Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain actions when a primary key field in a primary key-foreign key relationship is updated or ...

As you continue to explore the intricacies of table structures, understanding the role and functionality of constraints becomes essential. Constraints are rules that we apply to data columns in a ...

SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale. One of the most fundamental choices to make when developing an ...

create table snapdeal_orders ( order_Id int not null, -- now we can not add null value in column order_id , not null constraint order_date date, -- "yyyy-mm-dd" is standard format product_name varchar ...