ndb_index_ordered.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:12k
源码类别:
MySQL数据库
开发平台:
Visual C++
- drop table if exists t1, test1, test2;
- CREATE TABLE t1 (
- a int unsigned NOT NULL PRIMARY KEY,
- b int unsigned not null,
- c int unsigned,
- KEY(b)
- ) engine=ndbcluster;
- insert t1 values(1, 2, 3), (2,3, 5), (3, 4, 6), (4, 5, 8), (5,6, 2), (6,7, 2);
- select * from t1 order by b;
- a b c
- 1 2 3
- 2 3 5
- 3 4 6
- 4 5 8
- 5 6 2
- 6 7 2
- select * from t1 where b >= 4 order by b;
- a b c
- 3 4 6
- 4 5 8
- 5 6 2
- 6 7 2
- select * from t1 where b = 4 order by b;
- a b c
- 3 4 6
- select * from t1 where b > 4 order by b;
- a b c
- 4 5 8
- 5 6 2
- 6 7 2
- select * from t1 where b < 4 order by b;
- a b c
- 1 2 3
- 2 3 5
- select * from t1 where b <= 4 order by b;
- a b c
- 1 2 3
- 2 3 5
- 3 4 6
- select tt1.* from t1 as tt1, t1 as tt2 use index(b) where tt1.b = tt2.b order by tt1.b;
- a b c
- 1 2 3
- 2 3 5
- 3 4 6
- 4 5 8
- 5 6 2
- 6 7 2
- select a, b, c from t1 where a!=2 and c=6;
- a b c
- 3 4 6
- select a, b, c from t1 where a!=2 order by a;
- a b c
- 1 2 3
- 3 4 6
- 4 5 8
- 5 6 2
- 6 7 2
- update t1 set c = 3 where b = 3;
- select * from t1 order by a;
- a b c
- 1 2 3
- 2 3 3
- 3 4 6
- 4 5 8
- 5 6 2
- 6 7 2
- update t1 set c = 10 where b >= 6;
- select * from t1 order by a;
- a b c
- 1 2 3
- 2 3 3
- 3 4 6
- 4 5 8
- 5 6 10
- 6 7 10
- update t1 set c = 11 where b < 5;
- select * from t1 order by a;
- a b c
- 1 2 11
- 2 3 11
- 3 4 11
- 4 5 8
- 5 6 10
- 6 7 10
- update t1 set c = 12 where b > 0;
- select * from t1 order by a;
- a b c
- 1 2 12
- 2 3 12
- 3 4 12
- 4 5 12
- 5 6 12
- 6 7 12
- update t1 set c = 13 where b <= 3;
- select * from t1 order by a;
- a b c
- 1 2 13
- 2 3 13
- 3 4 12
- 4 5 12
- 5 6 12
- 6 7 12
- update t1 set b = b + 1 where b > 4 and b < 7;
- select * from t1 order by a;
- a b c
- 1 2 13
- 2 3 13
- 3 4 12
- 4 6 12
- 5 7 12
- 6 7 12
- update t1 set a = a + 10 where b > 1 and b < 7;
- select * from t1 order by a;
- a b c
- 5 7 12
- 6 7 12
- 11 2 13
- 12 3 13
- 13 4 12
- 14 6 12
- drop table t1;
- CREATE TABLE t1 (
- a int unsigned NOT NULL PRIMARY KEY,
- b int unsigned not null,
- c int unsigned,
- KEY(b)
- ) engine=ndbcluster;
- insert t1 values(1, 2, 13), (2,3, 13), (3, 4, 12), (4, 5, 12), (5,6, 12), (6,7, 12);
- delete from t1 where b = 3;
- select * from t1 order by a;
- a b c
- 1 2 13
- 3 4 12
- 4 5 12
- 5 6 12
- 6 7 12
- delete from t1 where b >= 6;
- select * from t1 order by a;
- a b c
- 1 2 13
- 3 4 12
- 4 5 12
- delete from t1 where b < 4;
- select * from t1 order by a;
- a b c
- 3 4 12
- 4 5 12
- delete from t1 where b > 5;
- select * from t1 order by a;
- a b c
- 3 4 12
- 4 5 12
- delete from t1 where b <= 4;
- select * from t1 order by a;
- a b c
- 4 5 12
- drop table t1;
- CREATE TABLE t1 (
- a int unsigned NOT NULL PRIMARY KEY,
- b int unsigned not null,
- c int unsigned not null
- ) engine = ndb;
- create index a1 on t1 (b, c);
- insert into t1 values (1, 2, 13);
- insert into t1 values (2,3, 13);
- insert into t1 values (3, 4, 12);
- insert into t1 values (4, 5, 12);
- insert into t1 values (5,6, 12);
- insert into t1 values (6,7, 12);
- insert into t1 values (7, 2, 1);
- insert into t1 values (8,3, 6);
- insert into t1 values (9, 4, 12);
- insert into t1 values (14, 5, 4);
- insert into t1 values (15,5,5);
- insert into t1 values (16,5, 6);
