DLookup上个月的条件

Question

我有两个查询，第一个显示我将在报告中用作期末余额的金额余额。

我陷入困境的另一个查询应该显示期初余额。我收到这样的查询：

Edate By Month      closingbal      
April               $ 30000
May                 $ 25000
June                $ 27000

现在，我想要这样的查询：

Edate By Month      closingbal      
April               0
May                 30000
June                25000
July                27000

我一个月的DLookup条件部分有问题。

Closingbal: Dlookup("[closing balance]","qryclosingbalaance","Edate By Month" =<"[Edate By Month]")

Answer 1

字段具有空格，请使用[ ]。 <=不适用于月份名称。需要月份号。如果要保存月份名称，则需要转换为月份号。如果该字段实际上具有月份号，而它只是显示月份名称的查找，请尝试：

Closingbal: Dlookup("[closing balance]","qryclosingbalaance","[Edate By Month]=<" & [Edate By Month])