To learn PostgreSQL, you must have a basic understanding of SQL that contains queries like SELECT, INSERT, and UPDATE, etc. By knowing the usage of relational databases, it includes tables, …

This chapter discusses about how to create a new database in your PostgreSQL. PostgreSQL provides two ways of creating a new database ?

This chapter explains various methods of accessing the database. Assume that we have already created a database in our previous chapter. You can select the database using either of the following methods ?

The PostgreSQL JOINS clause is used to combine records from two or more tables in a database. A JOIN is a means for combining fields from two tables by using values common to each.

Before we start using PostgreSQL in our Java programs, we need to make sure that we have PostgreSQL JDBC and Java set up on the machine. You can check Java tutorial for Java installation …

Jul 11, 2023 · PostgreSQL is one of the most popular database management systems available today. It was first released in 1989 as an open-source project and has since become the go-to choice for …

PostgreSQL functions, also known as Stored Procedures, allow you to carry out operations that would normally take several queries and round trips in a single function within the database.

PostgreSQL has the data types smallserial, serial and bigserial; these are not true types, but merely a notational convenience for creating unique identifier columns. These are similar to …

The PostgreSQL AND and OR operators are used to combine multiple conditions to narrow down selected data in a PostgreSQL statement. The AND operator is called logical conjunction/conjunctive …

Sep 13, 2023 · Using the SQL's ORM capabilities, one can write code in python that interacts with the PostgreSQL database in a more expressive way. Hence, if you are a python developer and looking …