8 calls to db_and()

hook_query_TAG_alter in drupal-7.x/modules/system/system.api.php
Perform alterations to a structured query for a given tag.
node_access in drupal-7.x/modules/node/node.module
Determines whether the current user may perform the operation on the node.
node_access_view_all_nodes in drupal-7.x/modules/node/node.module
Determines whether the user has a global viewing grant for all nodes.
SearchQuery::parseSearchExpression in drupal-7.x/modules/search/search.extender.inc
Parses the search query into SQL conditions.
_block_rehash in drupal-7.x/modules/block/block.module
Updates the 'block' DB table with the blocks currently exported by modules.
_locale_translate_seek in drupal-7.x/includes/locale.inc
Perform a string search and display results in a table
_menu_navigation_links_rebuild in drupal-7.x/includes/menu.inc
Builds menu links for the items in the menu router.
_node_query_node_access_alter in drupal-7.x/modules/node/node.module
Helper for node access functions.