FirstTable Id Fld1 Int C(20) -------------- 1 Rec1 2 Rec2 3 Rec3 4 Rec4 SecondTable Id FT_FK Fld3 Int Int C(20) ----------------- 1 1 SecTblRec1 2 2 SecTblRec21. Left Join:
SELECT FT.Id, FT.Fld1, ST.Id AS StId, St.Fld3 FROM FirstTable Ft LEFT JOIN SecondTable St ON Ft.Id = St.Ft_FK *** Result will be: Id Fld1 StId Fld3 Int C(20) Int C(20) -------------------------- 1 Rec1 1 SecTblRec1 2 Rec2 2 SecTblRec2 3 Rec3 NULL NULL 4 Rec4 NULL NULL2. [INNER] Join:
SELECT FT.Id, FT.Fld1, ST.Id AS StId, St.Fld3 FROM FirstTable Ft JOIN SecondTable St ON Ft.Id = St.Ft_FK *** Result will be: Id Fld1 StId Fld3 Int C(20) Int C(20) -------------------------- 1 Rec1 1 SecTblRec1 2 Rec2 2 SecTblRec2