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 PROCESSLIST
table is a
nonstandard table.
Like the output from the corresponding
SHOW
statement, the
PROCESSLIST
table will only show
information about your own threads, unless you have the
PROCESS
privilege, 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
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