group-by

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Linq query with inner join, multiple group by and min max

I\'m trying to convert the following query to linq. SELECTClient.Nom, Client.Prenom AS Prénom, Client.Structure, MIN(Meeting.Start) AS Début, MAX(Meeting.Start) AS Fin, Meeting.Dispositifs AS Dispo[详细]

2023-04-05 13:33 分类：问答
SQL Server GROUP BY datetime ignore hour minute and a select with a date and sum value

I have a table with two fields - datetime and int. I want to do a group by on the开发者_开发知识库 datetime only on the date ignoring the hour and minute. The SELECT statement should return a date tha[详细]

2023-04-05 07:40 分类：问答
MySQL advenced GROUP BY statement

I have table of messages in mysql. Columns are named as sender, reciever, text, id, date. Query like this:[详细]

2023-04-05 07:14 分类：问答
Grouping with Stata with two or more variables as in SQL GROUP BY

In SQL it is possible to group with several variables: SELEC开发者_StackOverflowT a, b, COUNT(*) FROM t[详细]

2023-04-05 06:50 分类：问答
Problem with Select Mysql Condition Group By Order

Each service has different KPIs. These KPIs are ordered with the field order in the table checklist_has_kpi.[详细]

2023-04-05 03:08 分类：问答
MySQL query to get a column paired with maximum value of a second column

This is for MySQL, but there may be a more generally applicable SQL statement. I don\'t really need this to be portable, though.[详细]

2023-04-04 23:39 分类：问答
How to group by to get rid of duplicates rows

How do I remo开发者_开发百科ve duplicates from the table where all the columns are significant apart from PK.[详细]

2023-04-04 21:37 分类：问答
Group by query is not working in android 2.1

I am saving datetime in milliseconds in my local database table \"session\" My problem is this code is working in android 2.2 and above but belove version of android 2.2[详细]

2023-04-04 21:20 分类：问答
Select the quickest laptime of a driver per track

I have a problem with a query for mysql. I have 2 tables: tijden kartbaan in the tijden are all the laptimes stored. I store: tijdenId, rijderId, baan, datum, tijd.[详细]

2023-04-04 18:25 分类：问答
Mysql count group by and left join not working as expected

Below is a simple query for a click tracker.I\'ve had a look at a lot of other posts and I\'m scratching my head.I cannot get this query to work so that all rows from the calendar table (one calendar[详细]

2023-04-04 17:38 分类：问答