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MySQL statistics by day / week / month / quarter / half year / year

2022-06-29 08:10:00 【Know the black and accept the white】

Read the directory

  • Time stamp
    • Use of MySQL function
      • 1 FROM_UNIXTIME( Time stamp , Format )
      • 2 YEAR( Time character )
      • 3 QUARTER( Time character )
      • IF( Conditions , Right value , Wrong value )
      • Floating point rounding
      • CONCAT( character 1, character 2,...) Concatenate characters
    • Data sheet
      • 1、 Count by day
      • 2、 Statistics by week
      • 3、 By month
      • 4、 Quarterly statistics
      • 5、 Statistics by half a year
      • 6、 Annual statistics
  • Date format
    • Table structure
      • Fuzzy query -- LIKE
      • wildcard -- `_`
      • instr Fuzzy query
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