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Results tagged with mysql
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user 114172
All versions of MySQL (not Microsoft SQL Server). Please also add a version-specific tag like mysql-5.7 if that is relevant to the question.
1
vote
2
answers
333
views
MySQL: Select rows, grouped by ID, where none of the rows have a value in a certain column
Confusing title, I know. Ii couldn't think of a better way to word it.
Basically, I have a table like this:
OwnerID | LotID | CurrentOwner
The OwnerID is the unique key for the table. This value is …
- 183
2
votes
Accepted
MySQL: Select rows, grouped by ID, where none of the rows have a value in a certain column
I was able to solve my problem with the following query:
SELECT SUM(CASE
WHEN o.CurrentOwner IS NULL THEN 1
ELSE 0
END) AS numNull,
COUNT(*) AS total,
…
- 183
4
votes
3
answers
326
views
Complex joins with SUM
I am going to describe this problem as best I can. Hopefully someone can make sense of what I'm dealing with and can help me get out of this mess. This is a multiline, relatively complex query involvi …
- 183
1
vote
1
answer
2k
views
Mysql: Count, Group By, and limiting to first instance of an ID
I am trying to write a query to generate a report of sorts and I'm stuck on the logic of it. The summary of it is:
I need to select the count of activities, where post_type is 'invoice' AND event = ' …
- 183