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Q155494: Limiting the Number of Records Returned by IDC

Article: Q155494
Product(s): Internet Information Server
Version(s): 1.0 2.0
Operating System(s): 
Keyword(s): kbenv
Last Modified: 07-MAY-1999

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The information in this article applies to:

- Microsoft Internet Information Server versions 1.0, 2.0 
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SYMPTOMS
========

When you use the Internet Information Server (IIS) Internet Database Connector
(IDC) to query large databases, for example, a Microsoft SQL Server, a large
amount of data may be returned causing the browser to hang for long periods of
time.

CAUSE
=====

If the query used is very general, a large number of records may be returned
from the database. For example, Microsoft SQL Server can return up to 4 billion
records from a single query. In most cases, this could be a large portion of the
database. Various browsers will react differently because a large amount of data
will be received.

WORKAROUND
==========

To prevent browser overload, use the MaxRecords parameter in the .IDC file that
you are using to make the database query. For example,

Datasource: Web SQL
Username: sa
MaxRecords: 100
Template: query.htx
SQLStatement:
+SELECT FirstName, LastName
+FROM Guests ...

In this example, MaxRecords would limit the records returned to 100.

Additional query words: odbc iis htx idc
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Keywords          : kbenv 
Technology        : kbiisSearch kbiis200 kbiis100
Version           : 1.0 2.0

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