aggregate
DDD Aggregate Question (.NET, EF)
My domain model (simplified) contains a story, team, members, and comments. I\'m at the point where I need to allow the user to write a comment about a story and I have the comment entity belonging to[详细]
2023-03-27 15:40 分类:问答LINQ implementation of Cartesian Product with pruning
I hope someone is able to help me with what is, at least to me, quite a tricky algorithm. The Problem I have a List (1 <= size <= 5, but size unknown until run-time) of Lists (1 <= size <[详细]
2023-03-26 04:18 分类:问答How to group one column into intervals, and aggregate the corresponding values from another column [closed]
This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time,or an extraordinarily narrow situation that is not generally applic[详细]
2023-03-25 20:34 分类:问答How can I use the same name for a column in the output of my sqlite query as a value I am comparing to in the join's ON clause?
My original question When I execute the following query in SQLite, I get this error: Query Error: misuse of aggregate: sum() Unable to execute statement[详细]
2023-03-25 10:50 分类:问答Oracle SQL Find Highest ID Across All Tables
Every one 开发者_如何学Cof my tables has an \"id\" field.I need to be able to find the highest ID across all of them, given that the list of tables might change.[详细]
2023-03-25 07:48 分类:问答Referring to a column in the first query from the second query in T-SQL UNION
I have two SELECT statements that are UNIONed, as in the pseudo code below SELECT A.InvoiceNumber, A.itemCode, A.itemDescription, A.Cost[详细]
2023-03-25 07:33 分类:问答User-Defined Aggregate functions in Oracle PIVOT clause
Unable to use user-defined aggregate functions in Oracle PIVOT clause. I created a user-defined aggregate function called string_agg.[详细]
2023-03-24 21:11 分类:问答When and how to use Aggregate Target in xcode 4
I was trying to look for an example of using an Aggregate Target in Xcode4, inclu开发者_C百科ding its purpose and why a developer should use it.[详细]
2023-03-21 15:27 分类:问答django: aggregating log entries by certain fixed time period
I have a log table in my database which holds all user actions. In this table there is a column called \'money\' which indic开发者_C百科ates how much money this user had on that day (there is also a \[详细]
2023-03-21 10:58 分类:问答AggregateException C# example
I have seen an example of AggregateException on the web and I\'m trying to figure out how it works. I have written a simple example, but my code for some reason doesn\'t work.[详细]
2023-03-21 06:39 分类:问答