blackhole.result

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

drop table if exists t1,t2;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
) ENGINE=blackhole;
INSERT INTO t1 VALUES (9410,9412);
select period from t1;
period
select * from t1;
Period	Varor_period
select t1.* from t1;
Period	Varor_period
CREATE TABLE t2 (
auto int NOT NULL auto_increment,
fld1 int(6) unsigned zerofill DEFAULT '000000' NOT NULL,
companynr tinyint(2) unsigned zerofill DEFAULT '00' NOT NULL,
fld3 char(30) DEFAULT '' NOT NULL,
fld4 char(35) DEFAULT '' NOT NULL,
fld5 char(35) DEFAULT '' NOT NULL,
fld6 char(4) DEFAULT '' NOT NULL,
primary key (auto)
) ENGINE=blackhole;
INSERT INTO t2 VALUES (1192,068305,00,'Colombo','hardware','colicky','');
INSERT INTO t2 VALUES (1193,000000,00,'nondecreasing','implant','thrillingly','');
select t2.fld3 from t2 where companynr = 58 and fld3 like "%imaginable%";
fld3
select fld3 from t2 where fld3 like "%cultivation" ;
fld3
select t2.fld3,companynr from t2 where companynr = 57+1 order by fld3;
fld3	companynr
select fld3,companynr from t2 where companynr = 58 order by fld3;
fld3	companynr
select fld3 from t2 order by fld3 desc limit 10;
fld3
select fld3 from t2 order by fld3 desc limit 5;
fld3
select fld3 from t2 order by fld3 desc limit 5,5;
fld3
select t2.fld3 from t2 where fld3 = 'honeysuckle';
fld3
select t2.fld3 from t2 where fld3 LIKE 'honeysuckl_';
fld3
select t2.fld3 from t2 where fld3 LIKE 'hon_ysuckl_';
fld3
select t2.fld3 from t2 where fld3 LIKE 'honeysuckle%';
fld3
select t2.fld3 from t2 where fld3 LIKE 'h%le';
fld3
select t2.fld3 from t2 where fld3 LIKE 'honeysuckle_';
fld3
select t2.fld3 from t2 where fld3 LIKE 'don_t_find_me_please%';
fld3
select t2.fld3 from t2 where fld3 >= 'honeysuckle' and fld3 <= 'honoring' order by fld3;
fld3
select fld1,fld3 from t2 where fld3="Colombo" or fld3 = "nondecreasing" order by fld3;
fld1	fld3
DROP TABLE t1;
CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b));
INSERT INTO t1 VALUES('MySQL has now support', 'for full-text search'),
('Full-text indexes', 'are called collections'),
('Only MyISAM tables','support collections'),
('Function MATCH ... AGAINST()','is used to do a search'),
('Full-text search in MySQL', 'implements vector space model');
SHOW INDEX FROM t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	1	a	1	a	NULL	NULL	NULL	NULL	YES	FULLTEXT	
t1	1	a	2	b	NULL	NULL	NULL	NULL	YES	FULLTEXT	
select * from t1 where MATCH(a,b) AGAINST ("collections");
a	b
Only MyISAM tables	support collections
Full-text indexes	are called collections
explain extended select * from t1 where MATCH(a,b) AGAINST ("collections");
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	fulltext	a	a	0		1	Using where
Warnings:
Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (match `test`.`t1`.`a`,`test`.`t1`.`b` against (_latin1'collections'))
select * from t1 where MATCH(a,b) AGAINST ("indexes");
a	b
Full-text indexes	are called collections
select * from t1 where MATCH(a,b) AGAINST ("indexes collections");
a	b
Full-text indexes	are called collections
Only MyISAM tables	support collections
select * from t1 where MATCH(a,b) AGAINST ("only");
a	b
reset master;
drop table t1,t2;
create table t1 (a int) engine=blackhole;
delete from t1 where a=10;
update t1 set a=11 where a=15;
insert into t1 values(1);
insert ignore into t1 values(1);
replace into t1 values(100);
create table t2 (a varchar(200)) engine=blackhole;
load data infile '../std_data_ln/words.dat' into table t2;
alter table t1 add b int;
alter table t1 drop b;
create table t3 like t1;
insert into t1 select * from t3;
replace into t1 select * from t3;
select * from t1;
a
select * from t2;
a
select * from t3;
a
show binlog events;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Format_desc	1	#	Server ver: VERSION, Binlog ver: 4
master-bin.000001	#	Query	1	#	use `test`; drop table t1,t2
master-bin.000001	#	Query	1	#	use `test`; create table t1 (a int) engine=blackhole
master-bin.000001	#	Query	1	#	use `test`; delete from t1 where a=10
master-bin.000001	#	Query	1	#	use `test`; update t1 set a=11 where a=15
master-bin.000001	#	Query	1	#	use `test`; insert into t1 values(1)
master-bin.000001	#	Query	1	#	use `test`; insert ignore into t1 values(1)
master-bin.000001	#	Query	1	#	use `test`; replace into t1 values(100)
master-bin.000001	#	Query	1	#	use `test`; create table t2 (a varchar(200)) engine=blackhole
master-bin.000001	#	Begin_load_query	1	#	;file_id=1;block_len=581
master-bin.000001	#	Execute_load_query	1	#	use `test`; load data infile '../std_data_ln/words.dat' into table t2 ;file_id=1
master-bin.000001	#	Query	1	#	use `test`; alter table t1 add b int
master-bin.000001	#	Query	1	#	use `test`; alter table t1 drop b
master-bin.000001	#	Query	1	#	use `test`; create table t3 like t1
master-bin.000001	#	Query	1	#	use `test`; insert into t1 select * from t3
master-bin.000001	#	Query	1	#	use `test`; replace into t1 select * from t3
drop table t1,t2,t3;
CREATE TABLE t1(a INT) ENGINE=BLACKHOLE;
INSERT DELAYED INTO t1 VALUES(1);
ERROR HY000: Table storage engine for 't1' doesn't have this option
DROP TABLE t1;
CREATE TABLE t1(a INT, b INT) ENGINE=BLACKHOLE;
DELETE FROM t1 WHERE a=10;
ALTER TABLE t1 ADD INDEX(a);
DELETE FROM t1 WHERE a=10;
ALTER TABLE t1 DROP INDEX a;
ALTER TABLE t1 ADD UNIQUE INDEX(a);
DELETE FROM t1 WHERE a=10;
ALTER TABLE t1 DROP INDEX a;
ALTER TABLE t1 ADD PRIMARY KEY(a);
DELETE FROM t1 WHERE a=10;
DROP TABLE t1;