Question

我正在处理我的第一个Access 2010数据库，并且在编辑查询返回的记录集时遇到了问题。

我有两张桌子，“药物”和“warehouse_stock”。在“毒品”中，我有药物的名称。在另一张表中，我有相应的信息。对于那些在“药物”表中的药物，药剂师将管理它们的数量和其他相对值，例如具有特定有效期的每种药物的输入量。药剂师可以将“warehouse_stocK”导入药物的相同信息但具有不同的有效期。

“warehouse_stock”中的每一行数据由active_substance / strength / strength_type / dosage_form表征。这四个值在“药物”的行数据中必须相同。药剂师将能够更新现有行数据的curr_date，in_quant，out_quant_expiry_date和品牌（来自“warehouse_stock”），并导入“药物”中存在的新数量的药物。

我现在的查询是：

SELECT warehouse.active_subs,
   warehouse.strength,
   warehouse.strength_type,
   warehouse.dosage_form,
   warehouse.curr_date,
   warehouse.in_quant,
   warehouse.out_quant,
   warehouse.expiry_date,
   warehouse.available_stock,
   warehouse.brand,
   warehouse.ID
FROM   drugs
       RIGHT JOIN warehouse
         ON ( drugs.active_substance = warehouse.active_subs )
            AND ( drugs.strength = warehouse.strength )
            AND ( drugs.strength_type = warehouse.strength_type )
            AND ( drugs.dosage_form = warehouse.dosage_form )
WHERE  ( ( ( warehouse.active_subs ) LIKE
"*" &
Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_act_sub & "*" )
AND ( ( warehouse.strength ) LIKE
"*" &
Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_strength & "*" )
AND ( ( warehouse.strength_type ) LIKE
"*" &
Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_strength_type & "*" )
AND ( ( warehouse.dosage_form ) LIKE
"*" &
Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_dosage_form & "*" ) );

有没有办法让结果更新？

提前感谢任何建议！

Zinonas

Answer 1

尝试：

<...>
warehouse.ID
FROM  warehouse 
LEFT JOIN Drugs
     ON ( drugs.active_substance = warehouse.active_subs )
        AND ( drugs.strength = warehouse.strength )
        AND ( drugs.strength_type = warehouse.strength_type )
        AND ( drugs.dosage_form = warehouse.dosage_form )

Answer 2

您的要求一点都不清楚，标题与您对问题的文字描述以及提供的查询有很大不同，甚至不同。

如果像active_subs，strength，strength_type，dosage_form这样的字段在两个应该具有相同值的表中，那么您的设计可能存在缺陷。你应该从其中一个表中删除它们。为什么不将这些字段放在一个表中并通过id加入它们？

编辑：经过无休止的讨论，这就是我的理解。沟通存在很大差距，所以我相信OP对此并不满意：）

SELECT warehouse.ID, drugs.quantity, warehouse.active_subs, warehouse.strength, 
       warehouse.strength_type, warehouse.dosage_form, warehouse.curr_date, 
       warehouse.in_quant, warehouse.out_quant, warehouse.expiry_date, 
       warehouse.available_stock, warehouse.brand --whatever values you want
FROM   warehouse
JOIN   drugs ON drugs.active_substance = warehouse.active_subs AND 
                drugs.strength = warehouse.strength AND 
                drugs.strength_type = warehouse.strength_type AND
                drugs.dosage_form = warehouse.dosage_form
WHERE  (....); --if ever there is one
UPDATE warehouse_stock SET curr_date=@curr_date, in_quant=@in_quant, 
                           out_quant=@out_quant, expiry_date=@expiry_date, 
                           brand=@brand;

根据OP想要更新的值，我不清楚。在更新查询中使用合适的where子句。

Answer 3

为了使此表可更新，您需要删除From和Where子句中未使用的连接（直到现在）。但是，您提到您尝试仅针对warehouse值的drugs结果过滤Select W.active_subs, W.strength, W.strength_type, W.dosage_form , W.curr_date, W.in_quant, W.out_quant, W.expiry_date , W.available_stock, W.brand, W.ID From warehouse As W Where ( ( ( W.active_subs ) LIKE "*" & Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_act_sub & "*" ) AND ( ( W.strength ) LIKE "*" & Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_strength & "*" ) AND ( ( W.strength_type ) LIKE "*" & Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_strength_type & "*" ) AND ( ( W.dosage_form ) LIKE "*" & Forms!Pharmacy.form!pharmacy_warehouse_stock_Subform.form!warehouse_stock_dosage_form & "*" ) ) And Exists ( Select 1 From drugs As D1 Where D1.active_substance = W.active_subs And D1.strength = W.strength And D1.strength_type = W.strength_type And D1.dosage_form = W.dosage_form )个结果。为此，您应该使用Exists函数，该函数允许您传递相关子查询（内部查询中的项目与外部查询中的项目匹配）。

{{1}}

Access 2010：如何使查询结果可更新？

3 个答案: