Rechercher dans le manuel MySQL
27.4.5.1 The extract _schema _from _file _name () Function
Given a file path name, returns the path component that
represents the schema name. This function assumes that the
file name lies within the schema directory. For this reason,
it will not work with partitions or tables defined using their
own DATA_DIRECTORY table option.
This function is useful when extracting file I/O information from the Performance Schema that includes file path names. It provides a convenient way to display schema names, which can be more easily understood than full path names, and can be used in joins against object schema names.
Parameters
path VARCHAR(512): The full path to a data file from which to extract the schema name.
- +---------------------------------------------------------------------------+
- | sys.extract_schema_from_file_name('/usr/local/mysql/data/world/City.ibd') |
- +---------------------------------------------------------------------------+
- | world |
- +---------------------------------------------------------------------------+
Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-sys-extract-schema-from-file-name.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.
