how can i count this 3 fields in mysql? - 


case     when epro02.startreportid = 101 , eventprovider02.startvoltage = 0 'power supply disconnected'  when eventprovider02.startsatellitecount < 9 or eventprovider02.startgsmsignallevel < 20 or eventprovider02.startgsmstatus != 9 'network outage'  when eventprovider02.startreportid = 13 'gsm jamming'  end reason

use entire case...end count() , group by

select  case     when epro02.startreportid = 101 , eventprovider02.startvoltage = 0 'power supply disconnected' when eventprovider02.startsatellitecount < 9 or eventprovider02.startgsmsignallevel < 20 or eventprovider02.startgsmstatus != 9 'network outage' when eventprovider02.startreportid = 13 'gsm jamming' end reason,  count(case     when epro02.startreportid = 101 , eventprovider02.startvoltage = 0 'power supply disconnected' when eventprovider02.startsatellitecount < 9 or eventprovider02.startgsmsignallevel < 20 or eventprovider02.startgsmstatus != 9 'network outage' when eventprovider02.startreportid = 13 'gsm jamming' end) reason_count your_table_join_here group case     when epro02.startreportid = 101 , eventprovider02.startvoltage = 0 'power supply disconnected' when eventprovider02.startsatellitecount < 9 or eventprovider02.startgsmsignallevel < 20 or eventprovider02.startgsmstatus != 9 'network outage' when eventprovider02.startreportid = 13 'gsm jamming' end

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