# sum

##### MySQL SUM multiple columns

I have another question about sum. I'd like to sum the scored of a baseball team, adding the scored when playing as local with the score when playing as visitor. The matches table is like this: Baseball_matches (Id, IdTeamHome, IdTeamAway, ScoreHome, ScoreAway, Status) I'd like to group by Team, showing the total score for each team by adding the scored of matches that have the status os "played" For each team: SUM ScoreHome when IdTeamHome + SUM ScoreAway when IdTeamAway How can I do this? Thanks.

2021-06-24 08:25:05    分类:问答    mysql   sum

##### python function to find sum of positive numbers in an array

i need to write a function that takes an array of numbers and finds the maximum sum of all the numbers. In other words, I need to find the sum of just the positive numbers. I wrote this, I'm getting "list is out of range" thoughts? def maximum_sub(A): x = 0 i = 0 for i in A: while A[i] > 0: x+=A[i] i+=1 return x

2021-06-24 06:55:09    分类:问答    python   arrays   sum

##### Java 8 Stream 将元素添加到列表和求和(Java 8 Stream add elements to list and sum)

2021-06-24 06:53:34    分类:技术分享    java   collections   java-8   sum   java-stream

##### 为什么 2 个 parseFloat 变量的总和给我一个不正确的十进制数 [重复](Why does the sum of 2 parseFloat variables give me an incorrect decimal number [duplicate])

2021-06-24 02:04:44    分类:技术分享    javascript   function   sum

##### 如何在 Python 3.5 中找到给定范围内的素数之和？(How do I find the sum of prime numbers in a given range in Python 3.5?)

2021-06-23 23:50:57    分类:技术分享    python   sum   primes

##### 算法将数组拆分为子数组，其中所有子数组中的最大和尽可能低(Algorithm splitting array into sub arrays where the maximum sum among all sub arrays is as low as possible)

2021-06-23 21:56:32    分类:技术分享    arrays   algorithm   split   sum   min

##### C# LINQ : Dynamically create property and values that includes sum of a value from a grouped query

My Title is slightly confusing so I will explain it here. This is my sample query and what I wish to achieve: var results = from row in toSearch.AsEnumerable() group by row.Field<String>("Somename") into grp select new { GroupMe = grp.Key, foreach (var k in someDic.Keys){ TODOPROPERTYNAMEFROMk = grp.sum(x => grp.k); } }; This is the general idea of what I want to achieve. Based on a dictionary of keys, I want to create property names from it while summing up the data from the grouped query. The sum will be based off the value of the keys. toSearch is a datatable and all of the keys of the

2021-06-23 17:43:07    分类:问答    c#   arrays   linq   select   sum

##### SUM values in SQL starting from a specific point in another table

I have a table that lists the index/order, the name, and the value. For example, it looks like this: TABLE1: ID | NAME | VALUE 1 | A | 2 2 | B | 5 3 | C | 2 4 | D | 7 5 | E | 0 Now, I have another table that has a random list of NAMEs. It'll just show either A, B, C, D, or E. Depending on what the NAME is, I wanted to calculate the SUM of all the values that it will take to get to E. Does that make sense? So if for example, my table looks like this: TABLE2: NAME D B A I'd want another column next to NAME that'll show the sum. So D would have 7 because the next event is E. B would have to be

2021-06-23 16:57:33    分类:问答    sql   sql-server   database   sum   nested-queries

##### 从 2 个不同的表中计算（数量*价格）的总和(Calculating the SUM of (Quantity*Price) from 2 different tables)

2021-06-23 13:29:13    分类:技术分享    sql   sum

##### 此 SP 中“SUM”附近的“语法不正确”在哪里？(Where is the 'Incorrect syntax near 'SUM'' in this SP?)

2021-06-23 11:03:18    分类:技术分享    sql-server   stored-procedures   sum