Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’d always thought that the storage size of a BIT(1) column is 1 bit.
But http://dev.mysql.com/doc/refman/5.6/en/storage-requirements.html
states that it is approximately (1+7)/8 bytes = 1 byte = 8 bits.
If I have 32000 rows of BIT(1) data, does it mean that it takes 32000 * (1+7)/8 bytes = 32000 bytes of storage ?
BIT(M) approximately (M+7)/8 bytes
http://dev.mysql.com/doc/refman/5.0/en/storage-requirements.html
-> data needs to be aligned so mysql need multiples of byte