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School of Programming

Controlling Execution Contexts with Javascript Global Scope and Javascript Variable Scopes

Variables and code instructions have specific contexts — or “scope” — when executing a Javascript program. The...

SQL Injection — All Your Data Are Ours

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

SQL Aggregate Functions — AVG, COUNT, DISTINCT, MAX, MIN, SUM

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 Like — Wildcards Empower Searching

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

SQL Top Limit Fetch RowNum — Too Much Of A Good Thing

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