set local sql_mode="";
set global sql_mode="";
drop table if exists t1;
SET SESSION enforce_storage_engine=MyISAM;
select @@session.enforce_storage_engine;
@@session.enforce_storage_engine
MyISAM
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=Memory;
Warnings:
Note	1266	Using storage engine MyISAM for table 't1'
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SET SESSION sql_mode='NO_ENGINE_SUBSTITUTION';
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
INSERT INTO t1 values (1,'abba');
CREATE TABLE t2 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=Memory;
ERROR 42000: Unknown storage engine 'MEMORY'
SET SESSION sql_mode='';
SET SESSION enforce_storage_engine=MyISAM;
select @@session.enforce_storage_engine;
@@session.enforce_storage_engine
MyISAM
select * from t1;
c1	c2
1	abba
drop table t1;
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SET SESSION enforce_storage_engine=FooBar;
ERROR 42000: Unknown storage engine 'FooBar'
select @@session.enforce_storage_engine;
@@session.enforce_storage_engine
MyISAM
connect  con1,localhost,user_1,,;
connection con1;
SET SESSION enforce_storage_engine=MyISAM;
ERROR 42000: Access denied; you need (at least one of) the SUPER privilege(s) for this operation
disconnect con1;
connection default;
SET SESSION enforce_storage_engine=NULL;
SET SESSION sql_mode='NO_ENGINE_SUBSTITUTION';
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=Memory;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10));
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SET GLOBAL enforce_storage_engine=Memory;
SET SESSION sql_mode='';
connect  con1,localhost,root,,;
connection con1;
select @@session.enforce_storage_engine;
@@session.enforce_storage_engine
MEMORY
select @@global.enforce_storage_engine;
@@global.enforce_storage_engine
MEMORY
CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10));
Warnings:
Note	1266	Using storage engine MEMORY for table 't1'
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MEMORY DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
connection default;
disconnect con1;
set global sql_mode=default;
SET SESSION enforce_storage_engine=NULL;
SET GLOBAL enforce_storage_engine=NULL;
CREATE TABLE t3 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
INSERT INTO t3 values (NULL, 'test');
SET SESSION enforce_storage_engine=Memory;
ALTER TABLE t3 ENGINE=MyISAM;
Warnings:
Note	1266	Using storage engine MEMORY for table 't3'
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MEMORY AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t3;
SET SESSION enforce_storage_engine=NULL;
CREATE TABLE t3 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
INSERT INTO t3 values (NULL, 'test');
SET SESSION enforce_storage_engine=Memory;
ALTER TABLE t3 ADD COLUMN c3 INT;
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `c1` int(11) NOT NULL AUTO_INCREMENT,
  `c2` varchar(10) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t3;
SET SESSION enforce_storage_engine=NULL;
SET GLOBAL enforce_storage_engine=NULL;