Preventing MySQL from inserting implicit default values into not null columns

Question

I am trying to use multiple inserts (in one statement) and I have this table structure

CREATE TABLE Scores
(
  studentID varchar(50) not null,
  score int
)
ENGINE = InnoDB

My Query:

INSERT INTO Scores Values
('Barry', 45),
(NULL, 41),
('Jones', 53)

This statement (I expected) should fail since [StudentID] column does not accept NULL. The problem was MySQL inserted empty string ('') into row 2... and allow the rest to continue.

Answer 1

Issue:

SET SQL_MODE='STRICT_ALL_TABLES'

or put

SQL_MODE='STRICT_ALL_TABLES'

under [mysqld] into my.cnf (then restart MySQL).