The PROCESSLIST table provides
information about which threads are running.
INFORMATION_SCHEMA Name | SHOW Name | Remarks |
|---|---|---|
ID | Id | MySQL extension |
USER | User | MySQL extension |
HOST | Host | MySQL extension |
DB | db | MySQL extension |
COMMAND | Command | MySQL extension |
TIME | Time | MySQL extension |
STATE | State | MySQL extension |
INFO | Info | MySQL extension |
For an extensive description of the table columns, see
Section 12.4.5.30, “SHOW PROCESSLIST Syntax”.
Notes:
The
PROCESSLISTtable is a nonstandard table.Like the output from the corresponding
SHOWstatement, thePROCESSLISTtable will only show information about your own threads, unless you have thePROCESSprivilege, in which case you will see information about other threads, too. As an anonymous user, you cannot see any rows at all.If an SQL statement refers to
INFORMATION_SCHEMA.PROCESSLIST, then MySQL will populate the entire table once, when statement execution begins, so there is read consistency during the statement. There is no read consistency for a multi-statement transaction, though.
The following statements are equivalent:
SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST SHOW FULL PROCESSLIST