Php 使用mysql在单个查询中执行多个查询

我有两个问题。一个是总销售额，另一个是净销售额。我想在一个查询中报告。我该怎么做

总销售额

Location Name                                     Gsale 
(sub-dealer-temp)                                   2   
2049 (Sub-Dealer) Always Protected, LLC             3   
2052 (Sub-Dealer) Alert Security, Inc               4   
2055 (Sub-Dealer) Alarm Connection, LLC             5   
2067 (Sub-Dealer-t) Activation Dept, LLC            67  
2068 (Sub-Dealer-t) Premier Security USA, LLC       8   

净销售额

location Name                                     Nsale 
2055 (Sub-Dealer) Alarm Connection, LLC             5   
2067 (Sub-Dealer-t) Activation Dept, LLC           67   
2068 (Sub-Dealer-t) Premier Security USA, LLC       8   
2783 ((Sub-Dealer-t) Premier abc                    45  
2783 ((Sub-Dealer-t) Premier xyz                    32  

结果

Lc.Name                                Gsale             Nsale
(sub-dealer-temp)                        2               null
2049 (Sub-Dealer) Always Protected, LLC  3               null
2052 (Sub-Dealer) Alert Security, Inc    4               null
2055 (Sub-Dealer) Alarm Connection, LLC  5                5
2067 (Sub-Dealer-t) Activation Dept, LLC 67               67
2068 (Sub-Dealer-t) Premier Security US  8                8
2783 ((Sub-Dealer-t) Premier abc        null              45
2783 ((Sub-Dealer-t) Premier xyz        null              32

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您可以使用下面的联接或联合来进行联接查询

     select g.location,g.name,g.Gsale,n.Nsale from gross sale g 
     join net sale n on g.location=n.location

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您可以使用以下sql代码：

表名1：销售总额现在是

Gross\u Sale

和列名

lcName

，

Gsale

SELECT a.lcName, a.Gsale, b.Nsale FROM gross_sale a 
FULL OUTER JOIN net_sale b ON a.lcName=b.lcName ORDER BY a.lcName;

表名2：净销售额现在是

Net\u Sale

和列名

lcName

，

Nsale

SELECT a.lcName, a.Gsale, b.Nsale FROM gross_sale a 
FULL OUTER JOIN net_sale b ON a.lcName=b.lcName ORDER BY a.lcName;

---

提示：

UNION

请学习设置垂直块的格式。您想要一个完整的外部连接，而不是左连接右连接？请看列

Gsale

？@Drew您能解释清楚吗？左连接做什么？@Drew很抱歉，是的，它将完全外部连接。