javaEEday07-DQL-Select-分页查询

mysql-day02-DQL.sql

@@ -146,4 +146,30 @@ select * from tb_emp order by entrydate asc,id desc;
 select * from tb_emp where name like '%张%'
                        and gender = 1
                        and entrydate between '2000-01-01' and '2010-01-01'
-order by update_time asc;
+order by update_time asc;
+
+
+
+--  =================== 分页查询 ======================
+-- 1. 查询第1页员工数据, 每页展示10条记录
+select * from tb_emp limit 10; -- 如果是0索引开始取，是可以省略，建议别省略
+
+select * from tb_emp limit 0,10;
+
+-- 2. 查询第2页员工数据, 每页展示10条记录
+select * from tb_emp limit 10,10;
+
+-- 3. 查询第3页员工数据, 每页展示10条记录
+select * from tb_emp limit 20,10;
+
+-- 分页的公式：页码（page）和每页显示的数量(pageNum)----->起始索引 = (页码 - 1)*每页显示的数量
+
+-- 练习 : 员工管理列表查询 , 根据最后操作时间, 进行倒序排序 进行分页显示，一页显示5条，显示第二页的数据
+-- 条件 : name , gender , entrydate
+
+select * from tb_emp
+where name like '%张%'
+  and gender = 1
+  and entrydate between '2000-01-01' and '2020-01-01'
+order by update_time desc
+limit 5,5;