show_check.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:20k
- drop table if exists t1,t2;
- drop database if exists mysqltest;
- delete from mysql.user where user='mysqltest_1' || user='mysqltest_2' || user='mysqltest_3';
- delete from mysql.db where user='mysqltest_1' || user='mysqltest_2' || user='mysqltest_3';
- flush privileges;
- create table t1 (a int not null primary key, b int not null,c int not null, key(b,c));
- insert into t1 values (1,2,2),(2,2,3),(3,2,4),(4,2,4);
- check table t1 fast;
- Table Op Msg_type Msg_text
- test.t1 check status Table is already up to date
- check table t1 fast;
- Table Op Msg_type Msg_text
- test.t1 check status Table is already up to date
- check table t1 changed;
- Table Op Msg_type Msg_text
- test.t1 check status OK
- insert into t1 values (5,5,5);
- check table t1 changed;
- Table Op Msg_type Msg_text
- test.t1 check status OK
- check table t1 medium;
- Table Op Msg_type Msg_text
- test.t1 check status OK
- check table t1 extended;
- Table Op Msg_type Msg_text
- test.t1 check status OK
- show index from t1;
- Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
- t1 0 PRIMARY 1 a A 5 NULL NULL BTREE
- t1 1 b 1 b A 1 NULL NULL BTREE
- t1 1 b 2 c A 5 NULL NULL BTREE
- insert into t1 values (5,5,5);
- ERROR 23000: Duplicate entry '5' for key 1
- optimize table t1;
- Table Op Msg_type Msg_text
- test.t1 optimize status OK
- optimize table t1;
- Table Op Msg_type Msg_text
- test.t1 optimize status Table is already up to date
- drop table t1;
- show variables like "wait_timeout%";
- Variable_name Value
- wait_timeout 28800
- show variables like "WAIT_timeout%";
- Variable_name Value
- wait_timeout 28800
- show variables like "this_doesn't_exists%";
- Variable_name Value
- show table status from test like "this_doesn't_exists%";
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- show databases;
- Database
- mysql
- test
- show databases like "test%";
- Database (test%)
- test
- create table t1 (f1 int not null, f2 int not null, f3 int not null, f4 int not null, primary key(f1,f2,f3,f4));
- insert into t1 values (1,1,1,0),(1,1,2,0),(1,1,3,0),(1,2,1,0),(1,2,2,0),(1,2,3,0),(1,3,1,0),(1,3,2,0),(1,3,3,0),(1,1,1,1),(1,1,2,1),(1,1,3,1),(1,2,1,1),(1,2,2,1),(1,2,3,1),(1,3,1,1),(1,3,2,1),(1,3,3,1);
- analyze table t1;
- Table Op Msg_type Msg_text
- test.t1 analyze status OK
- show index from t1;
- Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
- t1 0 PRIMARY 1 f1 A 1 NULL NULL BTREE
- t1 0 PRIMARY 2 f2 A 3 NULL NULL BTREE
- t1 0 PRIMARY 3 f3 A 9 NULL NULL BTREE
- t1 0 PRIMARY 4 f4 A 18 NULL NULL BTREE
- repair table t1;
- Table Op Msg_type Msg_text
- test.t1 repair status OK
- show index from t1;
- Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
- t1 0 PRIMARY 1 f1 A 1 NULL NULL BTREE
- t1 0 PRIMARY 2 f2 A 3 NULL NULL BTREE
- t1 0 PRIMARY 3 f3 A 9 NULL NULL BTREE
- t1 0 PRIMARY 4 f4 A 18 NULL NULL BTREE
- drop table t1;
- create temporary table t1 (a int not null);
- show create table t1;
- Table Create Table
- t1 CREATE TEMPORARY TABLE `t1` (
- `a` int(11) NOT NULL default '0'
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- alter table t1 rename t2;
- show create table t2;
- Table Create Table
- t2 CREATE TEMPORARY TABLE `t2` (
- `a` int(11) NOT NULL default '0'
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- drop table t2;
- create table t1 (
- test_set set( 'val1', 'val2', 'val3' ) not null default '',
- name char(20) default 'O''Brien' comment 'O''Brien as default',
- c int not null comment 'int column',
- `c-b` int comment 'name with a minus',
