Access-SQL: Inner Join with multiple tables

Question

i have multiple tables in a database:

tblOjt

ID    studentid    courseid    companyid    addresseeid    dateadded    datestarted    dateended    ojthours

1         3            1           1             1         9/25/2013                                  500 

tblStudent

ID    lastname    firstname    middlename    course    gender    renderedhours    dateadded    archive

3     Dela Cruz      Juan        Santos       BSIT      Male          500

tblCourse

ID    coursealias    coursename                                            hours
1         BSIT      Bachelor of Science in Information Technology          500

tblCompany

ID    companyname

1      MyCompany

tblAddressee

ID    addresseename

1     John dela Cruz

i need to have a SQL statement in which i can get this values:

tableOjt.id  tableOJT.surname,firstname, and middlename  course  companyname  addresseename dateadded datestarted dateended ojthours

how will i get this code in SQL using those join methods...im writing it in VB6 ADODC, is this the same syntax in a standard SQL ? thanks

Answer 1

If you are writing a query against an Access database backend, you need to use the following join syntax:

select
  t1.c1
, t2.c2
, t3.c3
, t4.c4
from ((t1
inner join t2 on t1.something = t2.something)
inner join t3 on t2.something = t3.something)
inner join t4 on t3.something = t4.something

The table and column names aren't important here, but the placement of the parentheses is. Basically, you need to have n - 2 left parentheses after the from clause and one right parenthesis before the start of each new join clause except for the first, where n is the number of tables being joined together.

The reason is that Access's join syntax supports joining only two tables at a time, so if you need to join more than two you need to enclose the extra ones in parentheses.