Table: tweenies_chart_data
Columns: title
entered_chart_uk
peak_position_uk
weeks_on_chart_uk
sent_to_cbeebies_album

Question: How many weeks did the single that entered the charts 14 september 2002 stay on the charts ?
SQL: SELECT COUNT("weeks_on_chart_uk") FROM tweenies_chart_data WHERE "entered_chart_uk" = '14 september 2002'

Question: Which single was on the Charts for 23 weeks ?
SQL: SELECT "title" FROM tweenies_chart_data WHERE "weeks_on_chart_uk" = 23