Re: i need query - Database Discussion Boards

bhattiprolu20-Aug-07 21:38

20-Aug-07 21:38

i have username and password fields in my table,
i jus want to write a query to check whether the given details of user matches with the database.

please gimme the query Confused | :confused:

Re: i need query

Programm3r20-Aug-07 21:42

Programm3r

20-Aug-07 21:42

Something like (this may not be the best way, but a quick answer to say the least):

SELECT * FROM <TABLENAME> WHERE USER = 'JOHN' AND PASS = 'MYPASS'

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: i need query

bhattiprolu20-Aug-07 22:28

bhattiprolu

20-Aug-07 22:28

not like that........
wat i mean to say is.......
i have alogin page where user enters his/her username and password
i have to check the data with database and redirect the user to corresponding next page for the i need a query. D'Oh! | :doh:

Re: i need query

Programm3r20-Aug-07 22:32

Programm3r

20-Aug-07 22:32

bhattiprolu wrote:
i have to check the data with database and redirect the user to corresponding next page for the i need a query

I cant see what the problem is, because after the select statement you will have all data specific to that user, so redirecting the user to the correct page should be a breeze. Just pass the information of the user to the next page. Unless I'm totlally mis-understanding you.

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: i need query

bhattiprolu20-Aug-07 23:57

bhattiprolu

20-Aug-07 23:57

can u gimme the query.....

Re: i need query

Colin Angus Mackay21-Aug-07 0:02

Colin Angus Mackay

21-Aug-07 0:02

HE DID!!

He gave you this:
SELECT * FROM <TABLENAME> WHERE USER = 'JOHN' AND PASS = 'MYPASS'

But since you've told us nothing about your database structure it may not be correct.

If you want more help you'll have to help us understand your problem. Repeating the same statements over and over again do not help. You need to give us more information.

-- Always write code as if the maintenance programmer were an axe murderer who knows where you live.

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Re: i need query

Colin Angus Mackay20-Aug-07 23:34

Colin Angus Mackay

20-Aug-07 23:34

bhattiprolu wrote:
not like that........

Your original post said:

i have username and password fields in my table,
i jus want to write a query to check whether the given details of user matches with the database.

please gimme the query

What other answer could you expect from that?!

bhattiprolu wrote:
i have to check the data with database and redirect the user to corresponding next page for the i need a query.

You mentioned nothing about login pages or redirecting users. How were we supposed to know, especially since you posted this in the "SQL" forum?

If you've got the data and youre question is about ASP.NET post in the appropriate forum.

Re: i need query

Nouman Bhatti21-Aug-07 20:58

Nouman Bhatti

21-Aug-07 20:58

SELECT * FROM <tablename> WHERE USER = 'JOHN' AND PASS = 'MYPASS'

this is the write query...
now if u r using c# or vb.net
get result of this query in datareader and dataadaptor..

if any row returns that means username and password is correct... then redirect to the other page..

Re: i need query

T.EDY21-Aug-07 22:24

T.EDY

21-Aug-07 22:24

They Already gave u the right Query..if u're try to implement that query in your
apps just change the where value, ex :

<br />
Select * From [my_table] WHERE username = '" +UserText.Text+ "' AND password = '" +PasswdText.Text+ "'<br />

wat else do u need they gave u the right query u need Big Grin | :-D

Regards,

Tomi

Re: i need query

Colin Angus Mackay22-Aug-07 4:50

Colin Angus Mackay

22-Aug-07 4:50

TomiEdy wrote:
Select * From [my_table] WHERE username = '" +UserText.Text+ "' AND password = '" +PasswdText.Text+ "'

Then get ready for a SQL Injection Attack with code like that!

Please read: SQL Injection Attacks and Tips on How to Prevent Them[^]

Update and to_date question

Programm3r20-Aug-07 21:28

Programm3r

20-Aug-07 21:28

Hi all,

I would like to know whether one uses the to_date function in a update statement aswell, as one would in a insert statement (when making use of a Oracle Database).

Many Thanks
Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: Update and to_date question

Chris Meech21-Aug-07 4:24

Chris Meech

21-Aug-07 4:24

I make use of the 'to_date' function everywhere. Smile | :)

Whether it's a 'select', 'insert', 'update' or even a 'delete' statement, you can use a function call just about anywhere.

Do you have a specific instance that is giving you an error or problem?

Chris Meech
I am Canadian. [heard in a local bar]

DateTime syntax help

Branislav Vidovic20-Aug-07 14:23

Branislav Vidovic

20-Aug-07 14:23

Hello guys..
Looks like I just need a litle help on my SQL syntax in C#.NET
I have a field in my database which is DateTime type. Looks like I can't get the syntax right for comparing the value from the textBox with the field in database.
Now what I have looks like:

<br />
DateTime ShDate = DateTime.Parse(txtDate.Text);<br />
cmd1.CommandText = "SELECT ShipedDate FROM Details WHERE Details.ShipedDate = #ShDate#";<br />

When I fill dataset with the adapter which has this SelectCommand it will report error in date in the syntax expresion. Now the variable ShDate has a DateTime type in C# and it stores a date from the textbox with a help of conversion and it is in a correct format(I cheked while debuging).
I think the problem is somewhere here = #ShDate#. I bet I am missing some quotation marks ("") or single quote('').
So does any one have a clue?
Thanks..

