Anomalies


Things that might not be 'quite right' about your database and schema

Columns whose name and type imply a relationship to another table's primary key

Child Column Implied Parent Column
assign_grades.[userid] user.[id]
assign_submission.[userid] user.[id]
assignment_submissions.[userid] user.[id]
backup_courses.[courseid] course.[id]
block_recent_activity.[courseid] course.[id]
block_rss_client.[userid] user.[id]
chat_messages.[userid] user.[id]
chat_messages_current.[userid] user.[id]
chat_users.[userid] user.[id]
choice_answers.[userid] user.[id]
comments.[contextid] context.[id]
competency.[scaleid] scale.[id]
competency_evidence.[contextid] context.[id]
competency_framework.[contextid] context.[id]
competency_framework.[scaleid] scale.[id]
competency_plan.[userid] user.[id]
competency_template.[contextid] context.[id]
competency_templatecohort.[cohortid] cohort.[id]
competency_usercomp.[userid] user.[id]
competency_usercompcourse.[courseid] course.[id]
competency_usercompcourse.[userid] user.[id]
competency_usercompplan.[userid] user.[id]
competency_userevidence.[userid] user.[id]
competency_userevidencecomp.[userevidenceid] user.[id]
course_completion_crit_compl.[userid] user.[id]
course_completions.[userid] user.[id]
course_modules_completion.[coursemoduleid] course.[id]
course_modules_completion.[userid] user.[id]
data_records.[userid] user.[id]
editor_atto_autosave.[contextid] context.[id]
editor_atto_autosave.[userid] user.[id]
enrol.[roleid] role.[id]
event.[courseid] course.[id]
event.[userid] user.[id]
event_subscriptions.[courseid] course.[id]
event_subscriptions.[userid] user.[id]
feedback_completed.[courseid] course.[id]
feedback_completed.[userid] user.[id]
feedback_completedtmp.[courseid] course.[id]
feedback_completedtmp.[userid] user.[id]
feedback_sitecourse_map.[courseid] course.[id]
forum_discussions.[userid] user.[id]
forum_posts.[userid] user.[id]
forum_queue.[userid] user.[id]
forum_read.[userid] user.[id]
forum_subscriptions.[userid] user.[id]
forum_track_prefs.[forumid] forum.[id]
glossary_entries.[userid] user.[id]
grade_import_values.[userid] user.[id]
grade_letters.[contextid] context.[id]
lesson_attempts.[userid] user.[id]
lesson_branch.[userid] user.[id]
lesson_grades.[userid] user.[id]
lesson_timer.[userid] user.[id]
logstore_standard_log.[contextinstanceid] context.[id]
logstore_standard_log.[courseid] course.[id]
logstore_standard_log.[userid] user.[id]
lti_submission.[userid] user.[id]
ltiservice_gradebookservices.[courseid] course.[id]
mnet_log.[userid] user.[id]
mnet_session.[userid] user.[id]
mnetservice_enrol_courses.[roleid] role.[id]
post.[courseid] course.[id]
post.[coursemoduleid] course.[id]
post.[userid] user.[id]
question_categories.[contextid] context.[id]
question_response_analysis.[questionid] question.[id]
quiz_grades.[userid] user.[id]
rating.[scaleid] scale.[id]
repository_instances.[contextid] context.[id]
repository_instances.[userid] user.[id]
scale.[courseid] course.[id]
scale.[userid] user.[id]
scale_history.[userid] user.[id]
scorm_scoes_track.[userid] user.[id]
search_simpledb_index.[contextid] context.[id]
search_simpledb_index.[courseid] course.[id]
search_simpledb_index.[userid] user.[id]
stats_daily.[courseid] course.[id]
stats_daily.[roleid] role.[id]
stats_monthly.[courseid] course.[id]
stats_monthly.[roleid] role.[id]
stats_user_daily.[courseid] course.[id]
stats_user_daily.[roleid] role.[id]
stats_user_daily.[userid] user.[id]
stats_user_monthly.[courseid] course.[id]
stats_user_monthly.[roleid] role.[id]
stats_user_monthly.[userid] user.[id]
stats_user_weekly.[courseid] course.[id]
stats_user_weekly.[roleid] role.[id]
stats_user_weekly.[userid] user.[id]
stats_weekly.[courseid] course.[id]
stats_weekly.[roleid] role.[id]
survey_analysis.[userid] user.[id]
survey_answers.[userid] user.[id]
task_log.[userid] user.[id]
tool_cohortroles.[cohortid] cohort.[id]
tool_cohortroles.[roleid] role.[id]
tool_cohortroles.[userid] user.[id]
tool_monitor_events.[contextid] context.[id]
tool_monitor_events.[contextinstanceid] context.[id]
tool_monitor_events.[courseid] course.[id]
tool_monitor_history.[userid] user.[id]
tool_monitor_rules.[courseid] course.[id]
tool_monitor_rules.[userid] user.[id]
tool_monitor_subscriptions.[courseid] course.[id]
tool_monitor_subscriptions.[userid] user.[id]
user_lastaccess.[courseid] course.[id]
wiki_locks.[userid] user.[id]
wiki_pages.[userid] user.[id]
wiki_subwikis.[userid] user.[id]
wiki_versions.[userid] user.[id]
workshopform_rubric_config.[workshopid] workshop.[id]

Tables without indexes

Table Rows
Anomaly not detected

Tables that contain a single column

Table Column
Anomaly not detected

Tables with incrementing column names, potentially indicating denormalization

Table
assignment
assignment_submissions
data_content
data_fields
enrol
enrol_paypal
grade_items
grade_items_history
quiz
search_simpledb_index
stats_daily
stats_monthly
stats_weekly
survey_answers
user
user_info_field
workshopform_numerrors

Columns whose default value is the word 'NULL' or 'null'

Table
Anomaly not detected