Structured Query Language (SQL) is a standard for communicating with a database that is maintained by ANSI. The latest version is SQL-99, though a new standard is in the works (SQL-200n).

Cost: $45 to $275 (depending on the course) Training Overview: General Assembly offers a hefty amount of SQL-related classes, ranging from a few hours to a few days. The two-and-a-half hour “SQL for ...

This is the dreaded "SQL Injection Attack" you keep hearing about on the nightly news. Beyond these data issues, the query as defined brings with it some performance issues, especially at the database ...