選擇查詢，以便從其他鍵/值表填充字段

Question

TABLE_1

pid | decs_key 
------------------------- 
1 | 1022 
2 | 1028 
3 | 1022 
4 | 1022 
5 | 1022 

TABLE_2

desc_key| decs_value 
------------------------- 
1022 | 'desc 1' 
1028 | 'desc 2' 
1029 | 'desc 3' 
1088 | 'desc 4' 

如何編寫返回下面的結果集的SELECT查詢：

1 | 'desc 1' 
2 | 'desc 2' 
3 | 'desc 1' 
4 | 'desc 1' 
5 | 'desc 1' 

Answer 1

select table1.pid, table2.decs_value 
from table1 
join table2 
on table1.decs_key = table2.decs_key