选择*从表中的a和b之间的Col1，Col2

Question

我有一张这样的不同包装的表：

term package1 package2 package3
1yr     1000     2000     3000
2yr     1800     3800     5800
3yr     2500     5500     7500 

现在，我想选择值在a和b之间的所有行。

我尝试使用这个：

SELECT * FROM Products WHERE package1, package2 BETWEEN 1000 AND 5000

Answer 1

如果要让行中的任何值介于1000到5000之间，则需要测试它们中的每一个并与OR组合：

SELECT * FROM Products 
WHERE package1 BETWEEN 1000 AND 5000
OR package2 BETWEEN 1000 AND 5000
OR package3 BETWEEN 1000 AND 5000

如果要让行 all 的值在范围内，请将OR更改为AND。

Answer 2

有两种方法可以实现此目的。在或>和<符号as explained here

之间使用

Answer 3

不幸的是，我认为您将不得不执行多个where语句，例如：

SELECT * FROM Products 
WHERE (package1 BETWEEN 1000 AND 5000) OR
(package2 BETWEEN 1000 AND 5000) OR
package3 BETWEEN 1000 AND 5000

或者如果您需要所有软件包年份都在该行的那些值之内：

WHERE (package1 BETWEEN 1000 AND 5000) AND
(package2 BETWEEN 1000 AND 5000) AND
package3 BETWEEN 1000 AND 5000

Answer 4

您的查询应针对与和组合的每个列

  SELECT * FROM Products 
 WHERE (package1 BETWEEN 1000 AND 5000) 
 And (package2 BETWEEN 1000 AND 5000) 
 And (package3 BETWEEN 1000 AND 5000);