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Data Definition

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May 1, 2024 3 minute read

Data definition is the process of creating a structure for data, including the definition of data types, sizes, and constraints. It is an important part of database design, as it ensures that the data is stored in a consistent and efficient manner.

Data Definition Methods

There are two main methods for data definition: physical and logical.

Physical data definition defines the physical storage of the data, including the file format, data types, and field lengths. Logical data definition defines the logical structure of the data, including the tables, columns, relationships, and constraints.

Data Definition Languages

Path to Data Definition

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Performing Data Definition and Manipulation in SQL

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SQL - The Complete Developer's Guide (MySQL, PostgreSQL)

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Reading list

We've selected six books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Data Definition.

SQL Server 2017 Query Performance Tuning

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Provides a comprehensive overview of SQL, including data definition and manipulation. It valuable resource for beginners who want to learn how to use SQL to manage data in a database.

SQL Server 2017 Query Performance Tuning:...

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