将值插入php列中的所有行

Question

I wanted to overwrite all the values in the Project1 column with 0 . Is there a way to do this ? Like all the students in studentid will all have 0 values in Project1 .

Answer 1

You have to use an update query .

For your example:

UPDATE `TABLE_NAME` SET `Project1` = 0

Answer 2

要做：

UPDATE table_name SET Project1=0

Answer 3

Just omit where clause in Mysql, run this

update `mytable` set
`Project1` = 0
;