Shulou(Shulou.com)06/01 Report--

The following mainly brings you the main points for attention of NULL data types in MYSQL. I hope these contents can bring you practical use, which is also the main purpose of this article when I edit the main points for attention of NULL data types in MYSQL. All right, don't talk too much nonsense, let's just read the following.

1+NULL-> NULL

1 | NULL-> NULL

1 AND NULL-> NULL

1 OR NULL-> 1

0 AND NULL-> 0

0 OR NULL- > NULL

1 null-> NULL

NULL= NULL-> NULL

1NULL-> 0

NULL NULL-> NULL

NULL LIKE'%'- > NULL

For the above about the main considerations of the NULL data type in MYSQL, you do not find it very helpful. If you need to know more, please continue to follow our industry information. I'm sure you'll like it.

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