SQL Core Syntax, Query Patterns, and Common Development Pitfalls
Fundamental Data Types and Storage Classes
Understanding how relational databases store information is critical for schema design. The most frequently utilized data categories include:
Data Type
Purpose & Characteristics
INT / BIGINT
Stores whole numbers. Suitable for primary keys, counts, and identifiers.
DECIMAL(m, n)
Fixed-point ...
Posted on Sat, 13 Jun 2026 16:37:10 +0000 by haixiao