DROP TABLE IF EXISTS t1;
CREATE TABLE t1(c1 BIT NOT NULL, c2 BIT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bit(1) NOT NULL,
  `c2` bit(1) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bit(1) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TINYINT NOT NULL, c2 TINYINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` tinyint(4) NOT NULL,
  `c2` tinyint(4) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` tinyint(4) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 SMALLINT NOT NULL, c2 SMALLINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` smallint(6) NOT NULL,
  `c2` smallint(6) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` smallint(6) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 MEDIUMINT NOT NULL, c2 MEDIUMINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` mediumint(9) NOT NULL,
  `c2` mediumint(9) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` mediumint(9) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 INT NOT NULL, c2 INT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 INTEGER NOT NULL, c2 INTEGER);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 BIGINT NOT NULL, c2 BIGINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bigint(20) NOT NULL,
  `c2` bigint(20) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bigint(20) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 REAL NOT NULL, c2 REAL);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL,
  `c2` double DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DOUBLE NOT NULL, c2 DOUBLE);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL,
  `c2` double DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 FLOAT NOT NULL, c2 FLOAT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` float NOT NULL,
  `c2` float DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` float NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DECIMAL NOT NULL, c2 DECIMAL);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL,
  `c2` decimal(10,0) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 NUMERIC NOT NULL, c2 NUMERIC);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL,
  `c2` decimal(10,0) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DATE NOT NULL, c2 DATE);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` date NOT NULL,
  `c2` date DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` date NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TIME NOT NULL, c2 TIME);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` time NOT NULL,
  `c2` time DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` time NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TIMESTAMP NOT NULL, c2 TIMESTAMP);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `c2` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00'
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 YEAR NOT NULL, c2 YEAR);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` year(4) NOT NULL,
  `c2` year(4) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP   c2;
ALTER TABLE t1 DROP   c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` year(4) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 BIT NOT NULL, c2 BIT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bit(1) NOT NULL,
  `c2` bit(1) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bit(1) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TINYINT NOT NULL, c2 TINYINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` tinyint(4) NOT NULL,
  `c2` tinyint(4) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` tinyint(4) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 SMALLINT NOT NULL, c2 SMALLINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` smallint(6) NOT NULL,
  `c2` smallint(6) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` smallint(6) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 MEDIUMINT NOT NULL, c2 MEDIUMINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` mediumint(9) NOT NULL,
  `c2` mediumint(9) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` mediumint(9) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 INT NOT NULL, c2 INT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 INTEGER NOT NULL, c2 INTEGER);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL,
  `c2` int(11) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` int(11) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 BIGINT NOT NULL, c2 BIGINT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bigint(20) NOT NULL,
  `c2` bigint(20) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` bigint(20) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 REAL NOT NULL, c2 REAL);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL,
  `c2` double DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DOUBLE NOT NULL, c2 DOUBLE);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL,
  `c2` double DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` double NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 FLOAT NOT NULL, c2 FLOAT);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` float NOT NULL,
  `c2` float DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` float NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DECIMAL NOT NULL, c2 DECIMAL);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL,
  `c2` decimal(10,0) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 NUMERIC NOT NULL, c2 NUMERIC);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL,
  `c2` decimal(10,0) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` decimal(10,0) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 DATE NOT NULL, c2 DATE);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` date NOT NULL,
  `c2` date DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` date NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TIME NOT NULL, c2 TIME);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` time NOT NULL,
  `c2` time DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` time NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 TIMESTAMP NOT NULL, c2 TIMESTAMP);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `c2` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00'
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 YEAR NOT NULL, c2 YEAR);
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` year(4) NOT NULL,
  `c2` year(4) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
ALTER TABLE t1 DROP COLUMN c2;
ALTER TABLE t1 DROP COLUMN c1;
ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` year(4) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1
DROP TABLE t1;
SHOW TABLES;
Tables_in_test