sql - Error in query, two select statements with left join? -



sql - Error in query, two select statements with left join? -

i have 2 select statements:

a: select a.1,a.2,a.3 table1 b: select b.1,b.2,b.3 table1 b

now bring together these 2 statements?

i tried in below way , got error:

select * (select a.1,a.2,a.3 table1 a) aa left bring together (select b.1,b.2,b.3 table1 b) bb aa.a.1 = bb.b.1;

within left join, need include on/where clause:

select * (select a.1,a.2,a.3 table1 a) aa left bring together (select b.1,b.2,b.3 table1 b) bb aa.a.1 = bb.b.1,

should in format:

select * (select a.1, a.2, a.3 table1 a) aa left bring together (select b.1,b.2,b.3 table2 b) bb on a.1 = b.1 ...

for more clarification, please see image:

as stands, it's quite hard distinguish requirements in terms of want query return, op image visually display syntax each of joins.

sql left-join

Comments

Popular posts from this blog

Delphi change the assembly code of a running process -

json - Hibernate and Jackson (java.lang.IllegalStateException: Cannot call sendError() after the response has been committed) -

C++ 11 "class" keyword -