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POLog Parser ORDER BY CASE statement
 

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    <p>Quite a trivial problem here that I can't seem to resolve. I am using LogParser to analyse some telephone system CSV log files. I am trying to produce a graph of all the incoming calls between two dates, grouped by day of the week. I have achieved this, but I am struggling to have the graph display the columns in the correct order, starting with Monday. My SQL query that I pass to LogParser is as follows:</p> <pre><code>SELECT to_string(to_timestamp(c1, 'yyyy/MM/dd HH:mm'), 'dddd') as Day, count(*) as Calls INTO graph.gif FROM C:\logs\*.txt WHERE c5 = 'I' AND to_timestamp(c1, 'yyyy/MM/dd HH:mm') BETWEEN timestamp('10/05/2012', 'dd/MM/yyyy') AND timestamp('24/05/2012', 'dd/MM/yyyy') GROUP BY Day </code></pre> <p>It actually outputs in the correct order without any ORDER BY statement at all, but I think that the first column is always the day that the date range starts on, whereas I would like it to always be Monday (for easy comparison of graphs). What happens currently is it converts the timestamp from my log file into a string representation of the day of the week (for the purpose of output) and as far as I am aware there is no built in logic that 'Monday' is less than 'Tuesday' and so on. My instinct was to use a CASE statement in an ORDER BY, but LogParser won't accept this.</p> <p>This is my entire LogParser command just in case it's relevant,</p> <pre><code>C:\Program Files (x86)\Log Parser 2.2\Logparser.exe" -i:CSV "SELECT to_string(to_timestamp(c1, 'yyyy/MM/dd HH:mm'), 'dddd') as Day, count(*) as Calls INTO graph.gif FROM C:\logs\*.txt WHERE c5 = 'I' AND to_timestamp(c1, 'yyyy/MM/dd HH:mm') BETWEEN timestamp('10/05/2012', 'dd/MM/yyyy') AND timestamp('24/05/2012', 'dd/MM/yyyy') GROUP BY Day" -chartType:Column3D -chartTitle:"Incoming Calls" -values:ON -config:MyConfig.js -o:CHART -headerRow OFF -iHeaderFile C:\logs\header\header.txt </code></pre> <p>Simply all I would like is for my results order to always start on Monday, regardless of the date range. Any ideas?</p> <p>EDIT - This is the query with the CASE statement included in the ORDER BY.</p> <pre><code>SELECT to_string(to_timestamp(c1, 'yyyy/MM/dd HH:mm'), 'dddd') as Day, count(*) as Calls INTO graph.gif FROM C:\logs\*.txt WHERE c5 = 'I' AND to_timestamp(c1, 'yyyy/MM/dd HH:mm') BETWEEN timestamp('10/05/2012', 'dd/MM/yyyy') AND timestamp('24/05/2012', 'dd/MM/yyyy') GROUP BY Day ORDER BY (CASE WHEN Day = 'Monday' THEN 1 WHEN Day = 'Tuesday' THEN 2 WHEN Day = 'Wednesday' THEN 3 WHEN Day = 'Thursday' THEN 4 WHEN Day = 'Friday' THEN 5 WHEN Day = 'Saturday' THEN 6 WHEN Day = 'Sunday' THEN 7 END) </code></pre>
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