Multiple SQL JOIN with multiple criteria - sql

Question

SELECT A.SspStudent,
B.StuLastName,
B.StuFirstName,
C.TerDescription,
A.SspCourseSubject,
A.SspCourseID,
A.SspCreditHours,
A.SspStatus,
B.StuEmailUNCW,
B.StuAdvisorEmail,
B.StuApplicationStatus,
D.UseName
FROM ((tblStudentSchedulePerm A
INNER JOIN tblStudent B
ON (A.SspStudent = B.StuID AND
B.StuAdmitTerm <> '201520A' AND
A.SspStatus = 'Schedul' AND
(A.SspTerm = '201520A' OR A.SspTerm = '201520B') AND
A.SspCreditHours <> 0))
LEFT OUTER JOIN tblTerms C
ON A.SspTerm = C.TerTermPart)
LEFT OUTER JOIN D tblUser
ON B.StuAdvisorEmail = D.UseEmail;
I am trying to make this query work but everytime I try to adjust the parenthesis I get an error.
Could I get some help??

Answer 1

you are better off, with out those parenthesis, also you need to a sub query in the joins
Retained the parenthesis except in the OR AND condition , try this out.
SELECT A.SspStudent,
B.StuLastName,
B.StuFirstName,
C.TerDescription,
A.SspCourseSubject,
A.SspCourseID,
A.SspCreditHours,
A.SspStatus,
B.StuEmailUNCW,
B.StuAdvisorEmail,
B.StuApplicationStatus,
D.UseName
FROM tblStudentSchedulePerm A
INNER JOIN tblStudent B
ON A.SspStudent = B.StuID
AND B.StuAdmitTerm <> '201520A'
AND A.SspStatus = 'Schedul'
AND ( A.SspTerm = '201520A'
OR A.SspTerm = '201520B' )
AND A.SspCreditHours <> 0
LEFT OUTER JOIN tblTerms C
ON A.SspTerm = C.TerTermPart
LEFT OUTER JOIN tblUser D
ON B.StuAdvisorEmail = D.UseEmail;

Answer 2

I indented your query. This is how I usually start to pick apart something with which I'm unfamilar.
SELECT
A.SspStudent
, B.StuLastName
, B.StuFirstName
, C.TerDescription
, A.SspCourseSubject
, A.SspCourseID
, A.SspCreditHours
, A.SspStatus
, B.StuEmailUNCW
, B.StuAdvisorEmail
, B.StuApplicationStatus
, D.UseName
FROM
(
(
tblStudentSchedulePerm A
INNER JOIN tblStudent B ON
(
A.SspStudent = B.StuID
AND B.StuAdmitTerm <> '201520A'
AND A.SspStatus = 'Schedul'
AND (A.SspTerm = '201520A' OR A.SspTerm = '201520B')
AND A.SspCreditHours <> 0
)
)
LEFT OUTER JOIN tblTerms C ON A.SspTerm = C.TerTermPart
)
LEFT OUTER JOIN D tblUser ON B.StuAdvisorEmail = D.UseEmail
;

Answer 3

D tblUser
should be :
tblUser D
Other than that, remove all useless parentheses:
SELECT A.SspStudent,
B.StuLastName,
B.StuFirstName,
C.TerDescription,
A.SspCourseSubject,
A.SspCourseID,
A.SspCreditHours,
A.SspStatus,
B.StuEmailUNCW,
B.StuAdvisorEmail,
B.StuApplicationStatus,
D.UseName
FROM tblStudentSchedulePerm A
INNER JOIN tblStudent B
ON A.SspStudent = B.StuID
AND B.StuAdmitTerm <> '201520A'
AND A.SspStatus = 'Schedul'
AND ( A.SspTerm = '201520A'
OR A.SspTerm = '201520B' )
AND A.SspCreditHours <> 0
LEFT OUTER JOIN tblTerms C
ON A.SspTerm = C.TerTermPart
LEFT OUTER JOIN tblUser D
ON B.StuAdvisorEmail = D.UseEmail;