- insert into t1 values (17,4,4);
- insert into t1 values (18,1, 7);
- select * from t1 order by a;
- a b c
- 1 2 13
- 2 3 13
- 3 4 12
- 4 5 12
- 5 6 12
- 6 7 12
- 7 2 1
- 8 3 6
- 9 4 12
- 14 5 4
- 15 5 5
- 16 5 6
- 17 4 4
- 18 1 7
- select * from t1 where b<=5 order by a;
- a b c
- 1 2 13
- 2 3 13
- 3 4 12
- 4 5 12
- 7 2 1
- 8 3 6
- 9 4 12
- 14 5 4
- 15 5 5
- 16 5 6
- 17 4 4
- 18 1 7
- select * from t1 where b<=5 and c=0;
- a b c
- insert into t1 values (19,4, 0);
- select * from t1 where b<=5 and c=0;
- a b c
- 19 4 0
- select * from t1 where b=4 and c<=5 order by a;
- a b c
- 17 4 4
- 19 4 0
- select * from t1 where b<=4 and c<=5 order by a;
- a b c
- 7 2 1
- 17 4 4
- 19 4 0
- select * from t1 where b<=5 and c=0 or b<=5 and c=2;
- a b c
- 19 4 0
- select count(*) from t1 where b = 0;
- count(*)
- 0
- select count(*) from t1 where b = 1;
- count(*)
- 1
- drop table t1;
- CREATE TABLE t1 (
- a int unsigned NOT NULL PRIMARY KEY,
- b int unsigned,
- c int unsigned,
- KEY bc(b,c)
- ) engine = ndb;
- insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
- select * from t1 use index (bc) where b IS NULL order by a;
- a b c
- 2 NULL 2
- 3 NULL NULL
- select * from t1 use index (bc)order by a;
- a b c
- 1 1 1
- 2 NULL 2
- 3 NULL NULL
- 4 4 NULL
- select * from t1 use index (bc) order by a;
- a b c
- 1 1 1
- 2 NULL 2
- 3 NULL NULL
- 4 4 NULL
- select * from t1 use index (PRIMARY) where b IS NULL order by a;
- a b c
- 2 NULL 2
- 3 NULL NULL
- select * from t1 use index (bc) where b IS NULL order by a;
- a b c
- 2 NULL 2
- 3 NULL NULL
- select * from t1 use index (bc) where b IS NULL and c IS NULL order by a;
- a b c
- 3 NULL NULL
- select * from t1 use index (bc) where b IS NULL and c = 2 order by a;
- a b c
- 2 NULL 2
- select * from t1 use index (bc) where b < 4 order by a;
- a b c
- 1 1 1
- select * from t1 use index (bc) where b IS NOT NULL order by a;
- a b c
- 1 1 1
- 4 4 NULL
- drop table t1;
- CREATE TABLE test1 (
- SubscrID int(11) NOT NULL auto_increment,
- UsrID int(11) NOT NULL default '0',
- PRIMARY KEY (SubscrID),
- KEY idx_usrid (UsrID)
- ) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
- INSERT INTO test1 VALUES (2,224),(3,224),(1,224);
- CREATE TABLE test2 (
- SbclID int(11) NOT NULL auto_increment,
- SbcrID int(11) NOT NULL default '0',
- PRIMARY KEY (SbclID),
- KEY idx_sbcrid (SbcrID)
- ) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
- INSERT INTO test2 VALUES (3,2),(1,1),(2,1),(4,2);
- select * from test1 order by 1;
- SubscrID UsrID
- 1 224
- 2 224
- 3 224
- select * from test2 order by 1;
- SbclID SbcrID
- 1 1
- 2 1
- 3 2
- 4 2
- SELECT s.SubscrID,l.SbclID FROM test1 s left JOIN test2 l ON
- l.SbcrID=s.SubscrID WHERE s.UsrID=224 order by 1, 2;
- SubscrID SbclID
- 1 1
- 1 2
- 2 3
- 2 4
- 3 NULL
- drop table test1;
- drop table test2;
- create table t1 (
- pk int primary key,
- dt datetime not null,
- da date not null,
- ye year not null,
- ti time not null,
- ts timestamp not null,
- index(dt),
- index(da),
- index(ye),
- index(ti),
- index(ts)
- ) engine=ndb;
- insert into t1 (pk,dt,da,ye,ti,ts) values
- (1, '1901-05-05 23:00:59', '1901-05-05', '1901', '23:00:59', '2001-01-01 23:00:59'),
- (2, '1912-09-05 13:00:59', '1912-09-05', '1912', '13:00:59', '2001-01-01 13:00:59'),
- (3, '1945-12-31 00:00:00', '1945-12-31', '1945', '00:00:00', '2001-01-01 00:00:00'),
