Conrado ZAVALA
asked on
How can I include missing records of two tables
Dear Experts-Exchange:
I have the following two tables:
Table #1: CUSTOMER_POSIZES
Columns: COMPANY_ID,CUSTOMER_ID,CUS TOMERSTYLE _ID,CUSTOM ERPO_ID,CU STOMERSIZE _ID
Row #1: 0,8,'GARMENT #3',2,'6'
Row #2: 0,8,'GARMENT #3',2,'XS'
Row #3: 0,8,'GARMENT #3',2,'S'
Row #4: 0,8,'GARMENT #3',2,'M'
and
Table #2: CUSTOMER_SIZESPSTYLE
Columns: COMPANY_ID,CUSTOMER_ID,CUS TOMERSTYLE _ID,CUSTOM ERSIZE_ID
Row #1: 0,8,'GARMENT #3','XS'
Row #2: 0,8,'GARMENT #3','S'
Row #3: 0,8,'GARMENT #3','M'
Row #4: 0,8,'GARMENT #3','L'
Notice that CUSTOMERSIZE_ID = '6' is not present in CUSTOMER_SIZESPSTYLE list.
I need to write an SQL SELECT that can give me the following result set:
Row #1: '6'
Row #2: 'XS'
Row #3: 'S'
Row #4: 'M'
Row #5: 'L'
I will appreciate your help.
Best regards,
Conrado
I have the following two tables:
Table #1: CUSTOMER_POSIZES
Columns: COMPANY_ID,CUSTOMER_ID,CUS
Row #1: 0,8,'GARMENT #3',2,'6'
Row #2: 0,8,'GARMENT #3',2,'XS'
Row #3: 0,8,'GARMENT #3',2,'S'
Row #4: 0,8,'GARMENT #3',2,'M'
and
Table #2: CUSTOMER_SIZESPSTYLE
Columns: COMPANY_ID,CUSTOMER_ID,CUS
Row #1: 0,8,'GARMENT #3','XS'
Row #2: 0,8,'GARMENT #3','S'
Row #3: 0,8,'GARMENT #3','M'
Row #4: 0,8,'GARMENT #3','L'
Notice that CUSTOMERSIZE_ID = '6' is not present in CUSTOMER_SIZESPSTYLE list.
I need to write an SQL SELECT that can give me the following result set:
Row #1: '6'
Row #2: 'XS'
Row #3: 'S'
Row #4: 'M'
Row #5: 'L'
I will appreciate your help.
Best regards,
Conrado
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I don't agree with you. Your result would give:
Row #1: '6'
Row #2: 'XS'
Row #3: 'S'
Row #4: ,'M'
Row #5: 'XS'
Row #6: 'S'
Row #7: 'M'
Row #8: 'L'
because you first do a distinct on the seperate tables and then you union them together.
I think the following query is the correct one:
select distinct CUSTOMERSIZE_ID from (
select CUSTOMERSIZE_ID from CUSTOMER_POSIZES
union
select CUSTOMERSIZE_ID from CUSTOMER_SIZESPSTYLE
)
I first union them and then distinct the selection
Row #1: '6'
Row #2: 'XS'
Row #3: 'S'
Row #4: ,'M'
Row #5: 'XS'
Row #6: 'S'
Row #7: 'M'
Row #8: 'L'
because you first do a distinct on the seperate tables and then you union them together.
I think the following query is the correct one:
select distinct CUSTOMERSIZE_ID from (
select CUSTOMERSIZE_ID from CUSTOMER_POSIZES
union
select CUSTOMERSIZE_ID from CUSTOMER_SIZESPSTYLE
)
I first union them and then distinct the selection
@Ludo - UNION removes duplicates, UNION ALL does not. That's why I used the former.
