Showing maximum
0
I want to show maximum of guarantee which specific user has. For example user has bought 3 items which have 1,2,5 years guarantee. So I want to show 5 years guarantee and name of this product.
I did subquery in case few products have this same guarantee.
SELECT t.`id-user`, name, guarantee FROM transactions t
JOIN user u ON `t`.`id-user` = `u`.`id-user`
JOIN products p ON `p`.`id-product = `t`.`id-product`
WHERE guarantee = (SELECT MAX(p2.guarantee)
FROM products p2
WHERE `p2`.`id-product` = `p`.`id-product`)
This query shows all products and their guarantees.
mysql sql
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
add a comment |
0
I want to show maximum of guarantee which specific user has. For example user has bought 3 items which have 1,2,5 years guarantee. So I want to show 5 years guarantee and name of this product.
I did subquery in case few products have this same guarantee.
SELECT t.`id-user`, name, guarantee FROM transactions t
JOIN user u ON `t`.`id-user` = `u`.`id-user`
JOIN products p ON `p`.`id-product = `t`.`id-product`
WHERE guarantee = (SELECT MAX(p2.guarantee)
FROM products p2
WHERE `p2`.`id-product` = `p`.`id-product`)
This query shows all products and their guarantees.
mysql sql
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
2
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28
add a comment |
0
0
0
I want to show maximum of guarantee which specific user has. For example user has bought 3 items which have 1,2,5 years guarantee. So I want to show 5 years guarantee and name of this product.
I did subquery in case few products have this same guarantee.
SELECT t.`id-user`, name, guarantee FROM transactions t
JOIN user u ON `t`.`id-user` = `u`.`id-user`
JOIN products p ON `p`.`id-product = `t`.`id-product`
WHERE guarantee = (SELECT MAX(p2.guarantee)
FROM products p2
WHERE `p2`.`id-product` = `p`.`id-product`)
This query shows all products and their guarantees.
mysql sql
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
I want to show maximum of guarantee which specific user has. For example user has bought 3 items which have 1,2,5 years guarantee. So I want to show 5 years guarantee and name of this product.
I did subquery in case few products have this same guarantee.
SELECT t.`id-user`, name, guarantee FROM transactions t
JOIN user u ON `t`.`id-user` = `u`.`id-user`
JOIN products p ON `p`.`id-product = `t`.`id-product`
WHERE guarantee = (SELECT MAX(p2.guarantee)
FROM products p2
WHERE `p2`.`id-product` = `p`.`id-product`)
This query shows all products and their guarantees.
mysql sql
mysql sql
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
edited Dec 27 '18 at 22:30
Shadow
25.6k92743
25.6k92743
asked Dec 27 '18 at 20:05
programmer001
61
asked Dec 27 '18 at 20:05
programmer001
61
asked Dec 27 '18 at 20:05
programmer001
61
61
2
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28
add a comment |
2
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28
2
2
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28
add a comment |
2 Answers
2
active
oldest
votes
0
I think the simplest method is the substring_index()/group_concat() method for getting values associated with a maximum/minimum:
SELECT t.iduser, u.name,
MAX(p.guarantee) as guarantee,
SUBSTRING_INDEX(GROUP_CONCAT(p.name ORDER BY p.guarantee DESC), ',', 1)
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
GROUP BY t.iduser, u.name;
You can use your method too, but the correlated subquery is tricky:
SELECT t.iduser, u.name, p.guarantee, p.name
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
WHERE p.guarantee = (SELECT MAX(p2.guarantee)
FROM transactions t2 JOIN
products p2
ON p2.idproduct = t2.idproduct
WHERE t2.iduser = u.iduser
);
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
add a comment |
0
I think it work.
