UPDATE tableName SET columnName = yourValue;
#to update multiple columns:
UPDATE tableName SET column1 = value1, column2 = value2; #and so onUPDATE t1 LEFT JOIN t2 ON t1.id = t2.f_key
SET t1.value = t1.value + 1,
t2.value = t2.value + 1
WHERE t1.id = conditionUPDATE [LOW_PRIORITY] [IGNORE] table_name
SET
column_name1 = expr1,
column_name2 = expr2,
...
[WHERE
condition]; update tabe2 set subject_id = (SELECT GROUP_CONCAT(sub_id SEPARATOR ', ') as sub_id FROM tabe1)