SELECT * FROM customers; -- select all columns from the "customers" table SELECT first_name, last_name FROM customers; -- select only the "first_name" and "last_name" columns from the "customers" ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

To provide you with a broader perspective on the various types of databases, we will give a general overview. However, for this particular discussion, we will focus specifically on SQL databases. Not ...

This tutorial will guide you through the process of using SQL databases with Python, focusing on MySQL as the database management system. You will learn how to set up your environment, connect to a ...

PL/SQL stands for Procedural Language extension of SQL. PL/SQL is a combination of SQL along with the procedural features of programming languages. It was developed by Oracle Corporation in the early ...

If you work with data but find programs like Excel too limiting, learning SQL may be the next step on your data journey. This tutorial will show you the basics of SQL, a tool used by programmers, ...

Step-By-Step: Learn the basics of using DTS in Microsoft SQL Server Your email has been sent Learn how Data Transformation Services (DTS) can help you import, export, and/or transform data from ...

The SQL Developer unit testing framework involves a set of sequential steps for each test case. The steps are as follows, including the user input for before the step is run and the framework ...