在 MySQL 中选择共享最小 (PRICE) 值的多个书名?
mysqlmysqli database
为此，请使用 MySQL MIN()。让我们首先创建一个 −
mysql> create table DemoTable1414 -> ( -> BookTitle varchar(40), -> BookPrice int -> ); Query OK, 0 rows affected (0.82 sec)
使用 insert 在表中插入一些记录 −
mysql> insert into DemoTable1414 values('Deep dive using java',560);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable1414 values('C++ in depth',360);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable1414 values('Data structure in C',590);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable1414 values('Algorithm in C++',1090);
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable1414 values('Java in Depth',360);
Query OK, 1 row affected (0.33 sec)
使用 select 语句显示表中的所有记录 −
mysql> select * from DemoTable1414;
这将产生以下输出 −
+----------------------+-----------+ | BookTitle | BookPrice | +----------------------+-----------+ | Deep dive using java | 560 | | C++ in depth | 360 | | Data structure in C | 590 | | Algorithm in C++ | 1090 | | Java in Depth | 360 | +----------------------+-----------+ 5 rows in set (0.00 sec)
以下查询用于选择多个具有最低价格的书名 −
mysql> select BookTitle from DemoTable1414 -> where BookPrice= ( select min(BookPrice) from DemoTable1414);
这将产生以下输出 −
+---------------+ | BookTitle | +---------------+ | C++ in depth | | Java in Depth | +---------------+ 2 rows in set (0.00 sec)
