MySQL之limit使用
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MySQL之limit使用
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如emp表,
mysql> select * from emp; +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | 1 | 馬云 | 男 | 1 | 1000 | 0 | 1985-03-05 00:00:00 | 2008-05-06 00:00:00 | | 2 | 李小龍 | 男 | 20000 | 1001 | 1 | 1983-06-07 00:00:00 | 2012-05-05 00:00:00 | | 3 | 成龍 | 男 | 23000 | 1002 | 2 | 1973-06-07 00:00:00 | 2013-05-05 00:00:00 | | 4 | 楊明 | 男 | 22000 | 1003 | 2 | 1993-06-09 00:00:00 | 2013-05-06 00:00:00 | | 5 | 黎明 | 男 | 28000 | 1004 | 3 | 1992-08-09 00:00:00 | 2013-07-06 00:00:00 | | 6 | 范冰冰 | 女 | 12000 | 1005 | 4 | 1994-08-09 00:00:00 | 2014-07-06 00:00:00 | | 7 | 劉亦菲 | 女 | 19000 | 1006 | 5 | 1997-08-09 00:00:00 | 2011-07-03 00:00:00 | | 8 | 唐嫣 | 女 | 39000 | 1007 | 6 | 1991-08-09 00:00:00 | 2015-07-03 00:00:00 | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+
拿表中 1 條數(shù)據(jù)
mysql> select * from emp limit 1; +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | 1 | 馬云 | 男 | 1 | 1000 | 0 | 1985-03-05 00:00:00 | 2008-05-06 00:00:00 | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+
或者
mysql> select * from emp limit 0,1 ; +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | 1 | 馬云 | 男 | 1 | 1000 | 0 | 1985-03-05 00:00:00 | 2008-05-06 00:00:00 | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ mysql> select * from emp limit 1,1 ; +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | 2 | 李小龍 | 男 | 20000 | 1001 | 1 | 1983-06-07 00:00:00 | 2012-05-05 00:00:00 | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+
拿其中3條數(shù)據(jù)
mysql> select * from emp limit 2,3; +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+ | 3 | 成龍 | 男 | 23000 | 1002 | 2 | 1973-06-07 00:00:00 | 2013-05-05 00:00:00 | | 4 | 楊明 | 男 | 22000 | 1003 | 2 | 1993-06-09 00:00:00 | 2013-05-06 00:00:00 | | 5 | 黎明 | 男 | 28000 | 1004 | 3 | 1992-08-09 00:00:00 | 2013-07-06 00:00:00 | +-----+-------+-----+--------+--------+----------+---------------------+---------------------+
拿其中4條數(shù)據(jù)
mysql> select * from emp limit 2,4; +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | 3 | 成龍 | 男 | 23000 | 1002 | 2 | 1973-06-07 00:00:00 | 2013-05-05 00:00:00 | | 4 | 楊明 | 男 | 22000 | 1003 | 2 | 1993-06-09 00:00:00 | 2013-05-06 00:00:00 | | 5 | 黎明 | 男 | 28000 | 1004 | 3 | 1992-08-09 00:00:00 | 2013-07-06 00:00:00 | | 6 | 范冰冰 | 女 | 12000 | 1005 | 4 | 1994-08-09 00:00:00 | 2014-07-06 00:00:00 | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+
拿 5條數(shù)據(jù)
mysql> select * from emp limit 1,5; +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | eid | ename | sex | salary | deptid | leaderid | birdate | income | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+ | 2 | 李小龍 | 男 | 20000 | 1001 | 1 | 1983-06-07 00:00:00 | 2012-05-05 00:00:00 | | 3 | 成龍 | 男 | 23000 | 1002 | 2 | 1973-06-07 00:00:00 | 2013-05-05 00:00:00 | | 4 | 楊明 | 男 | 22000 | 1003 | 2 | 1993-06-09 00:00:00 | 2013-05-06 00:00:00 | | 5 | 黎明 | 男 | 28000 | 1004 | 3 | 1992-08-09 00:00:00 | 2013-07-06 00:00:00 | | 6 | 范冰冰 | 女 | 12000 | 1005 | 4 | 1994-08-09 00:00:00 | 2014-07-06 00:00:00 | +-----+--------+-----+--------+--------+----------+---------------------+---------------------+
總結(jié): limit后面可以接一個(gè)數(shù)字,表示拿幾條數(shù)據(jù),默認(rèn)從第一條開(kāi)始拿; limit后面可以接兩個(gè)數(shù)字,第一個(gè)數(shù)字代表 從該數(shù)字起, 第二個(gè)數(shù)字代表 拿多少條。
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