- `space 2` int comment 'name with a space'
- ) comment = 'it's a table' ;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `test_set` set('val1','val2','val3') NOT NULL default '',
- `name` char(20) default 'O''Brien' COMMENT 'O''Brien as default',
- `c` int(11) NOT NULL default '0' COMMENT 'int column',
- `c-b` int(11) default NULL COMMENT 'name with a minus',
- `space 2` int(11) default NULL COMMENT 'name with a space'
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='it''s a table'
- set sql_quote_show_create=0;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE t1 (
- test_set set('val1','val2','val3') NOT NULL default '',
- name char(20) default 'O''Brien' COMMENT 'O''Brien as default',
- c int(11) NOT NULL default '0' COMMENT 'int column',
- `c-b` int(11) default NULL COMMENT 'name with a minus',
- `space 2` int(11) default NULL COMMENT 'name with a space'
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='it''s a table'
- set sql_quote_show_create=1;
- show full columns from t1;
- Field Type Collation Null Key Default Extra Privileges Comment
- test_set set('val1','val2','val3') latin1_swedish_ci select,insert,update,references
- name char(20) latin1_swedish_ci YES O'Brien select,insert,update,references O'Brien as default
- c int(11) NULL 0 select,insert,update,references int column
- c-b int(11) NULL YES NULL select,insert,update,references name with a minus
- space 2 int(11) NULL YES NULL select,insert,update,references name with a space
- drop table t1;
- create table t1 (a int not null, unique aa (a));
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `a` int(11) NOT NULL default '0',
- UNIQUE KEY `aa` (`a`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- drop table t1;
- create table t1 (a int not null, primary key (a));
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `a` int(11) NOT NULL default '0',
- PRIMARY KEY (`a`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- drop table t1;
- flush tables;
- show open tables;
- Database Table In_use Name_locked
- create table t1(n int);
- insert into t1 values (1);
- show open tables;
- Database Table In_use Name_locked
- test t1 0 0
- drop table t1;
- create table t1 (a int not null, b VARCHAR(10), INDEX (b) ) AVG_ROW_LENGTH=10 CHECKSUM=1 COMMENT="test" ENGINE=MYISAM MIN_ROWS=10 MAX_ROWS=100 PACK_KEYS=1 DELAY_KEY_WRITE=1 ROW_FORMAT=fixed;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `a` int(11) NOT NULL default '0',
- `b` char(10) default NULL,
- KEY `b` (`b`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=100 AVG_ROW_LENGTH=10 PACK_KEYS=1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=FIXED COMMENT='test'
- alter table t1 MAX_ROWS=200 ROW_FORMAT=dynamic PACK_KEYS=0;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `a` int(11) NOT NULL default '0',
- `b` varchar(10) default NULL,
- KEY `b` (`b`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=200 AVG_ROW_LENGTH=10 PACK_KEYS=0 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=DYNAMIC COMMENT='test'
- ALTER TABLE t1 AVG_ROW_LENGTH=0 CHECKSUM=0 COMMENT="" MIN_ROWS=0 MAX_ROWS=0 PACK_KEYS=DEFAULT DELAY_KEY_WRITE=0 ROW_FORMAT=default;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `a` int(11) NOT NULL default '0',
- `b` varchar(10) default NULL,
- KEY `b` (`b`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- drop table t1;
- create table t1 (a decimal(9,2), b decimal (9,0), e double(9,2), f double(5,0), h float(3,2), i float(3,0));
- show columns from t1;
- Field Type Null Key Default Extra
- a decimal(9,2) YES NULL
- b decimal(9,0) YES NULL
- e double(9,2) YES NULL
