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How to connect to MySQL database

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In this tutorial we will show you how to connect to MySQL database. Everything is commented so you won't have trouble.

Connect with a DSN

DSN stands for 'Data Source Name'. It is an easy way to assign useful and easily rememberable names to data sources which may not be limited to databases alone. If you do not know how to set up a system DSN read our tutorial How to set up a system DSN.

<% 
'declare the variables
Dim Connection
Dim Recordset
Dim SQL

'declare the SQL statement that will query the database
SQL = "SELECT * FROM TABLE_NAME"

'create an instance of the ADO connection and recordset objects
Set Connection = Server.CreateObject("ADODB.Connection")
Set Recordset = Server.CreateObject("ADODB.Recordset")

'open the connection to the database
Connection.Open "DSN=dsn_name"


'Open the recordset object executing the SQL statement and return records
Recordset.Open SQL,Connection

'first of all determine whether there are any records
If Recordset.EOF Then
Response.Write("No records returned.")
Else
'if there are records then loop through the fields
Do While NOT Recordset.Eof   
Response.write Recordset("FIRST_FIELD_NAME")
Response.write Recordset("SECOND_FIELD_NAME")
Response.write Recordset("THIRD_FIELD_NAME")
Response.write "<br>"
   
Recordset.MoveNext    
Loop
End If


'close the connection and recordset objects freeing up resources
Recordset.Close
Set Recordset=nothing
Connection.Close
Set Connection=nothing
%>

Connect without a DSN (using a connection string)

Letís look at a sample script to get an idea how to connect to MySQL Server database without DSN:

<% 
'declare the variables
Dim Connection
Dim ConnectionString
Dim Recordset
Dim SQL

'declare the SQL statement that will query the database
SQL = "SELECT * FROM TABLE_NAME"

'define the connection string, specify database driver
ConnString = "DRIVER={MySQL ODBC 3.51 Driver}; SERVER=localhost; DATABASE=Your_Mysql_DB; " &_
"UID=mysql_username;PASSWORD=mysql_password; OPTION=3"

'create an instance of the ADO connection and recordset objects
Set Connection = Server.CreateObject("ADODB.Connection")
Set Recordset = Server.CreateObject("ADODB.Recordset")

'Open the connection to the database

Connection.Open ConnString

'Open the recordset object executing the SQL statement and return records
Recordset.Open SQL,Connection

'first of all determine whether there are any records
If Recordset.EOF Then
Response.Write("No records returned.")
Else
'if there are records then loop through the fields
Do While NOT Recordset.Eof   
Response.write Recordset("FIRST_FIELD_NAME")
Response.write Recordset("SECOND_FIELD_NAME")
Response.write Recordset("THIRD_FIELD_NAME")
Response.write "<br>"
   
Recordset.MoveNext    
Loop
End If


'close the connection and recordset objects freeing up resources
Recordset.Close
Set Recordset=nothing
Connection.Close
Set Connection=nothing
%>

Note: Don't forget to replace the constants (TABLE_NAME, FIELD_NAME) with real names of tables and fields in your database.

Related Articles

MySQL Connection Strings

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