我正在为一个旧项目使用coldfusion，并且在查询方面遇到了问题。我需要列出所有单位从我的单位表和每个单位的所有租户付款。它是使用loop-inside-loop构建的，这使得速度非常慢（代码如下）：

<!-- This query returns 511 Units -->
<cfquery name="getPropertyUnits" dataSource="rent">
    Select t.TenantID, u.UnitName
    From Units u
    INNER JOIN Tenants t on U.UnitID = t.UnitID
    Where u.Occupied = 1
    and u.PropertyID = 8
    and t.Prospect = 2
    Order By u.UnitName
</cfquery>
<!-- Loop the query getPropertyUnits -->
<cfloop query="getPropertyUnits">
    <!-- Each loop interaction, I get the transactions -->
    <!-- Just hard code date for testing -->
    <cfquery dataSource="rent" name="getTransactions">
            Select * From TenantTransactions
            Where TenantID = #TenantID#
            AND TenantTransactionDate BETWEEN '2018-05-01' AND '2018-05-23'
            Order By TenantTransactionDate
    </cfquery>
    <!-- Loop the second query -->
    <cfloop query="getPropertyUnits">
        <!-- Work with data -->
    </cfloop>
</cfloop>

有没有办法只进行一次查询并获取所有数据？
谢谢