sql - Group by similar string field -


a table logs files have been generated every report type in application. determine last time each report generated. files named numbers_reportname-day-time.xml.

i make query groups file names according what's between first sequence of numbers , time stamps, regex do.

is possible sql / sybase?

filename                                       generationdate  456879_report-one-20150409-164652.xml           2015/04/09         789456_report-two-20150409-131534.xml           2015/04/09          123458_report-two-20150510-121055.xml           2015/04/10           784111_report-three-20150510-100652.xml         2015/04/10

to

filename             generationdate  report-one           2015/04/09                  report-two           2015/04/10           report-three         2015/04/10           

select regexp_substr( filename , '((report-)([a-za-z]*))' ) reportname ,         generationdate x group reportname;

this should work regardless of how long reportname get. // in sybase


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