- f double(5,0) YES NULL
- h float(3,2) YES NULL
- i float(3,0) YES NULL
- show full columns from t1;
- Field Type Collation Null Key Default Extra Privileges Comment
- a decimal(9,2) NULL YES NULL select,insert,update,references
- b decimal(9,0) NULL YES NULL select,insert,update,references
- e double(9,2) NULL YES NULL select,insert,update,references
- f double(5,0) NULL YES NULL select,insert,update,references
- h float(3,2) NULL YES NULL select,insert,update,references
- i float(3,0) NULL YES NULL select,insert,update,references
- drop table t1;
- create table t1 (
- type_bool bool not null,
- type_tiny tinyint not null auto_increment primary key,
- type_short smallint(3),
- type_mediumint mediumint,
- type_bigint bigint,
- type_decimal decimal(5,2),
- type_numeric numeric(5,2),
- empty_char char(0),
- type_char char(2),
- type_varchar varchar(10),
- type_timestamp timestamp not null,
- type_date date not null,
- type_time time not null,
- type_datetime datetime not null,
- type_year year,
- type_enum enum ('red', 'green', 'blue'),
- type_set enum ('red', 'green', 'blue'),
- type_tinyblob tinyblob,
- type_blob blob,
- type_medium_blob mediumblob,
- type_long_blob longblob,
- index(type_short)
- ) AVG_ROW_LENGTH=10 CHECKSUM=1 COMMENT="test" ENGINE=MYISAM MIN_ROWS=10 MAX_ROWS=100 PACK_KEYS=1 DELAY_KEY_WRITE=1 ROW_FORMAT=fixed CHARSET=latin1;
- show create table t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `type_bool` tinyint(1) NOT NULL default '0',
- `type_tiny` tinyint(4) NOT NULL auto_increment,
- `type_short` smallint(3) default NULL,
- `type_mediumint` mediumint(9) default NULL,
- `type_bigint` bigint(20) default NULL,
- `type_decimal` decimal(5,2) default NULL,
- `type_numeric` decimal(5,2) default NULL,
- `empty_char` char(0) default NULL,
- `type_char` char(2) default NULL,
- `type_varchar` varchar(10) default NULL,
- `type_timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
- `type_date` date NOT NULL default '0000-00-00',
- `type_time` time NOT NULL default '00:00:00',
- `type_datetime` datetime NOT NULL default '0000-00-00 00:00:00',
- `type_year` year(4) default NULL,
- `type_enum` enum('red','green','blue') default NULL,
- `type_set` enum('red','green','blue') default NULL,
- `type_tinyblob` tinyblob,
- `type_blob` blob,
- `type_medium_blob` mediumblob,
- `type_long_blob` longblob,
- PRIMARY KEY (`type_tiny`),
- KEY `type_short` (`type_short`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=100 AVG_ROW_LENGTH=10 PACK_KEYS=1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=FIXED COMMENT='test'
- insert into t1 (type_timestamp) values ("2003-02-07 10:00:01");
- select * from t1;
- type_bool type_tiny type_short type_mediumint type_bigint type_decimal type_numeric empty_char type_char type_varchar type_timestamp type_date type_time type_datetime type_year type_enum type_set type_tinyblob type_blob type_medium_blob type_long_blob
- 0 1 NULL NULL NULL NULL NULL NULL NULL NULL 2003-02-07 10:00:01 0000-00-00 00:00:00 0000-00-00 00:00:00 NULL NULL NULL NULL NULL NULL NULL
- drop table t1;
- create table t1 (a int not null);
- create table t2 select max(a) from t1;
- Warnings:
- Warning 1263 Data truncated; NULL supplied to NOT NULL column 'max(a)' at row 1
- show columns from t2;
- Field Type Null Key Default Extra
- max(a) int(11) 0
- drop table t1,t2;
- create table t1 (c decimal, d double, f float, r real);
- show columns from t1;
- Field Type Null Key Default Extra
- c decimal(10,0) YES NULL
- d double YES NULL
- f float YES NULL
- r double YES NULL
- drop table t1;
- create table t1 (c decimal(3,3), d double(3,3), f float(3,3));
