DROP TABLE IF EXISTS t1;
CREATE TABLE t1(c1 CHAR(30) NOT NULL, c2 CHAR(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` char(30) NOT NULL,
  `c2` char(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` char(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 VARCHAR(30) NOT NULL, c2 VARCHAR(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varchar(30) NOT NULL,
  `c2` varchar(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` varchar(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 BINARY(30) NOT NULL, c2 BINARY(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` binary(30) NOT NULL,
  `c2` binary(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` binary(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 VARBINARY(30) NOT NULL, c2 VARBINARY(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varbinary(30) NOT NULL,
  `c2` varbinary(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` varbinary(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 CHAR(30) NOT NULL, c2 CHAR(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` char(30) NOT NULL,
  `c2` char(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` char(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 VARCHAR(30) NOT NULL, c2 VARCHAR(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varchar(30) NOT NULL,
  `c2` varchar(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` varchar(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 BINARY(30) NOT NULL, c2 BINARY(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` binary(30) NOT NULL,
  `c2` binary(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` binary(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test
CREATE TABLE t1(c1 VARBINARY(30) NOT NULL, c2 VARBINARY(30));
SHOW TABLES;
Tables_in_test
t1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varbinary(30) NOT NULL,
  `c2` varbinary(30) DEFAULT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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` varbinary(30) NOT NULL
) ENGINE=ENGINE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
DROP TABLE t1;
SHOW TABLES;
Tables_in_test