You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' l1_change=-100, l2_close=0, l2_change=0, l3_close=0, l3_change=0, s1_close=0, s' at line 1UPDATE fwf2016_funds SET l1_close=, l1_change=-100, l2_close=0, l2_change=0, l3_close=0, l3_change=0, s1_close=0, s1_change=0, s2_close=0, s2_change=0, s3_close=0, s3_change=0, overall_change=-100 WHERE owner="Benchmark"