- show columns from t1;
- Field Type Null Key Default Extra
- c decimal(4,3) YES NULL
- d double(4,3) YES NULL
- f float(4,3) YES NULL
- drop table t1;
- SET @old_sql_mode= @@sql_mode, sql_mode= '';
- SET @old_sql_quote_show_create= @@sql_quote_show_create, sql_quote_show_create= OFF;
- CREATE TABLE `a/b` (i INT);
- ERROR 42000: Incorrect table name 'a/b'
- SET sql_mode= 'ANSI_QUOTES';
- SET sql_mode= '';
- SET sql_quote_show_create= OFF;
- CREATE TABLE t1 (i INT);
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE t1 (
- i int(11) default NULL
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE `table` (i INT);
- SHOW CREATE TABLE `table`;
- Table Create Table
- table CREATE TABLE `table` (
- i int(11) default NULL
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- DROP TABLE `table`;
- SET sql_quote_show_create= @old_sql_quote_show_create;
- SET sql_mode= @old_sql_mode;
- select @@max_heap_table_size;
- @@max_heap_table_size
- 1047552
- CREATE TABLE t1 (
- a int(11) default NULL,
- KEY a TYPE BTREE (a)
- ) ENGINE=HEAP;
- CREATE TABLE t2 (
- b int(11) default NULL,
- index(b)
- ) ENGINE=HEAP;
- CREATE TABLE t3 (
- a int(11) default NULL,
- b int(11) default NULL,
- KEY a TYPE BTREE (a),
- index(b)
- ) ENGINE=HEAP;
- insert into t1 values (1),(2);
- insert into t2 values (1),(2);
- insert into t3 values (1,1),(2,2);
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- insert into t1 values (3),(4);
- insert into t2 values (3),(4);
- insert into t3 values (3,3),(4,4);
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- insert into t1 values (5);
- insert into t2 values (5);
- insert into t3 values (5,5);
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- delete from t1 where a=3;
- delete from t2 where b=3;
- delete from t3 where a=3;
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- delete from t1;
- delete from t2;
- delete from t3;
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- insert into t1 values (5);
- insert into t2 values (5);
- insert into t3 values (5,5);
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
- delete from t1 where a=5;
- delete from t2 where b=5;
- delete from t3 where a=5;
- show table status;
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 HEAP 9 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- t2 HEAP 9 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- t3 HEAP 9 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
- drop table t1, t2, t3;
- create database mysqltest;
- show create database mysqltest;
- Database Create Database
- mysqltest CREATE DATABASE `mysqltest` /*!40100 DEFAULT CHARACTER SET latin1 */
- create table mysqltest.t1(a int);
- insert into mysqltest.t1 values(1);
- grant select on `mysqltest`.* to mysqltest_1@localhost;
- grant usage on `mysqltest`.* to mysqltest_2@localhost;
- grant drop on `mysqltest`.* to mysqltest_3@localhost;
- select * from t1;
- a
- 1
- show create database mysqltest;
- Database Create Database
- mysqltest CREATE DATABASE `mysqltest` /*!40100 DEFAULT CHARACTER SET latin1 */
- drop table t1;
- ERROR 42000: Access denied for user 'mysqltest_1'@'localhost' to database 'mysqltest'
- drop database mysqltest;
- ERROR 42000: Access denied for user 'mysqltest_1'@'localhost' to database 'mysqltest'
- select * from mysqltest.t1;
- ERROR 42000: Access denied for user 'mysqltest_2'@'localhost' to database 'mysqltest'
- show create database mysqltest;
- ERROR 42000: Access denied for user 'mysqltest_2'@'localhost' to database 'mysqltest'
- drop table mysqltest.t1;
