LMDB Cursors

Note

Status: This page is under development.

Guide to using LMDB cursors for efficient iteration and positioning within databases.

Overview

Cursors provide fine-grained control over database traversal:

  • Efficient iteration over key ranges

  • Positioning at specific keys

  • Forward and reverse traversal

  • Duplicate key handling

Coming Soon

This page will cover:

  1. Creating Cursors - Opening cursors within transactions - Cursor lifecycle - Context managers

  2. Navigation Methods - first(), last() - next(), prev() - set_key(), set_range()

  3. Iteration Patterns - Forward iteration - Reverse iteration - Range queries - Key prefix matching

  4. Cursor Operations - Reading key/value pairs - Updating at cursor position - Deleting at cursor position

  5. Advanced Features - Duplicate keys (dupsort) - Cursor positioning strategies - Performance optimization

See Also