Description: The type definition specifies the data types that can be used in a database. This concept is fundamental in programming and database design, as it allows developers and database management systems (DBMS) to understand how data should be stored, manipulated, and validated. Data types can include integers, text strings, dates, booleans, among others. Each data type has specific characteristics that determine how it behaves in operations such as comparison, arithmetic, and conversion. For example, an integer data type cannot contain decimals, while a string data type can contain alphanumeric characters. Type definition also helps prevent errors in data manipulation by ensuring that only valid operations are performed on the data. Additionally, in programming languages, type definition is crucial for creating data structures and implementing algorithms, allowing programmers to clearly define what type of data is expected in each context. In the context of APIs like GraphQL, type definition allows developers to specify the shape of the data that can be queried and manipulated, facilitating communication between the client and the server.
