CREATE TABLE table_11734041_1 (years_for_rockets VARCHAR2, position VARCHAR2, school_club_team_country VARCHAR2)

How many times did a center that attended Oral Roberts play for the Rockets?
SELECT COUNT(years_for_rockets) FROM table_11734041_1 WHERE position = "Center" AND school_club_team_country = "Oral Roberts"
SELECT COUNT("years_for_rockets") FROM "table_11734041_1" WHERE "Center" = "position" AND "Oral Roberts" = "school_club_team_country"