170 lines
4.9 KiB
Plaintext
170 lines
4.9 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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CREATE TABLE t1(c1 CHAR(30) NOT NULL, c2 CHAR(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` char(30) NOT NULL,
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`c2` char(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP c2;
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ALTER TABLE t1 DROP c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` char(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 VARCHAR(30) NOT NULL, c2 VARCHAR(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varchar(30) NOT NULL,
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`c2` varchar(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP c2;
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ALTER TABLE t1 DROP c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varchar(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 BINARY(30) NOT NULL, c2 BINARY(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` binary(30) NOT NULL,
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`c2` binary(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP c2;
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ALTER TABLE t1 DROP c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` binary(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 VARBINARY(30) NOT NULL, c2 VARBINARY(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varbinary(30) NOT NULL,
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`c2` varbinary(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP c2;
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ALTER TABLE t1 DROP c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varbinary(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 CHAR(30) NOT NULL, c2 CHAR(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` char(30) NOT NULL,
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`c2` char(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP COLUMN c2;
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ALTER TABLE t1 DROP COLUMN c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` char(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 VARCHAR(30) NOT NULL, c2 VARCHAR(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varchar(30) NOT NULL,
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`c2` varchar(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP COLUMN c2;
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ALTER TABLE t1 DROP COLUMN c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varchar(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 BINARY(30) NOT NULL, c2 BINARY(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` binary(30) NOT NULL,
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`c2` binary(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP COLUMN c2;
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ALTER TABLE t1 DROP COLUMN c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` binary(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 VARBINARY(30) NOT NULL, c2 VARBINARY(30));
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SHOW TABLES;
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Tables_in_test
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t1
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varbinary(30) NOT NULL,
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`c2` varbinary(30) DEFAULT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 DROP COLUMN c2;
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ALTER TABLE t1 DROP COLUMN c1;
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ERROR 42000: You can't delete all columns with ALTER TABLE; use DROP TABLE instead
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` varbinary(30) NOT NULL
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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