mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
90 lines
3.1 KiB
Plaintext
90 lines
3.1 KiB
Plaintext
drop table if exists t1,t2;
|
|
create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a)) type=isam;
|
|
Warnings:
|
|
Warning 1263 Data truncated for column 'b' at row 1
|
|
Warnings:
|
|
Warning 1263 Data truncated for column 'b' at row 1
|
|
Warnings:
|
|
Warning 1263 Data truncated for column 'b' at row 1
|
|
Warnings:
|
|
Warning 1263 Data truncated for column 'b' at row 1
|
|
delete from t1 where (a & 1);
|
|
select sum(length(b)) from t1;
|
|
sum(length(b))
|
|
3274494
|
|
drop table t1;
|
|
create table t1 (a int not null auto_increment,b int, primary key (a)) type=isam;
|
|
insert into t1 values (1,1),(NULL,2),(3,3),(NULL,4);
|
|
delete from t1 where a=4 or a=2;
|
|
insert into t1 values (NULL,4),(NULL,5),(6,6);
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
5 5
|
|
3 3
|
|
4 4
|
|
6 6
|
|
delete from t1 where a=6;
|
|
replace t1 values (3,1);
|
|
replace t1 values (3,3);
|
|
ALTER TABLE t1 add c int;
|
|
insert into t1 values (NULL,6,6);
|
|
select * from t1;
|
|
a b c
|
|
1 1 NULL
|
|
5 5 NULL
|
|
3 3 NULL
|
|
4 4 NULL
|
|
6 6 6
|
|
drop table t1;
|
|
create table t1 (a int,b text, index(a)) type=isam;
|
|
ERROR 42000: Column 'a' is used with UNIQUE or INDEX but is not defined as NOT NULL
|
|
create table t1 (a int,b text, index(b)) type=isam;
|
|
ERROR 42000: BLOB column 'b' can't be used in key specification with the used table type
|
|
create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ord,ordid)) type=isam;
|
|
ERROR 42000: Incorrect table definition; There can only be one auto column and it must be defined as a key
|
|
create table t1 (ordid int(8), unique (ordid)) type=isam;
|
|
ERROR 42000: Column 'ordid' is used with UNIQUE or INDEX but is not defined as NOT NULL
|
|
drop table if exists t1;
|
|
Warnings:
|
|
Note 1051 Unknown table 't1'
|
|
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);
|
|
create table t2 type=isam select * from t1;
|
|
optimize table t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 optimize status OK
|
|
check table t1,t2;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 check status OK
|
|
test.t2 check error The storage enginge for the table doesn't support check
|
|
repair table t1,t2;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 repair status OK
|
|
test.t2 repair error The storage enginge for the table doesn't support repair
|
|
check table t2,t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t2 check error The storage enginge for the table doesn't support check
|
|
test.t1 check status OK
|
|
lock tables t1 write;
|
|
check table t2,t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t2 check error Table 't2' was not locked with LOCK TABLES
|
|
test.t1 check status OK
|
|
show columns from t1;
|
|
Field Type Null Key Default Extra
|
|
a int(11) PRI 0
|
|
b int(11) MUL 0
|
|
c int(11) 0
|
|
show full columns from t1;
|
|
Field Type Collation Null Key Default Extra Privileges Comment
|
|
a int(11) NULL PRI 0 select,insert,update,references
|
|
b int(11) NULL MUL 0 select,insert,update,references
|
|
c int(11) NULL 0 select,insert,update,references
|
|
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 4 NULL NULL BTREE
|
|
t1 1 b 1 b A 1 NULL NULL BTREE
|
|
t1 1 b 2 c A 4 NULL NULL BTREE
|
|
drop table t1,t2;
|