Re: DateTime syntax help

Senu Gandhi20-Aug-07 18:01

Senu Gandhi

20-Aug-07 18:01

Hi,

I think you are just now migrating from MS-Acccess.
When comparing date in SQL Server no need of "#".
Just simply " = ShDate " is enough.

Senthil

Re: DateTime syntax help

edukulla21-Aug-07 20:07

edukulla

21-Aug-07 20:07

Can you try this out...

DateTime ShDate = DateTime.Parse(txtDate.Text);
cmd1.CommandText = 'SELECT ShipedDate FROM Details WHERE Details.ShipedDate =%' + ShDate + '%';

See if it helps.
Thanks!
Santhosh

Santhosh Kumar Edukulla

Re: DateTime syntax help

edukulla21-Aug-07 20:46

edukulla

21-Aug-07 20:46

Apologies, ignore my previous post..

Try this
DateTime ShDate = DateTime.Parse(txtDate.Text);
cmd1.CommandText = 'SELECT ShipedDate FROM Details WHERE Details.ShipedDate like' + '''' + '%' + ShDate + '%' + '''';

I tried it on my sql box and it worked.

Hope this helps

Thanks!

Santhosh Kumar Edukulla

Database Question

dhbaer20-Aug-07 3:48

dhbaer

20-Aug-07 3:48

I'm looking to develop an application that will require a small database table structure (not more then 4-5 tables). I wanted to make the database internal to the application so that there wouldn't have to be a link out to a web server/SQL server anywhere, but with just receiving a new datafile to replace the old one, it would be able to pick it up. Is there any code/project type in Visual Studio that would allow me to create such a database that could be deployed with the application and be able to be queried with a SQL/Oracle type interface/query? I am open to writing the application in either Visual Basic or Visual C++.

Re: Database Question

martin_hughes20-Aug-07 5:12

martin_hughes

20-Aug-07 5:12

Sounds like SQL Server Compact Edition is the tool for you:

http://www.microsoft.com/sql/editions/compact/default.mspx[^]

"It was the day before today.... I remember it like it was yesterday."

-Moleman

Re: Database Question

dhbaer20-Aug-07 5:21

dhbaer

20-Aug-07 5:21

I will look into it, but from a quick glance, it may just be that. Thank you very much.

Seployment the Windows Application

Thaer Hamael20-Aug-07 3:32

Thaer Hamael

20-Aug-07 3:32

Hi All
I Finished Deployment windows application and i will to setup it in the customer
My database is SqlSERVER 2005
I Used SqlServer EXPRESS 2005 to set the Backup of data base on it in the pc of customer
the Server is Mixed MOde
when I Running my Application The is give me this the Exeption
(An Erorr occurred while establishing aconnection to SQL Server 2005 , this failure may be caused by the fact that under the defult Settings SQL Server does not allow remote Connection (Provider :SQL Network Interface error :26-Error locating Server/Interface Specified))

what is the solve for this Problem ??
thanks for all Hellp me Rose | [Rose]

Thaer

Re: Seployment the Windows Application

Rami Said Abd Alhalim20-Aug-07 4:40

Rami Said Abd Alhalim

20-Aug-07 4:40

Hi Thaer Hamael

1- Go To Start -->Programs --> Microsoft SQL Server 2005 --> Configuration Tools
--> SQL Server 2005 Surface Area Configuration

2- collapse Analysis Service
3- Choice Local and remote Connection
4-Choice Database Engine and choice Remote connection Local and remote Connection and using both

Rami Abd Alhalim

how can delete data without drop relation ship between tables???

Rami Said Abd Alhalim20-Aug-07 3:08

Rami Said Abd Alhalim

20-Aug-07 3:08

i have to delete data but i have problem found relation between tables so i cant
delete data
how can delete data without drop relation ship between tables???

Rami Abd Alhalim

Re: how can delete data without drop relation ship between tables???

kubben20-Aug-07 3:50

kubben

20-Aug-07 3:50

If I am understanding you correctly, you can not do this. That is the purpose of the foreign key constaint. It will not allow you to delete the data without dropping the relationship between the tables. The only other options is to delete data from all the tables in the correct sequence.

Hope that helps.
Ben

Re: how can delete data without drop relation ship between tables???

Rami Said Abd Alhalim20-Aug-07 4:19

Rami Said Abd Alhalim

20-Aug-07 4:19

Thanks

how correct sequence

Re: how can delete data without drop relation ship between tables???

kubben20-Aug-07 4:23

kubben

20-Aug-07 4:23

It depends on how your tables are related. Let's say you had:
ParentTable1
ChildTable1
ChildTable2

Both ChildTable1 and ChildTable2 have parenttable1ID which is the key. All of the records in childTable1 and childTable2 that have that parenttable1ID must be deleted before the record in ParentTable1 with parenttable1id can be deleted.

The benifit of this is that you can't orphen the Child table records. They must be deleted before the parent table record can be deleted.

Hope that helps.
Ben

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