Surrogate keys let software developers identify records uniquely in cases where it is impossible to use natural keys. However, what exactly is a surrogate key in SQL? What advantages and disadvantages does it bring? And, finally, how should you apply it? This article is going to explore all these questions.
In this article, we are going to talk about the MySQL SUBSTRING() function with its variations. Here, you will find a detailed guide with the basic syntax and examples of how to use this function. Moreover, we will demonstrate the benefits of MySQL coding in a handy IDE - dbForge Studio for MySQL that can help you save a lot of time and energy.
The article will overview the TRUNCATE TABLE statement in SQL on particular examples and describe the differences between the TRUNCATE, DELETE, and DROP statements.
When...
Testing is an integral element of the development process for every application. There are many types of tests such as unit tests, integration tests,...
Formatting makes SQL code accurate, readable, understandable, and standardized for teams and individuals. SQL formatter is a tool that beautifies code automatically. Formatting tools...
Foreign keys help normalize data in databases and reduce redundancy. In fact, it is the FOREIGN KEY mechanism that provides the relationality of relational...