DOCUMENT:Q155494 07-MAY-1999 [iis] TITLE :Limiting the Number of Records Returned by IDC PRODUCT :Internet Information Server PROD/VER:1.0 2.0 OPER/SYS: KEYWORDS:kbenv ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server versions 1.0, 2.0 ------------------------------------------------------------------------------- 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 ====================================================================== Keywords : kbenv Technology : kbiisSearch kbiis200 kbiis100 Version : 1.0 2.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.