Select rows where one row meets a condition
I have a table with 3 columns:
UserId ProductId Status
1 100 1
1 1 0
2 100 0
4 100 0
5 1 1
5 100 1
6 2 1
I want to select all rows that have ProductId = 100 at least once per user and the user has atleast one more record other than with ProductId = 100.
Expected results:
UserId ProductId Status
1 100 1
1 1 0
5 1 1
5 100 1
I solved it like this by referring to another solution:
select "ProductId", "UserId", "Status"
from "MyTable"
WHERE EXISTS (
SELECT 1 FROM "MyTable" WHERE "ProductId" = 100
)
But it returns all users where even one record is 100.
mysql postgresql
asked 9 mins ago
asanasasanas
101
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I have a table with 3 columns:
UserId ProductId Status
1 100 1
1 1 0
2 100 0
4 100 0
5 1 1
5 100 1
6 2 1
I want to select all rows that have ProductId = 100 at least once per user and the user has atleast one more record other than with ProductId = 100.
Expected results:
UserId ProductId Status
1 100 1
1 1 0
5 1 1
5 100 1
I solved it like this by referring to another solution:
select "ProductId", "UserId", "Status"
from "MyTable"
WHERE EXISTS (
SELECT 1 FROM "MyTable" WHERE "ProductId" = 100
)
But it returns all users where even one record is 100.
mysql postgresql
asked 9 mins ago
asanasasanas
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I have a table with 3 columns:
UserId ProductId Status
1 100 1
1 1 0
2 100 0
4 100 0
5 1 1
5 100 1
6 2 1
I want to select all rows that have ProductId = 100 at least once per user and the user has atleast one more record other than with ProductId = 100.
Expected results:
UserId ProductId Status
1 100 1
1 1 0
5 1 1
5 100 1
I solved it like this by referring to another solution:
select "ProductId", "UserId", "Status"
from "MyTable"
WHERE EXISTS (
SELECT 1 FROM "MyTable" WHERE "ProductId" = 100
)
But it returns all users where even one record is 100.
mysql postgresql
asked 9 mins ago
asanasasanas
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a table with 3 columns:
UserId ProductId Status
1 100 1
1 1 0
2 100 0
4 100 0
5 1 1
5 100 1
6 2 1
I want to select all rows that have ProductId = 100 at least once per user and the user has atleast one more record other than with ProductId = 100.
Expected results:
UserId ProductId Status
1 100 1
1 1 0
5 1 1
5 100 1
I solved it like this by referring to another solution:
select "ProductId", "UserId", "Status"
from "MyTable"
WHERE EXISTS (
SELECT 1 FROM "MyTable" WHERE "ProductId" = 100
)
But it returns all users where even one record is 100.
mysql postgresql
mysql postgresql
asked 9 mins ago
asanasasanas
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 mins ago
asanasasanas
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 mins ago
asanasasanas
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 9 mins ago
asanasasanas
101
asked 9 mins ago
asanasasanas
101
101
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asanas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
1 Answer
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If you can handle both products on the same row:
select t1.UserId, t1.ProductId, t1.Status,
t2.ProductId as otherproduct, t2.Status as otherproductstatus
from MyTable t1
join MyTable t2
on t1.UserID=t2.UserID
AND t1.ProductID=100
AND t2.productID!=100
However with this you'll get all products for a user:
answered 1 min ago
danblackdanblack
2,0131213
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you can handle both products on the same row:
select t1.UserId, t1.ProductId, t1.Status,
t2.ProductId as otherproduct, t2.Status as otherproductstatus
from MyTable t1
join MyTable t2
on t1.UserID=t2.UserID
AND t1.ProductID=100
AND t2.productID!=100
However with this you'll get all products for a user:
answered 1 min ago
danblackdanblack
2,0131213
add a comment |
If you can handle both products on the same row:
select t1.UserId, t1.ProductId, t1.Status,
t2.ProductId as otherproduct, t2.Status as otherproductstatus
from MyTable t1
join MyTable t2
on t1.UserID=t2.UserID
AND t1.ProductID=100
AND t2.productID!=100
However with this you'll get all products for a user:
answered 1 min ago
danblackdanblack
2,0131213
add a comment |
If you can handle both products on the same row:
select t1.UserId, t1.ProductId, t1.Status,
t2.ProductId as otherproduct, t2.Status as otherproductstatus
from MyTable t1
join MyTable t2
on t1.UserID=t2.UserID
AND t1.ProductID=100
AND t2.productID!=100
However with this you'll get all products for a user:
answered 1 min ago
danblackdanblack
2,0131213
If you can handle both products on the same row:
select t1.UserId, t1.ProductId, t1.Status,
t2.ProductId as otherproduct, t2.Status as otherproductstatus
from MyTable t1
join MyTable t2
on t1.UserID=t2.UserID
AND t1.ProductID=100
AND t2.productID!=100
However with this you'll get all products for a user:
answered 1 min ago
danblackdanblack
2,0131213
answered 1 min ago
danblackdanblack
2,0131213
answered 1 min ago
danblackdanblack
2,0131213
answered 1 min ago
danblackdanblack
2,0131213
2,0131213
add a comment |
add a comment |
asanas is a new contributor. Be nice, and check out our Code of Conduct.
asanas is a new contributor. Be nice, and check out our Code of Conduct.
asanas is a new contributor. Be nice, and check out our Code of Conduct.
asanas is a new contributor. Be nice, and check out our Code of Conduct.
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