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<p class="MsoNormal"><span 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 class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Marty<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 [mailto:paul.white@shift7solutions.com.au]
<br>
<b>Sent:</b> 31 August 2018 12:20<br>
<b>To:</b> Martin Bowes; 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>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D">So you want output like this?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">res_note for snapshot_id = 14 is dodgy.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">pos=55 char=0x03<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">pos=103 char=0x04<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">pos=11999 char=0x00<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">res_note for snapshot_id = 28 is dodgy.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><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 class="MsoNormal"><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 class="MsoNormal"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><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""> info-ingres-bounces@lists.planetingres.org [mailto:info-ingres-bounces@lists.planetingres.org]
<b>On Behalf Of </b>Martin Bowes<br>
<b>Sent:</b> Friday, 31 August 2018 8:41 PM<br>
<b>To:</b> info-ingres@lists.planetingres.org<br>
<b>Subject:</b> [Info-ingres] More similar to<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I just knew this non printing character stuff was going to come back and bite me…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can identify the rows with non printing characters excluding \t, \r and \n.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The easiest way I can think of doing this is to do it in a database procedure…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">create procedure identify_bad_char<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">as declare<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> snapshot_id integer4 not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> res_note long varchar not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> msgid integer4 not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> msg varchar(256) not null not default;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">begin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> msgid = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 style="font-family:"Courier New""> FROM basket_snapshot<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 style="font-family:"Courier New""> DO<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> msgid = msgid + 1;<o:p></o:p></span></p>
<p class="MsoNormal"><span 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 style="font-family:"Courier New""> message :msgid :msg;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span 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 style="font-family:"Courier New""> ENDFOR;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">end;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal">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></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Martin Bowes<span style="font-family:"Courier New""><o:p></o:p></span></p>
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