2006-10-29から1日間の記事一覧
SELECT t1.key, t1.count, t2.count, t3.count, t4.count FROM table01 AS t1 LEFT OUTER JOIN table02 AS t2 ON (t1.key = t2.key) LEFT OUTER JOIN table03 AS t3 ON (t1.key = t3.key) LEFT OUTER JOIN table04 AS t4 ON (t1.key = t4.key) ; table01 に…