Database API Overview
Documentation for Database API in Drupal 8.
General Concepts
The Drupal database layer is built on top of the PHP's PDO library. PDO provides a unified, object-oriented API for accessing different
Database Configuration
Database Configuration
Instantiating a Database Connection Object
Instantiating a Database Connection Object
Static Queries
Static Queries
Dynamic Queries
Dynamic queries in Drupal 8 Database API.
Result Sets
Result Sets
Fetching Into a Custom Class
Fetching Into a Custom Class
Insert Queries
Insert Queries
Update Queries
Update Queries
Merge Queries
Merge Queries
Upsert Queries
Upsert Queries
Delete Queries
Delete Queries
Database Transactions
Transactions
Error Handling
Error Handling
Functions and Operators
Functions and Operators