LEFT JOIN vs. LEFT OUTER JOIN in SQL Server

后端 未结 12 1889
失恋的感觉
失恋的感觉 2020-11-21 13:25

What is the difference between LEFT JOIN and LEFT OUTER JOIN?

12条回答
  •  野性不改
    2020-11-21 14:00

    There are only 3 joins:

    • A) Cross Join = Cartesian (E.g: Table A, Table B)
    • B) Inner Join = JOIN (E.g: Table A Join/Inner Join Table B)
    • C) Outer join:

         There are three type of outer join
         1)  Left Outer Join     = Left Join
         2)  Right Outer Join    = Right Join
         3)  Full Outer Join     = Full Join    
      

    Hope it'd help.

提交回复
热议问题