6 calls to drupal_get_schema_versions()

drupal_install_system in drupal/core/includes/install.inc
Installs the system module.
Module::getSchemaUpdates in drupal/core/lib/Drupal/Core/Updater/Module.php
Returns available database schema updates once a new version is installed.
ModuleHandler::enable in drupal/core/lib/Drupal/Core/Extension/ModuleHandler.php
Enables or installs a given list of modules.
system_requirements in drupal/core/modules/system/system.install
Test and report Drupal installation requirements.
update_get_update_function_list in drupal/core/includes/update.inc
Returns an organized list of update functions for a set of modules.
update_get_update_list in drupal/core/includes/update.inc
Returns a list of all the pending database updates.