Is MySQL big and lowercase sensitive?

About the big-and lowercase-sensitive problem of myslq,

Description of the Case sensitivity of the MySQL database name and table name: The Database Name and table name in MySQL are related to the operating system. In Windows, the database name is case-insensitive. in UNIX and Linux operating systems, the database name is case-sensitive. In fact, you can view it in the data directory where MySQL stores data. You can know that a database corresponds to a table, and a table corresponds toTable name + ". frm" file.

In Windows, file names and directory names are case-insensitive,

Therefore, the MySQL database name and table name are case-insensitive in windows, while those in Unix or Linux are case-insensitive.

The following is the original description of mysqlmanual:

In MySQL, databases and tables correspond to directories and files within those directories.
Consequently, the Case sensitivity of the underlying operating system determines the case
Sensitivity of database and table names. This means database and table names are case
Sensitive in UNIX and case insensitive in windows.

Case sensitivity of column names:

In MySQL, column names are case-insensitive, that is, "testcolumn" and "testcolumn" are the same.