Task: Text to Code
Input (English): Step 1: For each row in section table, find the corresponding rows in takes table.
Step 2: find section's sec_id of the results of step 1 whose takes's year not equals 2010
Output (English): SELECT T1.sec_id FROM section AS T1 JOIN takes AS T2 ON T1.year = T2.year WHERE T2.year ! = 2010