CONTENTS

• NAME
• SYNOPSIS
• DESCRIPTION
  • Using DB_File with Berkeley DB version 2 or greater
  • Interface to Berkeley DB
  • Opening a Berkeley DB Database File
  • Default Parameters
  • In Memory Databases
• DB_HASH
  • A Simple Example
• DB_BTREE
  • Changing the BTREE sort order
  • Handling Duplicate Keys
  • The get_dup() Method
  • The find_dup() Method
  • The del_dup() Method
  • Matching Partial Keys
• DB_RECNO
  • The 'bval' Option
  • A Simple Example
  • Extra RECNO Methods
  • Another Example
• THE API INTERFACE
• DBM FILTERS
  • The Filter
  • An Example -- the NULL termination problem.
  • Another Example -- Key is a C int.
• HINTS AND TIPS
  • Locking: The Trouble with fd
  • Safe ways to lock a database
  • Sharing Databases With C Applications
  • The untie() Gotcha
• COMMON QUESTIONS
  • Why is there Perl source in my database?
  • How do I store complex data structures with DB_File?