Added A Primer on SQL, Second Edition.
Merge pull request #881 from JALsnipe/master

Added A Primer on SQL, Second Edition.
ada: Add 'A Guide to Ada for C and C++ Programmers'
Merge pull request #882 from psyomn/master

ada: Add 'A Guide to Ada for C and C++ Programmers'
Alphabetize a few more lists
Merge pull request #883 from jwworth/task/alphabetize

Alphabetize a few more lists