running-total

问题 I have a table like this (Oracle, 10) Account Bookdate Amount 1 20080101 100 1 20080102 101 2 20080102 200 1 20080103 -200 ... What I need is new table grouped by Account order by Account asc and Bookdate asc with a running total field, like this: Account Bookdate Amount Running_total 1 20080101 100 100 1 20080102 101 201 1 20080103 -200 1 2 20080102 200 200 ... Is there a simple way to do it? Thanks in advance. 回答1: Do you really need the extra table? You can get that data you need with a

问题 I have a table: create table Transactions(Tid int,amt int) With 5 rows: insert into Transactions values(1, 100) insert into Transactions values(2, -50) insert into Transactions values(3, 100) insert into Transactions values(4, -100) insert into Transactions values(5, 200) Desired output: TID amt balance --- ----- ------- 1 100 100 2 -50 50 3 100 150 4 -100 50 5 200 250 Basically for first record balance will be same as amt , 2nd onwards balance would be addition of previous balance + current

问题 Hi I was wondering if someone could explain how to to make this method diplay a running count and average, and not just display it once the user has finished entering its data? public void InScreen() { int count = 0; double total = 0.0; double average = 0.0; double number; Console.WriteLine("Enter the set of scores (enter 0 to indicate end of set)"); number = double.Parse(Console.ReadLine()); while(number != 0) { total += number; count++; number = double.Parse(Console.ReadLine()); } if (count

问题 Please have a look at my spreadsheet: https://docs.google.com/spreadsheets/d/1K5Btg5fFS590G7vZsFiepY-2VTPhzJIlkKK_o-9Ag7E/edit?usp=sharing How do I get: C2 to show Start weight (i.e. "100,0") C3 to show C2 - Daily weightloss (i.e. "99,7701") C4 to show C3 - Daily weightloss (i.e. "99,5402) C5 to show C4 - Daily weightloss (i.e. "99,3103") ...and so on. The challenge is obviously to do this dynamically since all the user-submitted data, and consequently, all the calculated data might change. I

问题 i just want to create an sql query and the result is something like on the image., something like Fibonacci sequence in SQL. Ex. Column 1: 10 , then the value of Result column is Result: 10 , since that is the first row. , then assuming that the value of column1 2nd row is 50, then the value of Result 2nd row will be 60.. (Result: 60).. and so on. Sample is the image below. How can i do that continuously ? any help would be appreciated. Thanks 回答1: If you are using MSSQL2012 or higher you can

问题 I am trying to think of a way on a SQL Server 2008 database to run through a sales order table and get open demand for a part, order it by due date, then look at a purchase order table and fulfill the sales orders by PO, ordering the PO supply by due date as well. At the same time, I need to show what PO(s) are fulfilling the sales order. For example: SO table SO# DueDate Part Number Required QTY --------------------------------------------- 100 9/3/16 1012 2 101 9/12/16 1012 1 107 10/11/16

问题 I have a data set of this format User 1 2 3 2 3 1 1 Now I want to add a column saying count which counts the occurrence of the user. I want output in the below format. User Count 1 1 2 1 3 1 2 2 3 2 1 2 1 3 I have few solutions but all those solutions are somewhat slow. Running count variable in R My data.frame has 100,000 rows now and soon it may go up to 1 million. I need a solution which is also fast. 回答1: You can use getanID from my "splitstackshape" package: library(splitstackshape)

问题 I want to calculate Perpetual Weighted Average cost for inventory. I tried to understand a solution on following link Inventory Average Cost Calculation in SQL but cannot get it, it is complex for me. here is my database details. Purch_ID Item_ID QTY Unit_Price 01 1 10 10 02 2 10 20 03 3 20 15 04 2 10 20 05 1 10 18 06 2 25 17 I want to calculate the Weighted Average cost after each Purchase using following formula ((old_stock x Old unit price)+(New_Purchase_qty x New unit price))/(old stock

问题 So real simple problem that I just can't seem to figure out. I'm just learning so sorry if this is obvious. Has to out put 7 times tables and give a running total at the end. Here's what I have: document.write("<h3>7 times tables</h3>"); document.write("<ul>"); i=1; seven=7; while(i < 13) { Seven= i * seven; document.writeln("<li>" + i + " times 7 = " + Seven); var result=new Array(6) result[1]=Seven; i++; } document.writeln("</ul>"); document.write("<strong>The sum do far is"+result[1]+"<

问题 Working in angularjs and looking to keep a running total based on a value retrieved from the data. The following code always returns the full total value for all items. <div ng-repeat="child in pItem.childItems | orderBy:'displayOrder'" ng-init="$parent.totalValue = $parent.totalValue + child.field[0].value"> Changing that from the parent scope to the child clears the totalValue on each repeat. So the value always equals the child value just for that one item. I'm looking for something which