northwind

how to implement Northwind in Django

由 那年仲夏 提交于 2020-01-14 14:29:20
问题 I am trying to implement Northwind database model in MySQL using Django-admin for displaying data. Does someone know how to do it "clean" way from original model? Is there any functional implementation to download (models, admin)? 回答1: Totally untried procedure follows. Not sure what you mean by 'clean'. Here's a few things on the internet that might help: Step 1 - export from Access to MySQL: http://www.geeksengine.com/article/export-access-to-mysql-4.html Step 2 - point django at the

Northwind SQL total orders per customer

由 穿精又带淫゛_ 提交于 2020-01-07 04:20:52
问题 I've added a column TotalOrders to the Customers table. ALTER TABLE customers ADD TotalOrders INT NULL I'm trying to find the total number of orders per customer and add that value to this column, however i can't figure out what do i need to sum exactly INSERT INTO customers (TotalOrders) SELECT SUM(...) 回答1: I think you should be using an update here. You can aggregate the total number of orders per customer in the orders table, and then update the customers table with this information.

Northwind SQL total orders per customer

由 两盒软妹~` 提交于 2020-01-07 04:20:07
问题 I've added a column TotalOrders to the Customers table. ALTER TABLE customers ADD TotalOrders INT NULL I'm trying to find the total number of orders per customer and add that value to this column, however i can't figure out what do i need to sum exactly INSERT INTO customers (TotalOrders) SELECT SUM(...) 回答1: I think you should be using an update here. You can aggregate the total number of orders per customer in the orders table, and then update the customers table with this information.

T4 for Sharp Architecture/Northwind Problem

由 。_饼干妹妹 提交于 2019-12-18 19:45:11
问题 I have just downloaded sharparchitecture/Northwind and i'm trying to get crud scaffolding to work. I have changed nothing except adding missing reference to this class library. I try to run ScaffoldingGeneratorCommand.tt and I hit following 3 errors. Error 1 Compiling transformation: Invalid token 'this' in class, struct, or interface member declaration file:BaseTemplate.tt Error 2 Compiling transformation: Class, struct, or interface method must have a return type file:BaseTemplate.tt Error

How to import an sql file of the northwind database to PostgreSQL?

由 落爺英雄遲暮 提交于 2019-12-11 06:05:31
问题 I am using the most recent version of PostgreSQL, and Pgadmin 4. And I am attempting to import this database from git: https://github.com/pthom/northwind_psql I attempted to load the sql file as a restore, and recieved this error: 回答1: This file is not intended for a pg_restore. You should to just execute it on psql. pg_restore is a utility for restoring a PostgreSQL database from an archive created by pg_dump in one of the non-plain-text formats. Take a look to create_db on GitHub shell

Get most sold product for each country from NORTHWIND database

由 江枫思渺然 提交于 2019-12-08 02:56:12
问题 Good day guys, I've been struggling with this for the past day and I just can't seem to figure it out. My task is to derive the most sold product for each country from the popular open source database called NORTHWIND: https://northwinddatabase.codeplex.com I was able to get to this stage, here is my code in SQL Server: --Get most sold product for each country WITH TotalProductsSold AS ( SELECT od.ProductID, SUM(od.Quantity) AS TotalSold FROM [Order Details] AS od GROUP BY od.ProductID )

Get most sold product for each country from NORTHWIND database

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-06 09:19:22
Good day guys, I've been struggling with this for the past day and I just can't seem to figure it out. My task is to derive the most sold product for each country from the popular open source database called NORTHWIND: https://northwinddatabase.codeplex.com I was able to get to this stage, here is my code in SQL Server: --Get most sold product for each country WITH TotalProductsSold AS ( SELECT od.ProductID, SUM(od.Quantity) AS TotalSold FROM [Order Details] AS od GROUP BY od.ProductID ) SELECT MAX(TotalProductsSold.TotalSold) AS MostSoldQuantity, s.Country --,p.ProductName FROM Products AS p

Where can I download Northwind database for Postgresql?

由 旧城冷巷雨未停 提交于 2019-12-06 00:20:07
问题 Is there a downloadable Postgres database that contains dummy data? preferably Northwind, something i can practice my query ideas 回答1: There are a number of sample databases available as a pgFoundry project at http://pgfoundry.org/projects/dbsamples/ 回答2: I was able to download the Northwind Database (for PostgreSQL) from http://www.antepedia.com/detail/p/48023267.html specifically [ deprecated: http://northwindextended.googlecode.com/files/northwind.postgre.sql ] [ updated: Oct 2016: ] https

SQL - Subquery in Aggregate Function

由 ▼魔方 西西 提交于 2019-12-04 08:46:14
问题 I'm using the northwind database to refresh my SQL skills by creating some more or less complex queries. Unfortunately I could not find a solution for my last use case: "Get the sum of the five greatest orders for every category in year 1997." The tables involved are: Orders(OrderId, OrderDate) Order Details(OrderId, ProductId, Quantity, UnitPrice) Products(ProductId, CategoryId) Categories(CategoryId, CategoryName) I have tried the following query SELECT c.CategoryName, SUM( (SELECT TOP 5

Where can I download Northwind database for Postgresql?

由 放肆的年华 提交于 2019-12-04 06:41:47
Is there a downloadable Postgres database that contains dummy data? preferably Northwind, something i can practice my query ideas There are a number of sample databases available as a pgFoundry project at http://pgfoundry.org/projects/dbsamples/ I was able to download the Northwind Database (for PostgreSQL) from http://www.antepedia.com/detail/p/48023267.html specifically [ deprecated: http://northwindextended.googlecode.com/files/northwind.postgre.sql ] [ updated: Oct 2016: ] https://code.google.com/archive/p/northwindextended/downloads Loading/accessing the database: sudo -u postgres psql ##
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