Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

A join can be inner, outer, left, right, or cross, depending on how you want to match the rows from different tables. For example, you can use a join to find the name and address of customers who ...

Inquire about creating tables, adding data, altering table structures and backing up databases to become proficient in database administration. Advanced SQL topics As your SQL skills progress ...

When you execute a query using the RIGHT JOIN syntax, SQL does two things: It returns all of the records from both tables that contain matching values, as defined by the ON clause.

Fetching data from the database takes a lot time process. eventually when you need to combine multiple tables in order to fetch the data, reducing database calls becomes very meaningful. although in ...

Now with the introduction of the new method “DROP IF EXISTS” in SQL Server 2016 developers can write brief code. First, create a database named “appuals”. Creating a database. Now, we will create a ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...

The SQL 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. Consider the following two ...

Learn the pros and cons of subqueries and joins in SQL, and how to decide when to use them in your database development projects. Agree & Join LinkedIn ...