### Start Device Groups ###
SQL[SELECT * FROM device_groups ORDER BY name] 
SQL[SELECT 1 FROM information_schema.COLUMNS WHERE TABLE_NAME = 'device_perf' && COLUMN_NAME = 'device_id'] 
SQL[SELECT DISTINCT(device_perf.device_id) FROM device_perf WHERE  device_perf.device_id='4415' AND (device_perf.avg >= 120 ) LIMIT 1] 
SQL[ LIMIT 1] 
MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LIMIT 1' at line 1 ( LIMIT 1)
SQL[ LIMIT 1] 
MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LIMIT 1' at line 1 ( LIMIT 1)
SQL[ LIMIT 1] 
MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LIMIT 1' at line 1 ( LIMIT 1)