Database

SQL Server 2000 Database backup

24-Apr-06 22:10

Krishnatv wrote:
how do i read data from log file when i failed to create a database in sql server.

What log file?

"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question."
--Charles Babbage (1791-1871)
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WDI24-Apr-06 20:30

WDI

24-Apr-06 20:30

I have a 5 gigabyte database .
I need to backup it everynight .How can i do it for new added data only?

Re: SQL Server 2000 Database backup

Colin Angus Mackay24-Apr-06 20:39

Re: SQL Server 2000 Database backup

24-Apr-06 20:39

Create an incremental backup.

NOTE: You should do one complete backup each week because it will be a hassle to restore the complete plus all those incrementals if you don't and your database gets broken.

Frank Kerrigan25-Apr-06 0:30

Frank Kerrigan

25-Apr-06 0:30

You extract all new data to a second db with DTS and backup that database. But you need a date to view which data has been changed. If data is changing on old data then you might have issues restoring the db from these incremential changes.

Look where you want to go not where you don't want to crash.

Bikers Bible

how do i know the reason to fail my table creation in sql server

Krishnatv24-Apr-06 19:51

Krishnatv

24-Apr-06 19:51

hi,
if i failed to create a table in sql server in my data base then it generate
any log file for me ?
or how do i know what is the error which is cause to fail my table creation.

krishna

Re: how do i know the reason to fail my table creation in sql server

Colin Angus Mackay24-Apr-06 20:36

Re: how do i know the reason to fail my table creation in sql server

24-Apr-06 20:36

Krishnatv wrote:
how do i know what is the error which is cause to fail my table creation.

SQL Server will give you an error message. That will tell you the reason it failed.

sathish s24-Apr-06 20:48

sathish s

24-Apr-06 20:48

SqlException from your front end will give those details.

Re: how do i know the reason to fail my table creation in sql server

Colin Angus Mackay24-Apr-06 22:09

Re: how do i know the reason to fail my table creation in sql server

24-Apr-06 22:09

That assumes he is using a .NET application to access the database - He didn't mention anything about .NET

sathish s24-Apr-06 23:17

sathish s

24-Apr-06 23:17

Ya, I dint read that properly. Frown | :(

How to transfer local data to SQL Server 7.0?

Rashar24-Apr-06 9:08

Rashar

24-Apr-06 9:08

Hello,

I have a vb.net project that allows me to locally store data into a database that I have created within visual studio 2005. I would like to have a button on my form that will export the data to SQL Server 7.0? How could I accomplish this?

Will I need to setup a DTS package on SQL Server 7.0 and then run scripts from VB.net to execute it or take the data in my local tables, and dump it into a text or xml file, then export it to SQL Server?

Any suggestions is greatly appreciated.

Rashar

Re: How to transfer local data to SQL Server 7.0?

Frank Kerrigan25-Apr-06 0:33

Frank Kerrigan

25-Apr-06 0:33

Is your local db SQL Server Express 2005 ?????

I'd use VB to update a temp table on SQL Server 7 with a time event and use a SQL V7 to sync the data.

Look where you want to go not where you don't want to crash.

Bikers Bible

Re: How to transfer local data to SQL Server 7.0?

Rashar25-Apr-06 4:08

Rashar

25-Apr-06 4:08

Correct. My local db is SQL Express 2005. Not sure what you mean by "update a temp table on SQL Server 7 with a time event " ... Do you mean that when I pass the data to my local data base, time stamp the data?

Thanks,

Rashar

how do i resolve DBConcurrencyException when inserting value that contains '[' character.

AfzalHassen24-Apr-06 3:06

AfzalHassen

24-Apr-06 3:06

Hi,

I am executing an inline (NOT a Stored Procedure) parameterised insert command using the SqlDataAdapter.Update(Dataset) command, but I keep getting a DBConcurrencyException when one of the parameters which is of the ntext datatype contains the following character '['. i would sincerely appreciate it if someone could tell me why this is causing this error to be raised by the SqlDataAdapter. Confused | :confused:

All the following special characters work fine when i do the insert.
>~!@#$%^&*()_+=-`{}|\:";',.<>?/ </codeeven the '<code>]' inserts fine into the SQL MSDE 2000 DB that i'm using. Confused | :confused:

