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SQL Coalesce — Weeding Through The NULLs

Relational databases store information in tables — with columns that are analogous to elements in a data...

An Introduction to Relational Databases and SQL

The term “databases” has filtered through to the common consciousness, from police procedurals where characters search through national...

SQL — Structured Query Language — Hub

SQL (Structured Query Language) — pronounced “sequel” or “ess queue ell” — is a computer programming language...