Schema API functions
Last modified: January 14, 2009 - 12:05
The Schema API defines a number of functions for manipulating the database schema. These functions all operate directly on the database at the time they are called. They are generally most useful in writing hook_update_N() functions which need to incrementally update a database from one schema to another.
A full list of Schema API functions is available here.
- db_add_field
- db_add_index
- db_add_primary_key
- db_add_unique_key
- db_change_field
- db_create_table
- db_create_table_sql
- db_drop_field
- db_drop_index
- db_drop_primary_key
- db_drop_table
- db_drop_unique_key
- db_field_set_default
- db_field_set_no_default
- db_rename_table
- drupal_get_schema
- drupal_get_schema_unprocessed
- drupal_install_schema
- drupal_uninstall_schema