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49 lines
1.4 KiB
49 lines
1.4 KiB
<%@ LANGUAGE = PerlScript%>
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<html>
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<head>
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<meta name="GENERATOR" content="Tobias Martinsson">
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<title>ADO Binary Large Objects (BLOB)</title>
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</head>
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<body>
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<BODY BGCOLOR=#FFFFFF>
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<!--
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ActiveState PerlScript sample
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PerlScript: The coolest way to program custom web solutions.
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-->
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<!-- Masthead -->
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<TABLE CELLPADDING=3 BORDER=0 CELLSPACING=0>
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<TR VALIGN=TOP ><TD WIDTH=400>
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<A NAME="TOP"><IMG SRC="PSBWlogo.gif" WIDTH=400 HEIGHT=48 ALT="ActiveState PerlScript" BORDER=0></A><P>
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</TD></TR></TABLE>
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<HR>
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<H3>ActiveX Data Objects (ADO) Reading BLOBs</H3>
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You can use GetChunk() of ADO to read Binary Large Objects; in contrast, AppendChunk() writes binary large objects.
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Below is a BLOB read directly from SQL Server's pubs database.
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<BR>
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<IMG SRC="readblob.asp">
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<BR>
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<BR>
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<%
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$url = $Request->ServerVariables('PATH_INFO')->item;
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$_ = $Request->ServerVariables('PATH_TRANSLATED')->item;
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s/[\/\\](\w*\.asp\Z)//m;
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$params = 'filename='."$1".'&URL='."$url";
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$params =~ s#([^a-zA-Z0-9&_.:%/-\\]{1})#uc '%' . unpack('H2', $1)#eg;
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$params2 = 'filename='."readblob.asp".'&URL='."$url";
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$params2 =~ s#([^a-zA-Z0-9&_.:%/-\\]{1})#uc '%' . unpack('H2', $1)#eg;
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%>
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<A HREF="index.htm"> Return </A>
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<A HREF="showsource.asp?<%=$params%>">
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<h4><i>view the source</i></h4></A>
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<A HREF="showsource.asp?<%=$params2%>">
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<h4><i>view the BLOB reading routine</i></h4></A>
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</BODY>
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</HTML>
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