INSERT [LOW_PRIORITY | HIGH_PRIORITY] [IGNORE] [INTO]
col_name,...)] SELECT ... [ ON DUPLICATE KEY UPDATE
expr, ... ]
SELECT, you can quickly insert many rows into a table
from one or many tables. For example:
INSERT INTO tbl_temp2 (fld_id) SELECT tbl_temp1.fld_order_id FROM tbl_temp1 WHERE tbl_temp1.fld_order_id > 100;
The following conditions hold for a
IGNORE to ignore rows that would
cause duplicate-key violations.
DELAYED is ignored with
The target table of the
INSERT statement may appear
FROM clause of the
SELECT part of the query.
(This was not possible in some older versions of MySQL.) In
this case, MySQL creates a temporary table to hold the rows
SELECT and then
inserts those rows into the target table. However, it
remains true that you cannot use
INSERT INTO t ...
SELECT ... FROM t when
t is a
TEMPORARY table, because
TEMPORARY tables cannot be referred to
twice in the same statement (see
Section B.5.7.2, “
TEMPORARY Table Problems”).
AUTO_INCREMENT columns work as usual.
To ensure that the binary log can be used to re-create the
original tables, MySQL does not allow concurrent inserts for
Currently, you cannot insert into a table and select from the same table in a subquery.
To avoid ambiguous column reference problems when the
SELECT and the
INSERT refer to the same
table, provide a unique alias for each table used in the
SELECT part, and qualify
column names in that part with the appropriate alias.
In the values part of
ON DUPLICATE KEY
UPDATE, you can refer to columns in other tables, as
long as you do not use
GROUP BY in the
SELECT part. One side effect is
that you must qualify nonunique column names in the values part.