18. Database: SQL, MySQL, LINQ and Java DB

It is a capital mistake to theorize before one has data.

—Arthur Conan Doyle

Now go, write it before them in a table, and note it in a book, that it may be for the time to come for ever and ever.

—The Holy Bible, Isaiah 30:8

Get your facts first, and then you can distort them as much as you please.

—Mark Twain

I like two kinds of men: domestic and foreign.

—Mae West

Objectives

In this chapter, you’ll:

• Learn fundamental relational database concepts.

• Learn Structured Query Language (SQL) capabilities for retrieving data from and manipulating data in a database.

• Configure a MySQL user account.

• Create MySQL databases.

• Learn fundamental concepts of Microsoft’s Language Integrated Query (LINQ)

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