Digging More into SQL Server 2000 Using Client-side JavaScript - How to retrieve the user defined data types (in all databases) existing in a particular SQL Server 2000 instance using JavaScript
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Now, let us try to develop a simple script (JavaScript) which lists all the user defined data types present in a SQL Server 2000 instance. The entire code for the sample is as follows:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title></title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1"> <meta name="vs_targetSchema" content="http://
schemas.microsoft.com/intellisense/ie5">
<script id="clientEventHandlersJS" language="javascript">
<!--
function Button1_onclick() {
var locator = new ActiveXObject ("WbemScripting.SWbemLocator");
var service = locator.ConnectServer(".","rootMicrosoftSQLServer");
var properties = service.ExecQuery("SELECT * FROM MSSQL_UserDatatype");
var e = new Enumerator (properties);
document.write("<table border=1>");
dispHeading();
for (;!e.atEnd();e.moveNext ())
{
var p = e.item ();
document.write("<tr>");
document.write("<td>" + p.DatabaseName + "</td>");
document.write("<td>" + p.Name + "</td>");
document.write("<td>" + p.BaseDataType + "</td>");
document.write("<td>" + p.Length + "</td>");
document.write("<td>" + p.MaxSize + "</td>");
document.write("</tr>");
}
document.write("</table>");
}
function dispHeading()
{
document.write("<thead>");
document.write("<td>Database</td>");
document.write("<td>Name</td>");
document.write("<td>BaseDataType</td>");
document.write("<td>Length</td>");
document.write("<td>MaxSize</td>");
document.write("</thead>");
}
//-->
</script>
</head>
<body> <INPUT id="Button1" type="button" value="Button" name="Button1"
language="javascript" onclick="return Button1_onclick()">
</body>
</html>
The above code would automatically list all the user-defined data types existing in all databases within a SQL Server 2000 instance. To retrieve this information, I used a built-in class, “MSSQL_UserDatatype” available in the “rootMicrosoftSQLServer” namespace.
The “for” loop I used in the above code iterates for every data type present in an SQL Server instance and finally retrieves only the properties of that data type.
Any comments, suggestions, bugs, errors, feedback etc. are highly appreciated at jag_chat@yahoo.com.
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