MySql,内连接查询,必须匹配多行

Question

我正在创建一个MySQL查询,我想要检索一个ID,但前提是我在查询中指定的所有行中找到了匹配项.

Table: view_layout_rows

ID    owner    rows
___________________
49    1        2
50    1        2




Table: view_layout_rows_columns

ID    row    columns
___________________
49    1      5
49    2      4
50    1      5
50    2      5



SELECT vlr.id
FROM view_layout_rows vlr
INNER JOIN view_layout_rows_columns vlrc
ON vlr.id = vlrc.id 
WHERE vlr.rows = 2
AND (vlr.owner = 0 OR vlr.owner = 1)

并且应满足以下所有条件:

(vlrc.row = 1 AND vlrc.columns = 5) 
(vlrc.row = 2 AND vlrc.columns = 5)

只返回ID 50.不应该返回49,因为它只满足最后两个条款中的第一个.

我怎么能这样做？(请注意,我之前问过这个问题,但我的要求不清楚.第二次尝试.)提前感谢任何建议.

Answer 1

双加入救援!:-)

SELECT vlc.* 
FROM view_layout_rows vlc
INNER JOIN view_layout_rows_columns vlrc1 ON vlrc1.id = vlc.id
INNER JOIN view_layout_rows_columns vlrc2 ON vlrc2.id = vlc.id
WHERE vlrc1.row = 1 AND vlrc1.columns = 5
  AND vlrc2.row = 2 AND vlrc2.columns = 5

  /* imported from original query */
  AND vlr.rows = 2
  AND (vlr.owner = 0 OR vlr.owner = 1);