Search results
Results from the WOW.Com Content Network
However, MEMORY tables don't support BLOB and TEXT types, and the user may limit the total size of MEMORY tables and temporary tables. When an internal temporary table could not be created with the MEMORY engine, it had to be created on disk, which is slower. For this reason Percona Server implemented improvements to MEMORY to support BLOB and ...
In MySQL 5.1, a copy of the MySQL FRM file is stored in the header of each Archive file. The FRM file, which represents the definition of a table, allows an Archive file to be restored to a MySQL server if the Archive file is copied to the server. Despite the use of zlib, archive files are not compatible with gzio, the basis of the gzip tools ...
In computing, a temporary folder or temporary directory is a directory used to hold temporary files.Many operating systems and some software automatically delete the contents of this directory at bootup or at regular intervals, leaving the directory itself intact.
tmpfs (short for Temporary File System) is a temporary file storage paradigm implemented in many Unix-like operating systems. It is intended to appear as a mounted file system, but data is stored in volatile memory instead of a persistent storage device.
DELETE requires a shared table lock; Triggers fire; DELETE can be used in the case of: database link; DELETE returns the number of records deleted; Transaction log - DELETE needs to read records, check constraints, update block, update indexes, and generate redo / undo. All of this takes time, hence it takes time much longer than with TRUNCATE
A temporary file is a file created to store information temporarily, either for a program's intermediate use or for transfer to a permanent file when complete. [1] It may be created by computer programs for a variety of purposes, such as when a program cannot allocate enough memory for its tasks, when the program is working on data bigger than the architecture's address space, or as a ...
It uses the MySQL client library API as a data transport, treating remote tables as if they were located on the local server. Each Federated table that is defined there is one .frm (data definition file containing information such as the URL of the data source). The actual data can exist on a local or remote MySQL instance.
TFC's minimalist design and single purpose allow it to have compact installation. As of version 3.1.1, a full installation occupies 3.7MB. It supports the removal of unnecessary and temporary files created by Google Chrome, Mozilla Firefox, Internet Explorer, and Opera browsers as well as those created in the course of normal system operation such as Windows Updates Cache, Windows Logs, and ...