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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Our term for that is plain ‘data correction’.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Oddly, for stuff like that, I’m more comfortable with C than SQL.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">I usually dump the data into a file and process it from there and re-insert the corrected data.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">When processing millions of rows, it’s way more efficient than within the database.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR-CA" style="color:black">André Laframboise<br>
<br>
Conseiller Principal Base de Données, Direction générale de l'Innovation et du Dirigeant principal de l'information<br>
</span><span style="color:black"><a href="http://www.bac-lac.gc.ca/fra/Pages/bac-web.aspx"><span lang="FR-CA">Bibliothèque et Archives Canada</span></a></span><span lang="FR-CA" style="color:black"> / Gouvernement du Canada
<br>
</span><span style="color:black"><a href="mailto:andre.laframboise@canada.ca"><span lang="FR-CA">andre.laframboise@canada.ca</span></a></span><span lang="FR-CA" style="color:black"> / Tél. : 613-298-1346<br>
<br>
Senior Database Advisor, Innovation and Chief Information Officer Branch<br>
</span><span style="color:black"><a href="http://www.bac-lac.gc.ca/eng/Pages/lac-web.aspx"><span lang="FR-CA">Library and Archives Canada</span></a></span><span lang="FR-CA" style="color:black"> / Government of Canada<br>
</span><span style="color:black"><a href="mailto:andre.laframboise@canada.ca"><span lang="FR-CA">andre.laframboise@canada.ca</span></a></span><span lang="FR-CA" style="color:black"> / Tel: 613-298-1346<br>
<br>
</span><a href="http://www.bac-lac.gc.ca/eng/events/Pages/events.aspx"><span style="text-decoration:none"><img border="0" width="320" height="112" style="width:3.3333in;height:1.1666in" id="_x0000_i1025" src="http://www.bac-lac.gc.ca/eng/events/PublishingImages/banner.jpg" alt="http://www.bac-lac.gc.ca/eng/events/PublishingImages/banner.jpg"></span></a><span lang="FR-CA" style="color:black"><br>
</span><span lang="FR-CA" style="color:#1F497D;mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> info-ingres-bounces@lists.planetingres.org <info-ingres-bounces@lists.planetingres.org>
<b>On Behalf Of </b>Allan Biggs<br>
<b>Sent:</b> Friday, August 31, 2018 9:21 AM<br>
<b>To:</b> Martin Bowes <martin.bowes@ndph.ox.ac.uk>; paul.white@shift7solutions.com.au; info-ingres@lists.planetingres.org<br>
<b>Subject:</b> Re: [Info-ingres] More similar to<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman",serif">Have you thought of using OpenROAD to do this?
<br>
It might enable you to do some of the processing in SQL and some in the 4GL? <br>
<br>
<br>
Or maybe report writer .... or maybe not ...<br>
Allan <br>
-- <br>
Sent from my Android phone with <a href="http://mail.com">mail.com</a> Mail. Please excuse my brevity.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman",serif">On 31/08/2018, 12:29 Martin Bowes <<a href="mailto:martin.bowes@ndph.ox.ac.uk">martin.bowes@ndph.ox.ac.uk</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">I would like to keep it in the database, but if push comes to shove I’m more than willing to look at some utility outside the database.<o:p></o:p></span></p>
<p><span lang="EN-GB" style="color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Marty<o:p></o:p></span></p>
<p><span lang="EN-GB" style="color:#1F497D"> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> Paul White [<a href="mailto:paul.white@shift7solutions.com.au">mailto:paul.white@shift7solutions.com.au</a>]
<br>
<b>Sent:</b> 31 August 2018 12:20<br>
<b>To:</b> Martin Bowes; <a href="mailto:info-ingres@lists.planetingres.org">info-ingres@lists.planetingres.org</a><br>
<b>Subject:</b> RE: [Info-ingres] More similar to<o:p></o:p></span></p>
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<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D">So you want output like this?<o:p></o:p></span></p>
<p><span lang="EN-AU" style="color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">res_note for snapshot_id = 14 is dodgy.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">pos=55 char=0x03<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">pos=103 char=0x04<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">pos=11999 char=0x00<o:p></o:p></span></p>
<p><span lang="EN-GB" style="font-family:"Courier New""> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">res_note for snapshot_id = 28 is dodgy.<o:p></o:p></span></p>
<p><span lang="EN-GB" style="font-family:"Courier New""> <o:p></o:p></span></p>
<p><span lang="EN-AU" style="color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D">Text processing in the database. yuk.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D">Do you have the option of extracting the matching records to a file then do the grunt work with text processing tools?<o:p></o:p></span></p>
<p><span lang="EN-AU" style="color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D">Paul<o:p></o:p></span></p>
<p><span lang="EN-AU" style="color:#1F497D"> <o:p></o:p></span></p>
<p><span lang="EN-AU" style="color:#1F497D"> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">
<a href="mailto:info-ingres-bounces@lists.planetingres.org">info-ingres-bounces@lists.planetingres.org</a> [<a href="mailto:info-ingres-bounces@lists.planetingres.org">mailto:info-ingres-bounces@lists.planetingres.org</a>]
<b>On Behalf Of </b>Martin Bowes<br>
<b>Sent:</b> Friday, 31 August 2018 8:41 PM<br>
<b>To:</b> <a href="mailto:info-ingres@lists.planetingres.org">info-ingres@lists.planetingres.org</a><br>
<b>Subject:</b> [Info-ingres] More similar to<o:p></o:p></span></p>
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<p><span lang="EN-AU"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Hi All,<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I just knew this non printing character stuff was going to come back and bite me…<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I can identify the rows with non printing characters excluding \t, \r and \n.<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Now I need to find which characters are being objected to on each row. I may need to know their position as well.<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The data in question is a long varchar. But (fortunately) the longest item is under 12000 characters, so we are under the 32000 char varchar conversion limit.<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The easiest way I can think of doing this is to do it in a database procedure…<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">create procedure identify_bad_char<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">as declare<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> snapshot_id integer4 not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> res_note long varchar not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> msgid integer4 not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> msg varchar(256) not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">begin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> msgid = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> FOR SELECT snapshot_id, res_note INTO :snapshot_id, :res_note<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> FROM basket_snapshot<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> WHERE res_note SIMILAR TO '%[^' + x'09' + x'0a' + x'0d' + '[:print:]]%'<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> DO<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> msgid = msgid + 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> msg = 'res_note for snapshot_id = ' + varchar(:snapshot_id) + ' is dodgy.';<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> message :msgid :msg;<o:p></o:p></span></p>
<p><span lang="EN-GB" style="font-family:"Courier New""> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> /* Insert manic while loop here and process the line character by character */<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New""> ENDFOR;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New"">end;<o:p></o:p></span></p>
<p><span lang="EN-GB" style="font-family:"Courier New""> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Before I start coding up the manic while loop … does anyone have a suggestion as to how I can do this more efficiently.<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The data was probably added to a web form via a cut and paste from a word document, so we’ve picked up things like smart quotes. Hence we may ultimately be interested in replacing multi character sequences with simple
ansi equivalents. I have a suspicion a clean() function is galloping in my direction.<o:p></o:p></span></p>
<p><span lang="EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Martin Bowes</span><span lang="EN-GB" style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman",serif">_______________________________________________ Info-ingres mailing list
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<o:p></o:p></span></p>
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