I have a web application that has a MySql database with a device_status table that looks something like this...
I\'m trying to calculate asset-weighted returns by asset class. For the life of me, I can\'t figure out how to do it using the aggregate comm开发者_开发技巧and.
I have a table describing files with a datetime field. I want to somehow create a report that gives me the number of files grouped by each year, number of files grouped by each year and month and numb
I am trying to build a dictionary from an enumerable, but I need an aggregator for all potentially duplicate keys.Using ToDi开发者_如何学Pythonctionary() directly was occasionally causing duplicate ke
I have a table named \'Attendance\' which is used to record student attendance time in courses. This table has 4 columns, say \'id\', \'course_id\', \'attendance_time\', and \'student_name\'. An examp
public class SearchText { public virtual int Id { get; set; } public virtual string Text { get; set; } } public class SearchTextLog
I have the following three tables: ----PRODUCT---- PRODUCT_IDDESC 1\'Pencil\' 2\'Paper\' ----PRICE_BY_SUPPLIER----
Is t开发者_运维百科here a way to aggregate multiple aggregates to 1 time span? Dim times = { New TimeSpan(1, 0, 0),
take two following classes: class Test1{ public: Test1()=default; Test1(char in1,char in2):char1(in1),char2(in2){}
i have a table in SQL 2008 as IDItems 1A 1B 2C 3D 3B i would like to get the result as IDItems 1A,B 2C 3B,D I have used cursors but it has considerably slowed the process , can i achieve the
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