- ERROR 42000: Access denied for user 'mysqltest_2'@'localhost' to database 'mysqltest'
- drop database mysqltest;
- ERROR 42000: Access denied for user 'mysqltest_2'@'localhost' to database 'mysqltest'
- select * from mysqltest.t1;
- ERROR 42000: Access denied for user 'mysqltest_3'@'localhost' to database 'mysqltest'
- show create database mysqltest;
- ERROR 42000: Access denied for user 'mysqltest_3'@'localhost' to database 'mysqltest'
- drop table mysqltest.t1;
- drop database mysqltest;
- set names binary;
- delete from mysql.user
- where user='mysqltest_1' || user='mysqltest_2' || user='mysqltest_3';
- delete from mysql.db
- where user='mysqltest_1' || user='mysqltest_2' || user='mysqltest_3';
- flush privileges;
- CREATE TABLE t1 (i int, KEY (i)) ENGINE=MEMORY;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` (`i`)
- ) ENGINE=HEAP DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY USING HASH (i)) ENGINE=MEMORY;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` USING HASH (`i`)
- ) ENGINE=HEAP DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY USING BTREE (i)) ENGINE=MEMORY;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` USING BTREE (`i`)
- ) ENGINE=HEAP DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY (i)) ENGINE=MyISAM;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` (`i`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY USING BTREE (i)) ENGINE=MyISAM;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` USING BTREE (`i`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY (i)) ENGINE=MyISAM;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` (`i`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- ALTER TABLE t1 ENGINE=MEMORY;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` (`i`)
- ) ENGINE=HEAP DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1 (i int, KEY USING BTREE (i)) ENGINE=MyISAM;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` USING BTREE (`i`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- ALTER TABLE t1 ENGINE=MEMORY;
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `i` int(11) default NULL,
- KEY `i` USING BTREE (`i`)
- ) ENGINE=HEAP DEFAULT CHARSET=latin1
- DROP TABLE t1;
- CREATE TABLE t1(
- field1 text NOT NULL,
- PRIMARY KEY(field1(1000))
- );
- show index from t1;
- Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
- def Table 253 64 2 N 129 31 63
- def Non_unique 1 1 1 N 32929 0 63
- def Key_name 253 64 7 N 129 31 63
- def Seq_in_index 1 2 1 N 32929 0 63
- def Column_name 253 64 6 N 129 31 63
- def Collation 253 1 1 Y 128 31 63
- def Cardinality 8 21 1 Y 32896 0 63
- def Sub_part 2 3 4 Y 32928 0 63
- def Packed 253 10 0 Y 128 31 63
- def Null 253 3 0 N 129 31 63
- def Index_type 253 16 5 N 129 31 63
- def Comment 253 255 0 N 129 31 63
- Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
- t1 0 PRIMARY 1 field1 A 0 1000 NULL BTREE
- drop table t1;
- create table t1 (
- c1 int NOT NULL,
- c2 int NOT NULL,
- PRIMARY KEY USING HASH (c1),
- INDEX USING BTREE(c2)
- );
- SHOW CREATE TABLE t1;
- Table Create Table
- t1 CREATE TABLE `t1` (
- `c1` int(11) NOT NULL default '0',
- `c2` int(11) NOT NULL default '0',
- PRIMARY KEY USING HASH (`c1`),
- KEY `c2` USING BTREE (`c2`)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1
- DROP TABLE t1;
- flush tables;
- SHOW TABLE STATUS like 't1';
- Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
- t1 NULL NULL NULL NULL # # # # NULL NULL NULL NULL NULL NULL NULL NULL Incorrect information in file: './test/t1.frm'
- show create table t1;
- ERROR HY000: Incorrect information in file: './test/t1.frm'
- drop table t1;