In response to previous SQL lessons, TechRepublic members including Michael M. and Jason P. have posted comments requesting a basic explanation of the types of JOINs available in SQL.

These are typically SQL database applications. So many developers who learned on document databases or other NoSQL databases now need to know SQL. Get started!

By Alex RothackerLast week, a large scale SQL Injection attack dubbed LizaMoon, referencing one of the domain names used in the attack, surfaced.

Because Pivotal HD supports SQL completely, this sort of replacement is possible. Then, the company can start its experimentation with Hadoop, knowing that its investment is SQL can be preserved.

SQL Slammer and Nimda shared a particularly damaging characteristic: Both spread from the Internet to corporate intranets by exploiting vulnerabilities in desktop software.