Upgrade PostgreSQL 9.X to 12.X in Windows
Learn how you can upgrade a PostgreSQL server and ensure your databases follow to the new version.
2021-02-09
40,316 reads
Learn how you can upgrade a PostgreSQL server and ensure your databases follow to the new version.
2021-02-09
40,316 reads
In this article we look at the different SQL syntax you need to use when updating data when joining tables for SQL Server, Oracle and PostgreSQL.
2021-01-29
This article covers how to install PostgreSQL on the macOS.
2020-11-19
3,348 reads
PostgreSQL is a free database management system (DBMS). PostgreSQL 11 is the new version of this DBMS. We will take a look at how to install PostgreSQL 11 on Windows. This article covers where to download PostgreSQL 11, how the installation process looks like, and how to connect to the PostgreSQL server. Step-by-Step Installation on Windows […]
2020-09-03
17,030 reads
PosgtreSQL is a free and general purpose open source object-relational database system that uses and extends the SQL language. Though originally designed to run on UNIX platforms, Postgres is able to run on various platforms, such as macOS, Solaris, Windows, Unix, and Linux. PostgreSQL databases provide enterprise-class database solutions and are used by a wide […]
2020-05-11
9,472 reads
By Chris Yates
I am excited to cover the Microsoft Keynote on Day 2: Redgate Keynote: Simplifying...
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By James Serra
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Hi, In my Always On Availability environment, I am seeing two encrypt_option values as...
Hi everyone I have a bunch of CSV files that I need to bulk...
I have this data in a SQL Server 2019 database:
Customer table CustomerID CustomerName 1 Steve 2 Andy 3 Brian 4 Allen 5 Devin 6 Sally OrderHeader table OrderID CustomerID OrderDate 1 1 2024-02-01 2 1 2024-03-01 3 3 2024-04-01 4 4 2024-05-01 6 4 2024-05-01 7 3 2024-06-07 8 2 2024-04-07I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned?
SELECT c.CustomerName, COUNT(oh.OrderID) FROM dbo.Customer AS c LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID WHERE oh.Orderdate > '2024/04/01' GROUP BY c.CustomerNameSee possible answers