为措辞严厉的标题道歉,但这是一个例子:
表A
╔═══╦════════════╦═════════════╗
║ ║ title ║ creator ║
╠═══╬════════════╬═════════════╣
║ 1 ║ Lorem ║ 1 ║
║ 2 ║ Ipsum ║ 2 ║
║ 3 ║ Dolor ║ 3 ║
╚═══╩════════════╩═════════════╝
表B
╔═══╦════════════╦═════════════╗
║ ║ id ║ name ║
╠═══╬════════════╬═════════════╣
║ 1 ║ 1 ║ Tom ║
║ 2 ║ 2 ║ John ║
║ 3 ║ 3 ║ Harry ║
╚═══╩════════════╩═════════════╝
是否有可能从表A中选择所有的查询,但在结果中它会将tableA.creator链接到tableB.name并在结果中显示tableB.name而不是tableA.creator?
答案 0 :(得分:2)
SELECT b.name FROM A a LEFT JOIN B b ON a.creator=b.id
答案 1 :(得分:1)
SELECT A.Title, B.Name
FROM TableA as A
INNER JOIN TableB AS B on(A.Creator = B.Id)
答案 2 :(得分:0)
SELECT a.title, b.name FROM A a LEFT JOIN B b ON a.creator=b.id
OR
SELECT a.title, b.name
FROM A as a
JOIN B AS b on a.creator = b.id
答案 3 :(得分:0)
尝试以下查询
select distinct A.title , B.name
from A join B
on A.creator = B.id