Third Printing. For a list of corrections included in this release, please see errata.

• Second Printing

• FIrst printing

• All content complete, on its way to copyedit and typeset

• Last beta before production.

New chapters:

• Chapter 13: Index Shotgun
• Appendix A

All content now complete.

This Beta release adds the following new chapters:

. Chapter 5, Keyless Entry . Chapter 24, Diplomatic Immunity . Chapter 25, Magic Beans

This Beta release adds five chapters:

• Chapter 4, ID Required, on page 45 • Chapter 8, Multi-Column Attributes, on page 87 • Chapter 9, Metadata Tribbles, on page 95 • Chapter 22, Pseudokey Neat-Freak, on page 225 • Chapter 23, See No Evil, on page 233

This Beta release adds four chapters: • Chapter 6, Entity-Attribute-Value, on page 47 • Chapter 7, Polymorphic Associations, on page 63 • Chapter 11, 31 Flavors, on page 91 • Chapter 12, Phantom Files, on page 99