SQL249. 分页查询employees表,每5行一页,返回第2页的数据
描述
分页查询employees表,每5行一页,返回第2页的数据示例1
输入:
drop table if exists `employees` ; CREATE TABLE `employees` ( `emp_no` int(11) NOT NULL, `birth_date` date NOT NULL, `first_name` varchar(14) NOT NULL, `last_name` varchar(16) NOT NULL, `gender` char(1) NOT NULL, `hire_date` date NOT NULL, PRIMARY KEY (`emp_no`)); INSERT INTO employees VALUES(10001,'1953-09-02','Georgi','Facello','M','1986-06-26'); INSERT INTO employees VALUES(10002,'1964-06-02','Bezalel','Simmel','F','1985-11-21'); INSERT INTO employees VALUES(10003,'1959-12-03','Parto','Bamford','M','1986-08-28'); INSERT INTO employees VALUES(10004,'1954-05-01','Chirstian','Koblick','M','1986-12-01'); INSERT INTO employees VALUES(10005,'1955-01-21','Kyoichi','Maliniak','M','1989-09-12'); INSERT INTO employees VALUES(10006,'1953-04-20','Anneke','Preusig','F','1989-06-02'); INSERT INTO employees VALUES(10007,'1957-05-23','Tzvetan','Zielinski','F','1989-02-10'); INSERT INTO employees VALUES(10008,'1958-02-19','Saniya','Kalloufi','M','1994-09-15'); INSERT INTO employees VALUES(10009,'1952-04-19','Sumant','Peac','F','1985-02-18'); INSERT INTO employees VALUES(10010,'1963-06-01','Duangkaew','Piveteau','F','1989-08-24'); INSERT INTO employees VALUES(10011,'1953-11-07','Mary','Sluis','F','1990-01-22');
输出:
10006|1953-04-20|Anneke|Preusig|F|1989-06-02 10007|1957-05-23|Tzvetan|Zielinski|F|1989-02-10 10008|1958-02-19|Saniya|Kalloufi|M|1994-09-15 10009|1952-04-19|Sumant|Peac|F|1985-02-18 10010|1963-06-01|Duangkaew|Piveteau|F|1989-08-24
Sqlite 解法, 执行用时: 9ms, 内存消耗: 3300KB, 提交时间: 2021-05-31
select * from employees order by emp_no limit 5*(2-1),5;
Sqlite 解法, 执行用时: 10ms, 内存消耗: 3192KB, 提交时间: 2020-11-23
select * from employees limit 5, 5;
Sqlite 解法, 执行用时: 10ms, 内存消耗: 3196KB, 提交时间: 2020-07-07
select * from employees limit 5,5
Sqlite 解法, 执行用时: 10ms, 内存消耗: 3268KB, 提交时间: 2020-07-13
select * from employees limit 5,5
Sqlite 解法, 执行用时: 10ms, 内存消耗: 3284KB, 提交时间: 2020-11-23
select * from employees limit 5,5