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【SQL】 MySQL Basic

SELECT

1
SELECT Column_Name FROM Table_Name
SELECT * FROM Table_Name
SELECT DISTINCT Column_Name FROM Table_Name
SELECT DISTINCT Column_Name FROM Table_Name
SELECT Column_Name FROM Table_Name LIMIT Number
SELECT Column_Name FROM Table_Name LIMIT Number
SELECT Function(Column_Name) FROM Table_Name 
  • avg()
  • count()
  • first()
  • last()
  • max()
  • min()
  • sum()

    Prerequisite

    SELECT Column_Name FROM Table_Name WHERE Condition
    





















    Option Description
    >,<,>=,<= larger/smaller than a specific value
    =,!= equal or unequal to a specific value
    BETWEEN in a certain range
    LIKE search in a certain area, always combined with wildcard

    Sort

    SELECT Column_Name FROM Table_Name ORDER BY Column_Name
    

    Alias

    SELECT Column_Name AS Alias FROM Table_Name
    
    SELECT Column_Name FROM Table_A_Name AS A JOIN Table_B_Name AS B