如何从 MySQL 查询中返回第 n 条记录?
mysqlmysqli database
要从 MySQL 查询中获取第 n 条记录，可以使用 LIMIT。语法如下 −
select *from yourTableName order by yourColumnName limit n,1;
为了理解上述语法，让我们创建一个表。以下是创建表的查询 −
mysql> create table NthRecordDemo −> ( −> Id int, −> Name varchar(200) −> ); Query OK, 0 rows affected (0.92 sec)
使用以下查询在表中插入一些记录 −
mysql> insert into NthRecordDemo values(100,'John'); Query OK, 1 row affected (0.09 sec) mysql> insert into NthRecordDemo values(101,'Bob'); Query OK, 1 row affected (0.14 sec) mysql> insert into NthRecordDemo values(102,'Carol'); Query OK, 1 row affected (0.22 sec) mysql> insert into NthRecordDemo values(103,'Smith'); Query OK, 1 row affected (0.18 sec) mysql> insert into NthRecordDemo values(104,'Johnson'); Query OK, 1 row affected (0.16 sec) mysql> insert into NthRecordDemo values(105,'Sam'); Query OK, 1 row affected (0.16 sec) mysql> insert into NthRecordDemo values(106,'David'); Query OK, 1 row affected (0.13 sec)
使用 select 语句显示表中的所有记录。查询如下 −
mysql> select *from NthRecordDemo;
以下是输出 −
+------+---------+ | Id | Name | +------+---------+ | 100 | John | | 101 | Bob | | 102 | Carol | | 103 | Smith | | 104 | Johnson | | 105 | Sam | | 106 | David | +------+---------+ 7 rows in set (0.00 sec)
使用以下查询从表中获取第 n 条记录 −
mysql> select *from NthRecordDemo order by Id limit 6,1;
以下是输出 −
+------+-------+ | Id | Name | +------+-------+ | 106 | David | +------+-------+ 1 row in set (0.00 sec)