- (4, '1955-12-31 00:00:00', '1955-12-31', '1955', '00:00:00', '2001-01-01 00:00:00'),
- (5, '1963-06-06 06:06:06', '1963-06-06', '1963', '06:06:06', '2001-01-01 06:06:06'),
- (6, '1993-06-06 06:06:06', '1993-06-06', '1993', '06:06:06', '2001-01-01 06:06:06'),
- (7, '2001-01-01 10:11:10', '2001-01-01', '2001', '10:11:10', '2001-01-01 10:11:10'),
- (8, '2001-01-01 10:11:11', '2001-01-01', '2001', '10:11:11', '2001-01-01 10:11:11'),
- (9, '2005-01-31 23:59:59', '2005-01-31', '2005', '23:59:59', '2001-01-01 23:59:59');
- select count(*)-9 from t1 use index (dt) where dt > '1900-01-01 00:00:00';
- count(*)-9
- 0
- select count(*)-6 from t1 use index (dt) where dt >= '1955-12-31 00:00:00';
- count(*)-6
- 0
- select count(*)-5 from t1 use index (dt) where dt > '1955-12-31 00:00:00';
- count(*)-5
- 0
- select count(*)-5 from t1 use index (dt) where dt < '1970-03-03 22:22:22';
- count(*)-5
- 0
- select count(*)-7 from t1 use index (dt) where dt < '2001-01-01 10:11:11';
- count(*)-7
- 0
- select count(*)-8 from t1 use index (dt) where dt <= '2001-01-01 10:11:11';
- count(*)-8
- 0
- select count(*)-9 from t1 use index (dt) where dt <= '2055-01-01 00:00:00';
- count(*)-9
- 0
- select count(*)-9 from t1 use index (da) where da > '1900-01-01';
- count(*)-9
- 0
- select count(*)-6 from t1 use index (da) where da >= '1955-12-31';
- count(*)-6
- 0
- select count(*)-5 from t1 use index (da) where da > '1955-12-31';
- count(*)-5
- 0
- select count(*)-5 from t1 use index (da) where da < '1970-03-03';
- count(*)-5
- 0
- select count(*)-6 from t1 use index (da) where da < '2001-01-01';
- count(*)-6
- 0
- select count(*)-8 from t1 use index (da) where da <= '2001-01-02';
- count(*)-8
- 0
- select count(*)-9 from t1 use index (da) where da <= '2055-01-01';
- count(*)-9
- 0
- select count(*)-9 from t1 use index (ye) where ye > '1900';
- count(*)-9
- 0
- select count(*)-6 from t1 use index (ye) where ye >= '1955';
- count(*)-6
- 0
- select count(*)-5 from t1 use index (ye) where ye > '1955';
- count(*)-5
- 0
- select count(*)-5 from t1 use index (ye) where ye < '1970';
- count(*)-5
- 0
- select count(*)-6 from t1 use index (ye) where ye < '2001';
- count(*)-6
- 0
- select count(*)-8 from t1 use index (ye) where ye <= '2001';
- count(*)-8
- 0
- select count(*)-9 from t1 use index (ye) where ye <= '2055';
- count(*)-9
- 0
- select count(*)-9 from t1 use index (ti) where ti >= '00:00:00';
- count(*)-9
- 0
- select count(*)-7 from t1 use index (ti) where ti > '00:00:00';
- count(*)-7
- 0
- select count(*)-7 from t1 use index (ti) where ti > '05:05:05';
- count(*)-7
- 0
- select count(*)-5 from t1 use index (ti) where ti > '06:06:06';
- count(*)-5
- 0
- select count(*)-5 from t1 use index (ti) where ti < '10:11:11';
- count(*)-5
- 0
- select count(*)-6 from t1 use index (ti) where ti <= '10:11:11';
- count(*)-6
- 0
- select count(*)-8 from t1 use index (ti) where ti < '23:59:59';
- count(*)-8
- 0
- select count(*)-9 from t1 use index (ti) where ti <= '23:59:59';
- count(*)-9
- 0
- select count(*)-9 from t1 use index (ts) where ts >= '2001-01-01 00:00:00';
- count(*)-9
- 0
- select count(*)-7 from t1 use index (ts) where ts > '2001-01-01 00:00:00';
- count(*)-7
- 0
- select count(*)-7 from t1 use index (ts) where ts > '2001-01-01 05:05:05';
- count(*)-7
- 0
- select count(*)-5 from t1 use index (ts) where ts > '2001-01-01 06:06:06';
