how to write select statement

Question

4.00/5 (1 vote)

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i m getting error as scalar variable must be at email

C#

public DataSet logindetailsDAl()
        {
            try
            {

                SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["MyConsString"].ConnectionString);
                con.Open();
                SqlCommand cmd = new SqlCommand(" SELECT * FROM resource WHERE Email=@Email, Password=@Password and OrganisationID=@OrganisationID", con);
                
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                DataSet ds = new DataSet();
                da.Fill(ds);
                return ds;
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }

Posted 29-Jan-13 0:06am

Dhritirao's

Updated 29-Jan-13 0:54am

MT_

v3

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**Joezer BH** · Answer 1 · 2013-01-29T01:13:00

Solution 3

Hi Angelina,

You forgot to enter the values of the parameters in the SQL Command!

C#

cmd.Parameters.Add("@Email", MyMailAddress); // add value of the parameters to the command

Cheers,
Edo

Posted 29-Jan-13 1:13am

Joezer BH

Updated 29-Jan-13 1:15am

v2

Comments

fjdiewornncalwe 30-Jan-13 9:49am

My 5. This is the correct way to do this.

RDBurmon · Answer 2 · 2013-01-29T00:10:00

Are you from SQL background ?

SQL

CREATE PROCEDURE CheckAuthantication(@UserId NVARCHAR(50) , @Password NVARCHAR(50))
BEGIN
DECLARE @IsAuthanicated NVARCHAR(5)
SET  @IsAuthanicated='0'
SELECT  @IsAuthanicated=1 FROM Users WHERE Userid=@Userid AND Password=@Password
IF  @IsAuthanicated='0' THEN
 SET @IsAuthanicated='False'
ELSE
 SET  @IsAuthanicated='True'
END IF
END

Now run this procedure on sql server and call this from your code and check for value if 'True' then authenticate user otherwise not

Accept and vote if helps otherwise revert back with queries
--RDB