mysql - 极光:Find diff between two tables based on primary key

Question

我有如下表

|001000900|aaaaa BELLOWS CORPORATION||N|
|001000905|ddddd DEPARTMENT OF LABOR AND EMPLOYMENT SECURITY|BUREAU OF COMPLIANCE|N|
|001001049|gggg RAVIOLI MFG CO INC|SPINELLI BKY RAVIOLI PASTRY SP|N|
|001001130|dddd ANGELES UNIFIED SCHOOL DISTRICT|TRANSPORTATION BRANCH|N|
|001001143|ffff MUSIC PARTIES, INC||N|
|001001155|BOSTON BRASS AND IRON CO||N|
|001001171|HANCOCK MARINE, INC.||N|
|001001184|TRILLION CORPORATION||N|
|001001192|HAWAII STATE CHIROPRACTIC ASSOCIATION INC||N|
|001001379|THE FRUIT SQUARE PEOPLE INC|L & M BAKERY|N|
|001001416|J & S MARKET||N|

Table2 像这样

|001000145|PARADISE TAN||N|
|001000306|SHRUT & ASCH LEATHER COMPANY, INC.||N|
|001000355|HARRISON SPECIALTY CO., INC.||N|
|001000363|LOUIS M. GERSON CO., INC.||N|
|001000467|SAVE THE SEA TURTLES INTERNATIONAL|ADOPT THE BEACH HI|N|
|001000504|DIRIGO SPICE CORPORATION|CUNNINGHAM SPICE|N|
|001000744|FREEDMAN THREAD COMPANY|COLONIAL THREAD CO|N|
|001000756|AFFORDABLE AIR CONDITIONING|P R ENTERPRISE|N|
|001000900|CLIFLEX BELLOWS CORPORATION||N|
|001000905|FLORIDA DEPARTMENT OF LABOR AND EMPLOYMENT SECURITY|BUREAU OF COMPLIANCE|N|
|001001049|SPINELLI RAVIOLI MFG CO INC|SPINELLI BKY RAVIOLI PASTRY SP|N|
|001001130|LOS ANGELES UNIFIED SCHOOL DISTRICT|TRANSPORTATION BRANCH|N|
|001001143|TOSCO MUSIC PARTIES, INC||N|
|001001155|BOSTON BRASS AND IRON CO||N|

我的要求是基于主键查找两个表中都存在的行(匹配行)，仅当其他列发生更改时，主键才是第一列。

例如，如果主键相同且其他列至少有一个不同，那么该列将出现在输出中。

我怎样才能做到这一点。简单的 except 会给我结果吗？

Answer 1

您是否正在寻找带有 where 条件的 join？

select t1.*, t2.*
from table1 t1 join
     table2 t2
     on t1.pk = t2.pk
where not (t1.col2 <=> t2.col2) or
      not (t1.col3 <=> t2.col3) or
      not (t1.col4 <=> t2.col4) ;