UNION (Transact-SQL)
UNION (Transact-SQL)
ASKER
Thank you SimonAdept for providing a solution to my case. With your recommendation, I ended up building the following SQL SELECT:
SELECT B.SORT_ORDER, A.CUSTOMERSIZE_ID, C.QUANTITY, C.QUANTITYALLOW FROM CUSTOMER_SIZESPSTYLE A
INNER JOIN CUSTOMER_SIZES B ON A.COMPANY_ID = B.COMPANY_ID AND A.CUSTOMER_ID = B.CUSTOMER_ID AND A.CUSTOMERSIZE_ID = B.CUSTOMERSIZE_ID
LEFT JOIN CUSTOMER_POSIZES C ON A.COMPANY_ID = C.COMPANY_ID AND A.CUSTOMER_ID = C.CUSTOMER_ID AND A.CUSTOMERSTYLE_ID = C.CUSTOMERSTYLE_ID AND A.CUSTOMERSIZE_ID = C.CUSTOMERSIZE_ID
WHERE
A.COMPANY_ID = 0 AND
A.CUSTOMER_ID = 8 AND
A.CUSTOMERSTYLE_ID = 'GARMENT #3'
UNION
SELECT B.SORT_ORDER, A.CUSTOMERSIZE_ID, A.QUANTITY, A.QUANTITYALLOW FROM CUSTOMER_POSIZES A
INNER JOIN CUSTOMER_SIZES B ON A.COMPANY_ID = B.COMPANY_ID AND A.CUSTOMER_ID = B.CUSTOMER_ID AND A.CUSTOMERSIZE_ID = B.CUSTOMERSIZE_ID
WHERE
A.COMPANY_ID = 0 AND
A.CUSTOMER_ID = 8 AND
A.CUSTOMERPO_ID = 2 AND
A.CUSTOMERSTYLE_ID = 'GARMENT #3' AND
A.COLOR_ID = 'CARD. RED'
ORDER BY SORT_ORDER
Now, I am getting the output I need in my program :)
I also want to thank Neilsr and Ludo Van den Bosch for getting involved in this case. I highly appreciate everyone's help.
Thank you all,
Conrado
SELECT B.SORT_ORDER, A.CUSTOMERSIZE_ID, C.QUANTITY, C.QUANTITYALLOW FROM CUSTOMER_SIZESPSTYLE A
INNER JOIN CUSTOMER_SIZES B ON A.COMPANY_ID = B.COMPANY_ID AND A.CUSTOMER_ID = B.CUSTOMER_ID AND A.CUSTOMERSIZE_ID = B.CUSTOMERSIZE_ID
LEFT JOIN CUSTOMER_POSIZES C ON A.COMPANY_ID = C.COMPANY_ID AND A.CUSTOMER_ID = C.CUSTOMER_ID AND A.CUSTOMERSTYLE_ID = C.CUSTOMERSTYLE_ID AND A.CUSTOMERSIZE_ID = C.CUSTOMERSIZE_ID
WHERE
A.COMPANY_ID = 0 AND
A.CUSTOMER_ID = 8 AND
A.CUSTOMERSTYLE_ID = 'GARMENT #3'
UNION
SELECT B.SORT_ORDER, A.CUSTOMERSIZE_ID, A.QUANTITY, A.QUANTITYALLOW FROM CUSTOMER_POSIZES A
INNER JOIN CUSTOMER_SIZES B ON A.COMPANY_ID = B.COMPANY_ID AND A.CUSTOMER_ID = B.CUSTOMER_ID AND A.CUSTOMERSIZE_ID = B.CUSTOMERSIZE_ID
WHERE
A.COMPANY_ID = 0 AND
A.CUSTOMER_ID = 8 AND
A.CUSTOMERPO_ID = 2 AND
A.CUSTOMERSTYLE_ID = 'GARMENT #3' AND
A.COLOR_ID = 'CARD. RED'
ORDER BY SORT_ORDER
Now, I am getting the output I need in my program :)
I also want to thank Neilsr and Ludo Van den Bosch for getting involved in this case. I highly appreciate everyone's help.
Thank you all,
Conrado
You need to explain the logic behind WHY you expect to get that output. We could guess but then you may end up with a statement that works on THAT set of data but not on others.