How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures
How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures?
ADO.NET provides the SqlCommand object which provides the functionality of executing
Note :- Sample code is provided in folder “WindowsSqlClientCommand”. There are two stored procedures created in same database “Employees” which was created for the previous question.
CREATE PROCEDURE SelectByEmployee @FirstName nvarchar(200) AS Select FirstName from Employees where FirstName like @FirstName + '%' CREATE PROCEDURE SelectEmployee AS Select FirstName from Employees If txtEmployeeName.Text.Length = 0 Then objCommand = New SqlCommand(“SelectEmployee”) Else objCommand = New SqlCommand(“SelectByEmployee”) objCommand.Parameters. SqlDbType.NVarChar, 200) objCommand.Parameters. txtEmployeeName.Text.Trim() End If
In the above sample not much has been changed only that the SQL is moved to the stored procedures. There are two stored procedures one is “SelectEmployee” which selects all the employees and the other is “SelectByEmployee” which returns employee name starting with a specific character. As you can see to provide parameters to the stored procedures we are using the parameter object of the command object. In such question interviewer expects two simple answers one is that we use command object to execute stored procedures and the parameter object to provide parameter to the stored procedure. Above sample is provided only for getting the actual feel of it. Be short be nice and get a job.
2007-10-24, 4550👍, 0💬
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