maintain and pls distinghish both transaction situations

i will be looking 4 u r reply

Thanks in Advance

Have a Nice Day

Re: very urgent pls help me about concurrency in ADO.Net

Vinay Dornala18-Jan-07 1:15

Vinay Dornala

18-Jan-07 1:15

Re: very urgent pls help me about concurrency in ADO.Net

ed^nrgc18-Jan-07 2:14

ed^nrgc

18-Jan-07 2:14

Why do you need a transaction for a simple select?

What about adding (nolock)?

Re: very urgent pls help me about concurrency in ADO.Net

Rob Graham18-Jan-07 3:48

Rob Graham

18-Jan-07 3:48

The choice as to where to maintain the transactions depends on your usage, but a good guideline is never mix the two. If yo choose to put transactions in your SPs, then DON'T put them in the application code as well.
IMO, keepeng the transaction management in the application code is more flexible, and allows use of distributed transactions (should they ever be needed) more gracefully. It also allows transaction scope to span multiple SP's if needed.
Note that transactions are rarely (if ever) needed for Select statements, but should generally be used for data modification statements (Insert, Update).

Re: very urgent pls help me about concurrency in ADO.Net

Mike Dimmick19-Jan-07 6:34

Mike Dimmick

19-Jan-07 6:34

The point of a transaction is to give consistency across multiple operations. If you need that consistency within a stored procedure, use BEGIN TRANSACTION/COMMIT TRANSACTION/ROLLBACK TRANSACTION in the stored procedure text. If you need that consistency across multiple calls from the client application, use the SqlTransaction object.

I personally favour consolidating as many basic operations as possible, that are directly related, into a single stored procedure or query batch, in order to avoid being 'chatty' with the database (and incurring a lot of network latency). Therefore I very rarely use SqlTransaction objects.

Stability. What an interesting concept. -- Chris Maunder

PavanPareta18-Jan-07 0:40

PavanPareta

18-Jan-07 0:40

can some body let me know what is the main diffrence between SQL function and Store Procedure.

Cool | :cool:

Pavan Pareta

Re: hi

ed^nrgc18-Jan-07 2:14

ed^nrgc

18-Jan-07 2:14

1. out params

Re: hi

M.H.1.2.318-Jan-07 10:28

M.H.1.2.3

18-Jan-07 10:28

1.stored procedures allow default values for parameters user defined functions do not.
2.stored procedures allow you to use temp tables user defined functions only allow table variables.
3.you can use table valued user defined functions for normal table functionality such as joins, select *, etc. which can be useful sometimes.
4.both have cached execution plans.

In general I would suggest to use procedures when you can and function only when a procedure won't do the job, just because it seems that functions could allow you to kill your performance when used in where clauses on queries with alot of rows, or even if used in select list on queries with alot of rows. Also functions calling functions makes sense to an application developer but doing something like that in your databse functions may be tempting, but imho is a bad idea.

Re: hi

PavanPareta18-Jan-07 17:35

PavanPareta

18-Jan-07 17:35

Thanks M.H.1.2.3,
thanks for Solution...
Rose | [Rose]

Pavan Pareta

Copy data from datatable to SqlServer table

Member 368588918-Jan-07 0:05

Member 3685889

18-Jan-07 0:05

Hi,

Can anyone help me with the code to copy data from datatable to SqlServer table. Please dont use the SqlBulkCopy technique as i am working in .net 1.1 which does not support that. Give me the code to copy the rows in datatable one by one to database.

Thanks in advance...

Usha

Re: Copy data from datatable to SqlServer table

ed^nrgc18-Jan-07 2:17

ed^nrgc

18-Jan-07 2:17

Use DTS.

ANY operator in SQL Server

Uma Kameswari17-Jan-07 23:23

Uma Kameswari

17-Jan-07 23:23

Hi,
Again I am back with ANY operator Smile | :)

can anyone give me an example of how to use any operator in sql server?

Regards,
Uma

Re: ANY operator in SQL Server

Pete O'Hanlon18-Jan-07 0:22

Pete O'Hanlon

18-Jan-07 0:22

SELECT Col1, Col2, Col3
FROM TABLE1 WHERE
Col4 >= ANY
( SELECT Col1 FROM TABLE2 WHERE DateAdded >= '21-Oct-2006')

handling database records

rahulpasupuleti17-Jan-07 22:16

rahulpasupuleti

17-Jan-07 22:16

Hi there.i have two button controls on my UI of a web application.i name them as 'previous' and 'next'.when i click on 'previous',i should be able to go to the previous record and when i click the 'next' button,i should be able to go to the next record in an sql server database.i also have two buttons for adding and editing records in a dataset.can i get help in writing code in c# preferably.

thanks.

Re: handling database records

Vinay Dornala17-Jan-07 22:45

Vinay Dornala

17-Jan-07 22:45

hi
use BindingContextConcept and try with this code.Ihope will help for u r requirement and give replay

write in nextbutton_click event

this.BindingContext("nameofDataSet","NameofTable").position= this.bindingContext("NameofDataset","nameoftable").position+1;

this is for prevbutton_click event

this.BindingContext("nameofDataSet","NameofTable").position= this.bindingContext("NameofDataset","nameoftable").position-1;

if the record cursor reaches first record then u can disabl prev and same for next

Have a nice day

Re: handling database records

rahulpasupuleti18-Jan-07 0:29

rahulpasupuleti

18-Jan-07 0:29

thank u very much.i had also mentioned about adding and editing records.i tried with controlname.databindings.add.but thats not working since i am implementing in a webapplication and that method only seems to work for windows forms.can i get any help in this?

thanks in advance.

about Transactions

Vinay Dornala17-Jan-07 18:15

Vinay Dornala

17-Jan-07 18:15

Hi All,

Can we have nested Transcations means one transaction within other ;

what is the difference between rollback Transaction and rollback work in sql

Pls give clarification

WINNING IS NOT OUR DREAM, IT'S A HABIT,

HAVE A NICE DAY

Re: about Transactions

Pete O'Hanlon18-Jan-07 0:29

Pete O'Hanlon

18-Jan-07 0:29

You can nest transactions and roll them back using ROLLBACK TRANSACTION. ROLLBACK WORK rolls the transaction back to the top (and sets the transaction count back to 0) regardless of which level of nested transaction you are in.

begin transaction TopTransaction
update table1 where tblid = @id
save transaction innerTransaction
update table2 where tblid = @id
rollback transaction innerTransaction
commit transaction

In this example, the changes to table1 are saved and table2 changes are rolled back.

begin transaction TopTransaction
update table1 where tblid = @id
save transaction innerTransaction
update table2 where tblid = @id
rollback work

In this example, both transactions are rolled back because the rollback work command has been issued.

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