15 calls to db_next_id() in Drupal 4

aggregator_save_category in modules/aggregator.module

Add/edit/delete aggregator categories.

aggregator_save_feed in modules/aggregator.module

Add/edit/delete an aggregator feed.

aggregator_save_item in modules/aggregator.module

comment_save in modules/comment.module

Accepts a submission of new or changed comment content.

drupal_client_ping in modules/drupal.module

Callback function from drupal_xmlrpc() called when another site pings this one.

menu_save_item in modules/menu.module

Save a menu item to the database.

node_save in modules/node.module

Save a node object into the database.

system_update_146 in database/updates.inc

system_update_151 in database/updates.inc

system_update_159 in database/updates.inc

Retrieve data out of the old_revisions table and put into new revision system.

taxonomy_save_term in modules/taxonomy.module

taxonomy_save_vocabulary in modules/taxonomy.module

upload_save in modules/upload.module

user_admin_access_add in modules/user.module

Menu callback: add an access rule

user_save in modules/user.module

Save changes to a user account or add a new user.