group-by

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select count of field by group

I have a table with the following table: id | score | type 1 |1 |\"a\" 2 |4 |\"b\" 3 |2 |\"b\" 4 |53 |\"c\"[详细]

2023-04-06 12:39 分类：问答
Getting the number of rows with a GROUP BY query within a subquery

I\'m building a MySQL query with subqueries. The query requires, as described in Getting the number of rows with a GROUP BY query, the number of records returned by a group-by query, because I want th[详细]

2023-04-06 11:32 分类：问答
Msql Select and group from db where team_1 and team_2 are the same but reversed in the entry

I need to select from database team_1 and team_2 (football game fixtures) and group by games $query = mysql_query(\"SELECT * FROM fixtures[详细]

2023-04-06 08:39 分类：问答
Values from two group by select statements into one

I have a table for logging method calls. It has LogId, MethodId, DateTime columns. I need to write a select statement that counts all logs for specific method IDs over a specific time period and also[详细]

2023-04-06 05:56 分类：问答
Mysql Group by clause help

$construct =\"SELECT * FROM mytable GROUP BY nid HAVING nid>1\"; mytable: +----+----------+ id |nid| +----+----------+[详细]

2023-04-06 05:43 分类：问答
Help tweak my mysql statement to produce the desired query

I have the following mysql statement basically doing what I want it to do except for one thing. SELECT[详细]

2023-04-05 23:35 分类：问答
Group By a substring in a field

I have a cities table in which I have citynames like \"Los Angeles (California)\". I tried to extract all the values contained between parantheses with a request, but I couldn\'t manage to do it well[详细]

2023-04-05 21:26 分类：问答
Sum datediff and group by

I have this simple query, but its not producing the resul开发者_如何学Gots I want... hopefully you can help:[详细]

2023-04-05 19:58 分类：问答
Use group by in and return identity of the row

For this table... idtypefoodprice -------------------------- 1vegcarrot10 2vegturnip11 3fruitbramble6 4fruitrasp4[详细]

2023-04-05 17:56 分类：问答
Having trouble expressing a group query in LINQ

I have a 2 types: public class TimedValue { public DateTime TimeStamp { get; set; } public double Value { get开发者_如何学运维; set; }[详细]

2023-04-05 16:03 分类：问答