Run SQL queries in PostgreSQL. To begin with, let’s try looking at a single table. ... Inner joins require that both sides be present in order to return the row in the result; ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and ...

I'm writing some code in C# where I need to (inner?) join two tables into a DataSet / DataTable.Essentially, I have two tables. Both have columns called "TestId" and "OperationId". Both are ...

I'm doing a package tracking feature for the website of a delivery service out here. I'm trying to perform an inner join based on the success of an if statement in my sql query. However i keep ...

AWS today announced a new database product that is clearly meant to go after Microsoft’s SQL Server and make it easier — and cheaper — for SQL Server users to migrate to the AWS cloud.

The SQL injection allowed the attacker to freely use psql, an interactive interface that comes with PostgreSQL, and to not only access the database but also enter arbitrary system commands via psql.

MariaDB and SQLite allow you to use single or double quotes interchangeably for most quoted text in queries. PostgreSQL is pickier, because it tries to stay closer to the ANSI SQL standard, which says ...

DB2, Microsoft SQL Server, Oracle and PostgreSQL all support recursive queries using CTEs. Note that Oracle also offers an alternative syntax using the CONNECT BY construct, which we will not discuss ...