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Title Database Display via GetString
Description This page demonstrates the capabilities how to display a table from a SQL statement a very fast and scaleable way using a recordset method called GetString. GetString essentially asks the backend database to build a huge string instead of moving the data as rows and columns. It allows very limited specifications, basically what string to place between each column and row and how to display nulls. Notice the total absence of the traditional EOF loop. Its speed and scalability advantages are explained in: Http://www.learnasp.com/advice/whygetrows.asp This example does require ADO 2.0 or greater which can be downloaded from: http://www.microsoft.com/data If you are unsure which ADO version your server has http://www.learnasp.com/learn/versioncheck.asp will help you determine this. Does this approach matter for small data sets for example 9 rows x 2 columns of data? YES!!!!!!!! My site has SQLserver scripts that run like lightning. I once needed to fill a 9 item listbox from Access and got 90 sec script timeouts with movenext. Getstring never timed out. So in a real production situation it makes weak databases feasible and of course reduces the load on more industrial back-ends so maybe the SQLserver doesn't need as many indexes or RAM upgrades.
Category ASP » SQL
Hits 4974
Code Select and Copy the Code
<TITLE>dbtablegetstring.asp</TITLE> <body bgcolor="#FFFFFF"> <% whichDSN="DSN=Student;uid=student;pwd=magic" mySQL="select * from publishers where state='NY'" Set conntemp=Server.CreateObject("adodb.connection") conntemp.open whichDSN Set rstemp=conntemp.execute(mySQL) If rstemp.eof Then Response.Write "No records matched<br>" Response.Write mySQL & "<br>So cannot make table..." Call CloseAll Response.End End If Response.Write "<table border='1'><tr>" 'Put Headings On The Table of Field Names For Each whatever In rstemp.fields Response.Write "<td><b>" & whatever.name & "</B></TD>" Next Response.Write "</tr><tr><td>" Response.Write rstemp.getstring(,, "</td><td>", "</td></tr><TR><TD>", "-null-") Response.Write "</td></tr></table>" Call CloseAll Sub CloseALL rstemp.close Set rstemp=Nothing conntemp.close Set conntemp=Nothing End Sub %> </body></html>

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