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如何获得最佳的保存SQL PHP_Php_Mysql_Sql - Fatal编程技术网
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如何获得最佳的保存SQL PHP

php mysql sql

如何获得最佳的保存SQL PHP,php,mysql,sql,Php,Mysql,Sql,如果我有下表： ID Name Price RRP 1 Shirt 10.00 20.00 2 Jeans 15.00 30.00 如何检索保存量最大（ID 2）的行 +1用于按要求选择行。+1用于按要求选择行。 Select Id,Name,Price,RRP FROM TableName Order By (RRP-Price) Desc Limit 1 SELECT ID, Name, Price, RRP, RRP-Price AS saving FROM

如果我有下表：

ID  Name   Price  RRP
1   Shirt  10.00  20.00
2   Jeans  15.00  30.00
如何检索保存量最大（ID 2）的行

+1用于按要求选择行。+1用于按要求选择行。 
Select Id,Name,Price,RRP FROM TableName Order By (RRP-Price) Desc Limit 1

SELECT ID, Name, Price, RRP, RRP-Price AS saving 
FROM Table 
ORDER BY saving DESC