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Oracle queries the amount of data within every 5-minute interval

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SELECT    COUNT(DISTINCTtmp. PLATE) Totalnum, Tmp.newtime from    (        SELECTT. License_plate PLATE, To_char (T. create_time,'Yyyymmddhh24mi') Oldtime,--the original Time             Case         whenSUBSTR (To_char (T. create_time,'mi'),            2,            1        ) < 5  ThenTo_char (T. create_time,'yyyymmddhh24'            ) ||SUBSTR (To_char (T. create_time,'mi'),                1,                1            ) || 0        ELSETo_char (T. create_time,'yyyymmddhh24'            ) ||SUBSTR (To_char (T. create_time,'mi'),                1,                1            ) || 5        END  asNewTime--time period pseudo-column         fromB_track TWHERET. Create_time>=To_date ('20180703000000',                'Yyyymmddhh24miss'            )        ORDER  byT. Create_timeASC) TMPGROUP  byTmp.newtimeORDER  byTmp.newtimeDESC

Oracle queries the amount of data within every 5-minute interval

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