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Today, the editor will share with you the relevant knowledge about what the mysql bit type is. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Description

1. For the BIT type, it is used to store bit field values. BIT (M) can be used to store multi-bit binary numbers. The M range is 1x64. If it is not written, the default is 1 bit.

And you won't see the query result by using the SELECT command directly, you need to use the bin () (binary) or hex () (hexadecimal) function to read it.

2. When the data is inserted into the two types of bit fields, it is first changed to binary, and if the number of digits is allowed, it will be inserted successfully.

If the number of digits exceeds the defined number, it cannot be inserted.

Example

Create the table tb, define the field id1 as bit (1), and the id2 field as bitmysql > create table tb (id1 bit (1), id2 bit). This is all the content of the article "what are the mysql bit types?" Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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