MySQL Atomic RENAME & Table Reload

Example

RENAME TABLE t TO t_old, t_copy TO t;

No other sessions can access the tables involved while RENAME TABLE executes, so the rename operation is not subject to concurrency problems.

Atomic Rename is especially for completely reloading a table without waiting for DELETE and load to finish:

CREATE TABLE new LIKE real;
load `new` by whatever means - LOAD DATA, INSERT, whatever
RENAME TABLE real TO old, new TO real;
DROP TABLE old;