How can i Insert,and Delete data to my database (Tables)

Question

0.00/5 (No votes)

See more:

hi guts,

i want to know how to insert anf delete data from tables and think you

i have use this code :

SqlConnection sc = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Ecole.mdf;Integrated Security=True;User Instance=True");
            SqlDataAdapter da = new SqlDataAdapter();

            da.InsertCommand = new SqlCommand("INSERT INTO Etudiant VALUES(@N,@P)", sc);
            da.InsertCommand.Parameters.Add("@N", SqlDbType.NChar).Value = nom.Text;
            da.InsertCommand.Parameters.Add("@P", SqlDbType.NChar).Value = prenom.Text;

            sc.Open();
            da.InsertCommand.ExecuteNonQuery();
            sc.Close();

but this code don't change data of Table

Posted 18-Jul-11 2:47am

guendouz bachir

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Syed Salman Raza Zaidi · Accepted Answer · 2011-07-18T02:56:00

Solution 1

Hi,

I think the no. of columns in your table Etudiant are more than 2 and you are inserting values in only 2 columns,so you should specify the column names to which you want to insert,second try using '' in values like this ===>

SQL

Insert into Etudient(col1,col2) value('','');

Posted 18-Jul-11 2:56am

Syed Salman Raza Zaidi

Updated 18-Jul-11 2:58am

v2

Comments

walterhevedeich 18-Jul-11 9:13am

This might be what OP needs. 5ed.

szorik · Accepted Answer · 2011-07-18T02:57:00

Solution 2

hi bachir,

there is a good code example in the following link :
http://msdn.microsoft.com/en-us/library/ms233812(v=vs.80).aspx[^]

or if you using .NET 2 or higher you could use tableadapter object (also shown on the link ) :-)

Posted 18-Jul-11 2:57am

szorik

Updated 18-Jul-11 3:16am

v2

Comments

walterhevedeich 18-Jul-11 9:16am

Good link. 5ed

Kim Togo · Accepted Answer · 2011-07-18T02:59:00

Solution 3

Check out SQL Tutorial[^]. Nice and simple examples on how SQL statements works.

Posted 18-Jul-11 2:59am

Kim Togo

Comments

walterhevedeich 18-Jul-11 9:17am

Nice link. The basics are usually the ones that are important. 5ed.

Kim Togo 18-Jul-11 10:28am

Thanks