Thanks in advance,

Afzal "AV-E" Hassen

Please help me about query

taoquandecor24-Apr-06 2:17

taoquandecor

24-Apr-06 2:17

I have a table as below

CompanyName Year Total Sales
AlfredsFutterkiste 1997 $2,022.50
AlfredsFutterkiste 1998 $2,250.50

expected:

CompanyName 1997 1998
AlfredsFutterkiste $2,022.50
Ana Trujillo Emp… $2,250.50

=>Please help me

Re: Please help me about query

Colin Angus Mackay24-Apr-06 2:31

Re: Please help me about query

24-Apr-06 2:31

Something like this:

SELECT
        CompanyName, 
        SUM(CASE WHEN [Year] = 1997 THEN [Total Sales] ELSE 0 END) AS [1997],
        SUM(CASE WHEN [Year] = 1998 THEN [Total Sales] ELSE 0 END) AS [1998]
FROM MyTable
GROUP BY CompanyName

taoquandecor24-Apr-06 18:29

taoquandecor

24-Apr-06 18:29

Thanks Colin Angus Mackay for help me about query

ORDER BY with Renamed Columns

myNameIsRon23-Apr-06 19:24

Re: ORDER BY with Renamed Columns

23-Apr-06 19:24

Hi,
I'm a little confused with the ORDER BY statement....

It seems I can't use a renamed column to sort using ORDER BY.
Eg:
SELECT LastName + ', ' + FirstName AS FullName FROM Suppliers ORDER BY FullName"// this gives an error

but if I have a UNION ALL statement, I do need to use the renamed column to sort:
SELECT LastName + ', ' + FirstName AS FullName FROM Suppliers WHERE LogNumber IS NULL UNION ALL SELECT LogNumber + ' - ' + LastName + ', ' + FirstName AS FullName FROM Suppliers WHERE LogNumber IS NOT NULL ORDER BY FullName"// this works

I realize that I can use ORDER BY LastName,FirstName in the first example, but I just wonder if I should be doing something different.

thanks,
Ron

Colin Angus Mackay23-Apr-06 20:28

Re: ORDER BY with Renamed Columns

23-Apr-06 20:28

The reason is that FullName is not one of the column names in any of the tables. Your solution of using ORDER BY LastName, FirstName would be the one I'd use.

As for the UNIONed SELECT statments, I didn't realise that would happen - I'd have automatically used ORDER BY LastName, FirstName for that too. However, it does make sense in a way - If you look at the execution plan for the query, the FullName column does exist before the output ordering process as all the SELECTs get UNIONed together first.

myNameIsRon24-Apr-06 14:46

24-Apr-06 14:46

Thanks Colin.

Making a field null

myNameIsRon23-Apr-06 11:31

23-Apr-06 11:31

Hi,
I'm working with a Win Form and MS Access.

How can I update a field that is a LongInteger to NULL after it has been set with a value? Yes, the db column is set to accept null.

This of course did not work Blush | :O

)
myCommand.Parameters.Add("@Number", OleDbType.BigInt).Value = null;

Thanks,
Ron

dadax_8523-Apr-06 11:51

dadax_85

23-Apr-06 11:51

try this
myCommand.Parameters.Add("@Number", OleDbType.BigInt).Value = "";

dadax_85@hotmail.com

Colin Angus Mackay23-Apr-06 12:59

23-Apr-06 12:59

That won't work either. An empty string is not null, it is a string of zero length.

Colin Angus Mackay23-Apr-06 12:58

23-Apr-06 12:58

Instead of null, use System.DBNull.Value. This is because in certain cases you will need to distinguish between a C# null and a database null. For example, in the case of ExecuteScalar a null result means that there was no result (i.e. the answer did not exist) whereas if ExecuteScalar returns DBNull.Value then the answer from the database is null (i.e. there is an answer, and the answer is null).

See MSDN: System.DBNull[^]

Does this help?

myNameIsRon23-Apr-06 15:04

23-Apr-06 15:04

I tip my hat to you Colin, thanks!!!

I have another issue with changing the field to DBNull...
but I think this is a C# issue with binding textbox with DataTable
and so I'll post it there as well.

I'm not able to:
if (txb_Number.Text == "")
{
//this never occurs because the textbox reverts to the original bound Long Integer value
}
I can only change the bound data if a new number is used. A blank textbox (or letters entered) only reverts back to the origninal value. I want to update the field to DBNull if the textbox is empty.

Ron