A check constraint in a database is a rule that ensures that data meets a specific condition by restricting what data can be stored in a column. An example could be when creating a table in SQL ...

In this article, we will explain the basics of triggers and constraints, their similarities and differences, and some examples of how to create and apply them in SQL. A trigger is a special type ...

ALTER TABLE artist_credit_name ADD CONSTRAINT artist_credit_name_artist_credit FOREIGN KEY (artist_credit) REFERENCES artist_credit (id); ALTER TABLE artist_credit ...

Following these steps will create a new ASP.NET Core MVC project in Visual Studio 2019. We’ll use this project in the sections below to illustrate how we can use route constraints in ASP.NET ...

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SQL Server allows you to define cascading referential integrity constraints ... ID('SalesHistory') > 0 DROP TABLE SalesHistory GO CREATE TABLE SalesHistory SaleID int IDENTITY(1,1) NOT NULL ...

Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database table and index structures. Maintain table data integrity through constraints. Understand how to ...