select [User].Name as [UserName],
Product.MaxGuarantee,
Product.Name as Product_Name
from [Users] [User]
left join Transactions [Transaction]
on [Transaction].[User] = [User].ID
cross apply(
select max(guarantee) MaxGuarantee, Name
from Products
where ID = [Transaction].Product
) Product
where [User].ID = ''
answered Dec 28 '18 at 0:13
Mehrdad
12
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
I think the simplest method is the substring_index()/group_concat() method for getting values associated with a maximum/minimum:
SELECT t.iduser, u.name,
MAX(p.guarantee) as guarantee,
SUBSTRING_INDEX(GROUP_CONCAT(p.name ORDER BY p.guarantee DESC), ',', 1)
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
GROUP BY t.iduser, u.name;
You can use your method too, but the correlated subquery is tricky:
SELECT t.iduser, u.name, p.guarantee, p.name
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
WHERE p.guarantee = (SELECT MAX(p2.guarantee)
FROM transactions t2 JOIN
products p2
ON p2.idproduct = t2.idproduct
WHERE t2.iduser = u.iduser
);
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
add a comment |
0
I think the simplest method is the substring_index()/group_concat() method for getting values associated with a maximum/minimum:
SELECT t.iduser, u.name,
MAX(p.guarantee) as guarantee,
SUBSTRING_INDEX(GROUP_CONCAT(p.name ORDER BY p.guarantee DESC), ',', 1)
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
GROUP BY t.iduser, u.name;
You can use your method too, but the correlated subquery is tricky:
SELECT t.iduser, u.name, p.guarantee, p.name
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
WHERE p.guarantee = (SELECT MAX(p2.guarantee)
FROM transactions t2 JOIN
products p2
ON p2.idproduct = t2.idproduct
WHERE t2.iduser = u.iduser
);
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
add a comment |
0
0
0
I think the simplest method is the substring_index()/group_concat() method for getting values associated with a maximum/minimum:
SELECT t.iduser, u.name,
MAX(p.guarantee) as guarantee,
SUBSTRING_INDEX(GROUP_CONCAT(p.name ORDER BY p.guarantee DESC), ',', 1)
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
GROUP BY t.iduser, u.name;
You can use your method too, but the correlated subquery is tricky:
SELECT t.iduser, u.name, p.guarantee, p.name
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
WHERE p.guarantee = (SELECT MAX(p2.guarantee)
FROM transactions t2 JOIN
products p2
ON p2.idproduct = t2.idproduct
WHERE t2.iduser = u.iduser
);
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
I think the simplest method is the substring_index()/group_concat() method for getting values associated with a maximum/minimum:
SELECT t.iduser, u.name,
MAX(p.guarantee) as guarantee,
SUBSTRING_INDEX(GROUP_CONCAT(p.name ORDER BY p.guarantee DESC), ',', 1)
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
GROUP BY t.iduser, u.name;
You can use your method too, but the correlated subquery is tricky:
SELECT t.iduser, u.name, p.guarantee, p.name
FROM transactions t JOIN
user u
ON t.iduser = u.iduser JOIN
products p
ON p.idproduct = t.idproduct
WHERE p.guarantee = (SELECT MAX(p2.guarantee)
FROM transactions t2 JOIN
products p2
ON p2.idproduct = t2.idproduct
WHERE t2.iduser = u.iduser
);
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
edited Dec 27 '18 at 20:10
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
answered Dec 27 '18 at 20:08
Gordon Linoff
759k35292399
759k35292399
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
add a comment |
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
1
1
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
ah crap. Gordon is here. No more SQL reputation for me :/
– The Impaler
Dec 27 '18 at 20:09
add a comment |
0
I think it work.
select [User].Name as [UserName],
Product.MaxGuarantee,
Product.Name as Product_Name
from [Users] [User]
left join Transactions [Transaction]
on [Transaction].[User] = [User].ID
cross apply(
select max(guarantee) MaxGuarantee, Name
from Products
where ID = [Transaction].Product
) Product
where [User].ID = ''
answered Dec 28 '18 at 0:13
Mehrdad
12
add a comment |
0
I think it work.
select [User].Name as [UserName],
Product.MaxGuarantee,
Product.Name as Product_Name
from [Users] [User]
left join Transactions [Transaction]
on [Transaction].[User] = [User].ID
cross apply(
select max(guarantee) MaxGuarantee, Name
from Products
where ID = [Transaction].Product
) Product
where [User].ID = ''
answered Dec 28 '18 at 0:13
Mehrdad
12
add a comment |
0
0
0
I think it work.
select [User].Name as [UserName],
Product.MaxGuarantee,
Product.Name as Product_Name
from [Users] [User]
left join Transactions [Transaction]
on [Transaction].[User] = [User].ID
cross apply(
select max(guarantee) MaxGuarantee, Name
from Products
where ID = [Transaction].Product
) Product
where [User].ID = ''
answered Dec 28 '18 at 0:13
Mehrdad
12
I think it work.
select [User].Name as [UserName],
Product.MaxGuarantee,
Product.Name as Product_Name
from [Users] [User]
left join Transactions [Transaction]
on [Transaction].[User] = [User].ID
cross apply(
select max(guarantee) MaxGuarantee, Name
from Products
where ID = [Transaction].Product
) Product
where [User].ID = ''
answered Dec 28 '18 at 0:13
Mehrdad
12
answered Dec 28 '18 at 0:13
Mehrdad
12
answered Dec 28 '18 at 0:13
Mehrdad
12
answered Dec 28 '18 at 0:13
Mehrdad
12
12
add a comment |
add a comment |
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2
Allowing '-' as a table/column identifier has the potential for catastrophic damage
– Strawberry
Dec 27 '18 at 20:28