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Tutorials under 'Data Types'

Tables, Columns, and Data Types: Building Blocks of Relational Databases

Learn the fundamentals of tables, columns, and data types with SQL examples, best practices, optimization tips, and real-world use cases for efficient database design.

Oracle Columns Varchar Database Fundamentals Integer Relational Databases Sql Database Design Tables Primary Key Postgresql Normalization Mysql Data Types

java-data-types-primitive-vs-non-primitive

Java Data Types: Complete Guide to Primitive and Non‑Primitive Types

Understand Java data types in depth—learn the memory size, range, default values, and use‑cases of all primitive types as well as strings, arrays, and classes.

Java Basics Java Non Primitive Types Data Types Primitive Types