Connecting to SQL Server from JavaScript in the Browser: Not Recommended
While JavaScript can be utilized for web programming, it is strongly advised against using client-side JavaScript to access databases. This approach has numerous drawbacks, including security concerns and poor programming practices.
Despite the recommendation against client-side JavaScript database access, below is a sample code that demonstrates how it can be achieved with ActiveX objects:
var connection = new ActiveXObject("ADODB.Connection"); var connectionstring = "Data Source=<server>;Initial Catalog=<catalog>;User ID=<user>;Password=<password>;Provider=SQLOLEDB"; connection.Open(connectionstring); var rs = new ActiveXObject("ADODB.Recordset"); rs.Open("SELECT * FROM table", connection); rs.MoveFirst; while (!rs.eof) { document.write(rs.fields(1)); rs.movenext; } rs.close; connection.close;
However, for secure and efficient database connectivity, it is far more recommended to employ server-side languages such as PHP, Java, or .NET. Client-side JavaScript should primarily focus on user interface management.
It is worth noting that rumors persist regarding the existence of server-side JavaScript, but this remains an elusive concept.
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