Question

我需要显示2012年的商品名称，商品价格和销售数量。我有这个：

@Entity
@Table(name= "tb_key")
public class KeyEntity {

@Id
private Integer companyid;
private Date creationdate;
private String keyencrypted;

public Integer getCompanyid() {
    return companyid;
}
public void setCompanyid(Integer companyid) {
    this.companyid = companyid;
}
public Date getCreationdate() {
    return creationdate;
}
public void setCreationdate(Date creationdate) {
    this.creationdate = creationdate;
}
public String getKeyencrypted() {
    return keyencrypted;
}
public void setKeyencrypted(String keyencrypted) {
    this.keyencrypted = keyencrypted;
}
@Override
public String toString() {
    return "KeyEntity [companyid=" + companyid + ", creationdate=" + creationdate + ", keyencrypted=" + keyencrypted
            + "]";
}



}

这给了我这个

enter image description here

我需要让它看起来像这样：

enter image description here

我该怎么办？

Answer 1

您在寻找sum()而不是count()

SELECT m.item_name
        , SUM(m.price) as price
        , SUM(od.qty) as qty
        , DATE_FORMAT(om.odate, '%Y') as date 
FROM menu as m
INNER JOIN order_detail od ON od.orderid = m.id 
WHERE DATE_FORMAT(om.odate, '%Y') = '2012'      
GROUP BY m.item_name, DATE_FORMAT(om.odate, '%Y') 
ORDER BY od.qty ASC
LIMIT 7;

Answer 2

请检查一下，这将有助于美化您的sql表输出：） Prettifying the select statement output

如果您不希望在输出中显示DATE_FORMAT（om.odate，'％Y'）作为日期，则将其从日期中删除。

我相信您的查询必须是：

选择m.item_name，m.price，COUNT（od.qty）作为qty FROM菜单作为m， order_detail为od，order_main为om在哪里m.id = od.orderid和 DATE_FORMAT（om.odate，'％Y'）='2012'GROUP BY m.item_name ORDER BY数量 ASC LIMIT 7;

SQL-我需要显示2012年的商品名称，商品价格和销售数量

2 个答案: