SYSTEM_USER() adalah sinonim untuk USER().
CREATE TABLE t (c VARCHAR(288) DEFAULT (SYSTEM_USER()));
The SYSTEM_USER() function is distinct from the SYSTEM_USER privilege. The former returns the current MySQL account name. The latter distinguishes the system user and regular user account categories (see Section 8.2.11, “Account Categories”).
CREATE TABLE t (c VARCHAR(288) DEFAULT (SYSTEM_USER()));