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73 lines
2.0 KiB
Plaintext
73 lines
2.0 KiB
Plaintext
DROP TABLE IF EXISTS t2;
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CREATE TABLE t2 (
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a bigint unsigned NOT NULL PRIMARY KEY,
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b int unsigned not null,
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c int unsigned
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) engine=ndbcluster;
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select count(*) from t2;
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count(*)
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10000
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delete from t2 limit 1;
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select count(*) from t2;
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count(*)
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9999
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delete from t2 limit 100;
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select count(*) from t2;
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count(*)
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9899
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delete from t2 limit 1000;
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select count(*) from t2;
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count(*)
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8899
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update t2 set c=12345678 limit 100;
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select count(*) from t2 where c=12345678;
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count(*)
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100
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select count(*) from t2 where c=12345678 limit 1000;
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count(*)
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100
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select * from t2 limit 0;
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a b c
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drop table t2;
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CREATE TABLE `t2` (
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`views` int(11) NOT NULL default '0',
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`clicks` int(11) NOT NULL default '0',
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`day` date NOT NULL default '0000-00-00',
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`hour` tinyint(4) NOT NULL default '0',
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`bannerid` smallint(6) NOT NULL default '0',
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`zoneid` smallint(6) NOT NULL default '0',
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`source` varchar(50) NOT NULL default '',
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PRIMARY KEY (`day`,`hour`,`bannerid`,`zoneid`,`source`),
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KEY `bannerid_day` (`bannerid`,`day`),
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KEY `zoneid` (`zoneid`)
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) ENGINE=ndbcluster DEFAULT CHARSET=latin1;
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INSERT INTO `t2` VALUES
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( 1,0,'2004-09-17', 5,100,100,''),
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( 1,0,'2004-09-18', 7,100,100,''),
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( 17,0,'2004-09-27',20,132,100,''),
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( 4,0,'2004-09-16',23,132,100,''),
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( 86,0,'2004-09-18', 7,196,196,''),
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( 11,0,'2004-09-16',16,132,100,''),
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(140,0,'2004-09-18', 0,100,164,''),
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( 2,0,'2004-09-17', 7,132,100,''),
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(846,0,'2004-09-27',11,132,164,''),
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( 1,0,'2004-09-18', 8,132,100,''),
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( 22,0,'2004-09-27', 9,164,132,''),
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(711,0,'2004-09-27', 9,100,164,''),
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( 11,0,'2004-09-18', 0,196,132,''),
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( 41,0,'2004-09-27',15,196,132,''),
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( 57,0,'2004-09-18', 2,164,196,'');
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SELECT DATE_FORMAT(day, '%Y%m%d') as date, DATE_FORMAT(day, '%d-%m-%Y')
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as date_formatted FROM t2 GROUP BY day ORDER BY day DESC;
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date date_formatted
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20040927 27-09-2004
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20040918 18-09-2004
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20040917 17-09-2004
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20040916 16-09-2004
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SELECT DATE_FORMAT(day, '%Y%m%d') as date, DATE_FORMAT(day, '%d-%m-%Y')
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as date_formatted FROM t2 GROUP BY day ORDER BY day DESC LIMIT 2;
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date date_formatted
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20040927 27-09-2004
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20040918 18-09-2004
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drop table t2;
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