_drupal_schema_initialize(&$schema, $module, $remove_descriptions = TRUE) Fills in required default values
drupal_schema_get_field_value(array $info, $value) Typecasts values to proper datatypes.
drupal_get_schema_versions($module) Returns an array of available schema versions for a module.
drupal_get_module_schema($module, $table = NULL) Returns a module's schema. This
drupal_uninstall_schema($module) Removes all tables defined in a module's
drupal_install_schema($module) Creates all tables defined in a module's
drupal_get_installed_schema_version($module, $reset = FALSE, $array = FALSE) Returns the currently installed
Indicates that a module has not been installed yet. Related topics
Schema API handling functions. File core/includes/schema.inc Functions
drupal_set_installed_schema_version($module, $version) Updates the installed version information for a module