- count(*)-5
- 0
- select count(*)-5 from t1 use index (ts) where ts < '2001-01-01 10:11:11';
- count(*)-5
- 0
- select count(*)-6 from t1 use index (ts) where ts <= '2001-01-01 10:11:11';
- count(*)-6
- 0
- select count(*)-8 from t1 use index (ts) where ts < '2001-01-01 23:59:59';
- count(*)-8
- 0
- select count(*)-9 from t1 use index (ts) where ts <= '2001-01-01 23:59:59';
- count(*)-9
- 0
- drop table t1;
- create table t1 (
- a int primary key,
- s decimal(12),
- t decimal(12, 5),
- u decimal(12) unsigned,
- v decimal(12, 5) unsigned,
- key (s),
- key (t),
- key (u),
- key (v)
- ) engine=ndb;
- insert into t1 values
- ( 0, -000000000007, -0000061.00003, 000000000061, 0000965.00042),
- ( 1, -000000000007, -0000061.00042, 000000000061, 0000965.00003),
- ( 2, -071006035767, 4210253.00024, 000000000001, 0000001.84488),
- ( 3, 000000007115, 0000000.77607, 000077350625, 0000018.00013),
- ( 4, -000000068391, -0346486.00000, 000000005071, 0005334.00002),
- ( 5, -521579890459, -1936874.00001, 000000000154, 0000003.00018),
- ( 6, -521579890459, -1936874.00018, 000000000154, 0000003.00001),
- ( 7, 000000000333, 0000051.39140, 000000907958, 0788643.08374),
- ( 8, 000042731229, 0000009.00000, 000000000009, 6428667.00000),
- ( 9, -000008159769, 0000918.00004, 000096951421, 7607730.00008);
- select count(*)- 5 from t1 use index (s) where s < -000000000007;
- count(*)- 5
- 0
- select count(*)- 7 from t1 use index (s) where s <= -000000000007;
- count(*)- 7
- 0
- select count(*)- 2 from t1 use index (s) where s = -000000000007;
- count(*)- 2
- 0
- select count(*)- 5 from t1 use index (s) where s >= -000000000007;
- count(*)- 5
- 0
- select count(*)- 3 from t1 use index (s) where s > -000000000007;
- count(*)- 3
- 0
- select count(*)- 4 from t1 use index (t) where t < -0000061.00003;
- count(*)- 4
- 0
- select count(*)- 5 from t1 use index (t) where t <= -0000061.00003;
- count(*)- 5
- 0
- select count(*)- 1 from t1 use index (t) where t = -0000061.00003;
- count(*)- 1
- 0
- select count(*)- 6 from t1 use index (t) where t >= -0000061.00003;
- count(*)- 6
- 0
- select count(*)- 5 from t1 use index (t) where t > -0000061.00003;
- count(*)- 5
- 0
- select count(*)- 2 from t1 use index (u) where u < 000000000061;
- count(*)- 2
- 0
- select count(*)- 4 from t1 use index (u) where u <= 000000000061;
- count(*)- 4
- 0
- select count(*)- 2 from t1 use index (u) where u = 000000000061;
- count(*)- 2
- 0
- select count(*)- 8 from t1 use index (u) where u >= 000000000061;
- count(*)- 8
- 0
- select count(*)- 6 from t1 use index (u) where u > 000000000061;
- count(*)- 6
- 0
- select count(*)- 5 from t1 use index (v) where v < 0000965.00042;
- count(*)- 5
- 0
- select count(*)- 6 from t1 use index (v) where v <= 0000965.00042;
- count(*)- 6
- 0
- select count(*)- 1 from t1 use index (v) where v = 0000965.00042;
- count(*)- 1
- 0
- select count(*)- 5 from t1 use index (v) where v >= 0000965.00042;
- count(*)- 5
- 0
- select count(*)- 4 from t1 use index (v) where v > 0000965.00042;
- count(*)- 4
- 0
- drop table t1;
- create table t1(a int primary key, b int not null, index(b));
- insert into t1 values (1,1), (2,2);
- set autocommit=0;
- begin;
- select count(*) from t1;
- count(*)
- 2
- ALTER TABLE t1 ADD COLUMN c int;
- select a from t1 where b = 2;
- a
- 2
- show tables;
- Tables_in_test
- t1
- drop table t1;