MyBatis数据映射。采集。关系表

Question

fund_allocation_template

template_id | template_name | 状态 |

1 Mega Lotto 1

2 EZ-2 1

fund_allocation_item

| item_id | item_name |状态|

1慈善1

2操作费用1

3食物津贴1

4交通津贴1

| 5 |灾难受害者| 1 |

r_template_item

| template_id | item_id | item_percentage |

1 1 45.00

1 2 55.00

2 1 40.00

2 2 46.00

//FundAllocationTemplate.java(domain)
private Integer templateID;
private String templateName;
private Integer templateStatus

//FundAllocationItem.java(domain)
private Integer itemID;
private String itemName;
private Integer itemStatus

<resultMap id="fundTemplate" type="FundAllocationTemplate">
    <id property="fundTemplateID"           column="template_id" />
    <result property="fundTemplateName"         column="template_name" />
    <result property="fundTemplateStatus"       column="status" />
    //Association for Status
</resultMap>

<resultMap id="fundItem" type="FundAllocationItem">
    <id property="fundItemID"       column="item_id" />
    <result property="fundItemName"     column="item_name" />
    <result property="fundItemStatus"   column="status" />
    //Association for Status
</resultMap>

FORM
private Integer templateID;
private String templateName;
private BigDecimal totalPercentage;
private Integer status;

表单或页面输出

|分配模板名称|基金模板百分比|状态|

| Mega Lotto | 100％|有效|

| EZ-2 | 86％|有效|

问题：如何在给定的域名和表格设计中显示每个基金模板的总百分比？

Answer 1

使用以下查询：

select T.template_name,SUM(R.item_percentage) as Fund_Template_Percentage, 
(CASE T.status WHEN 1 THEN "Active" ELSE "NOT Active" END) STATUS 
from fund_allocation_template T, r_template_item R 
where T.template_id=R.template_id
GROUP BY R.template_id;