# Nivele de abstractizare

- DBA — Database (dbm-style) Abstraction Layer
  - Introducere
  - Instalarea / configurarea
  - Constante predefinite
  - Exemple
  - Funcții DBA
- dbx
  - Introducere
  - Instalarea / configurarea
  - Constante predefinite
  - Funcții dbx
- ODBC — ODBC (Unified)
  - Introducere
  - Instalarea / configurarea
  - Constante predefinite
  - Funcții ODBC
- PDO — PHP Data Objects
  - Introducere
  - Instalarea / configurarea
  - Constante predefinite
  - Connections and Connection management
  - Transactions and auto-commit
  - Prepared statements and stored procedures
  - Errors and error handling
  - Large Objects (LOBs)
  - PDO — The PDO class
  - PDOStatement — The PDOStatement class
  - PDOException — The PDOException class
  - PDO Drivers