distinct

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Using MYSQL Distinct with Count?

I\'m looking to use both DISTINCT and COUNT in a MySQL query, something like this: SELECT DISTINCT `data1` AS new_data, COUNT(new_data) FROM table_name WHERE `data2`=\'$data2\' AND `data3` = \'$data3[详细]

2023-04-06 04:45 分类：问答
Mysql: How to select top 10 users of the last 24 hours for a ranking list (and avoid multiple user entries)

I want to list the top 10 users in the last 24 hours with the highest WPM (words per minute) value.开发者_如何学编程 If a user has multiple highscores, only the highest score should be shown. I got th[详细]

2023-04-04 22:25 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
Distinct on specific column in Hive

I am running Hive 071 I have a table, with mulitple rows, with the same column value e.g. x | y | ---------[详细]

2023-04-04 07:51 分类：问答
NHibernate 3 - type safe way to select a distinct list of values

I am trying to select a distinct list of values from a table whilst ordering on another column. The only thing working for me so far uses magic strings and an object array. Any better (type-safe) way[详细]

2023-04-03 18:12 分类：问答
Ruby loop to create an array of DISTINCT counts

I\'m trying to create an array of counts per day. I want the counts to be only of distinct uid\'s (what ui开发者_C百科d\'s are \"distinct\" shouldn\'t be reset each day).[详细]

2023-04-02 01:16 分类：问答
How can I get a single result from a related table in SQL?

I have the following SQL query: SELECT gallery.id, gallery.thumbnail_big, products.id, products.title,[详细]

2023-03-31 20:57 分类：问答
C# LINQ query (MYSQL EF) - Distinct and Latest Records

I have a table, lets call it Record. Containing: ID (int) |CustID (int)|Time (datetime)|Data (varchar)[详细]

2023-03-31 19:23 分类：问答
Performance issues with mongo + PHP with pagination, distinct values

I have a mongodb collection contains lots of books with many fields. Some key fields which are relevant for my question are :[详细]

2023-03-31 09:53 分类：问答
MySql: extracting distinct entries from three different columns of same table

I have a table called deals which stores client_id1, client_id2, client_id3. These ids correspond to clients table which have clientName and client开发者_StackOverflow_id fields.[详细]

2023-03-31 04:42 分类：问答