1SELECT TableA.*, TableB.*, TableC.*, TableD.*
2FROM TableA
3 JOIN TableB
4 ON TableB.aID = TableA.aID
5 JOIN TableC
6 ON TableC.cID = TableB.cID
7 JOIN TableD
8 ON TableD.dID = TableA.dID
9WHERE DATE(TableC.date)=date(now())
10
1-- LEFT OUTER JOIN is equivalent to LEFT JOIN
2-- b.VALUE1 is null when ID not in table2 (idem for c.VALUE1 in table3)
3SELECT a.ID, a.NAME, b.VALUE1, c.VALUE1 FROM table1 a
4 LEFT OUTER JOIN table2 b ON a.ID = b.ID
5 LEFT OUTER JOIN table3 c ON a.ID = c.ID
6WHERE a.ID >= 1000;
7
8-- ⇓ Test it ⇓ (Fiddle source link)