Hello.,
i have sql server in my pc and i want to connect my visual basic form to my sql? how can i do that? what is the code i have to write in the modules? please help
Thanx in advance...
Hello.,
i have sql server in my pc and i want to connect my visual basic form to my sql? how can i do that? what is the code i have to write in the modules? please help
Thanx in advance...
— the key decisions are which Visual Basic you are using (classic VB6 vs VB.NET) and which server (SQL Server vs MySQL). and were right to point out that a correct provider/driver and connection string are required; below is a concise, practical outline and a ready pattern you can adapt.
For VB.NET the recommended pattern is to use the built-in SqlClient (for SQL Server) or the official MySQL Connector/NET (for MySQL). Open connections as briefly as possible, use parameterized commands to avoid SQL injection, and always dispose connections (the Using block handles that cleanly). Example pattern for VB.NET:
Using conn As New System.Data.SqlClient.SqlConnection("Server=localhost;Database=YourDB;Integrated Security=True;")
conn.Open()
Using cmd As New System.Data.SqlClient.SqlCommand("SELECT * FROM Users WHERE Id=@id", conn)
cmd.Parameters.AddWithValue("@id", 1)
Using rdr = cmd.ExecuteReader()
' process results
End Using
End Using
End Using Troubleshooting checklist: confirm the server accepts TCP/IP connections and the correct authentication mode, ensure firewall and SQL Browser (for named instances) are configured, verify user privileges, and test connectivity with a DB client (SSMS or mysql client). For implementation details and API reference see Microsofts SqlConnection docs: SqlConnection (System.Data.SqlClient), how to enable network protocols for SQL Server: Enable or disable a server network protocol, and the MySQL provider docs: MySQL Connector/NET.
Jump to Post— debasisdas 580use ADO and find the Connecting string here.
You can find the connectionstring to be used in different database in http://www.connectionstrings.com
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