无法在备忘,OLE或超链接对象(Access 2007 - 外连接)上加入 [英] Cannot join on Memo, OLE, or Hyperlink Object - Access 2007 - outer joins
问题描述
我在Access 2007 ...中有2个这样的表...
表1 - tbEmployees详细信息
/ pre>
FieldName Data类型
PK * ID自动编号
EmployeeID编号
第一文本
... ...
表2 - tbEmployeesQualification
字段名数据类型
PK * ID自动编号
CV(附件)附件
资格/证书(备忘录)
技能(备忘录)
我在设计阶段的关系。我试图使用外部联接从上表,因为我想附加每个员工的简历。我试过以下。
将标识从tbEmployees Details拖动到tbEmployeesQualification。然后加入属性屏幕出现...左表 - 右表 -
tbEmployees详细信息tbEmployeesQualification
左栏 - 右栏
ID资格/证书
我选择了选项2 -
为了测试这个,我使用了Query。当我使用查询向导似乎查询显示结果,包括所有的数据从tbEmployees详细信息和所有的数据tbEmployeesQualification BUT
当我使用查询设计我得到以下错误。 ..
无法加入备忘录,OLE或超链接对象([tbEmployees Details] .ID = [
tbEmployeesQualification ]。[Qualification / Certificate])
错误是正确的。我知道ID有Autonumber作为数据类型和资格/证书从tbEmployeesQualification作为备忘录数据类型,因此内连接不能使用。所以我的问题是如何解决这个问题?或者可以通过使用外连接来解决,或者我需要做一些我还没有看到的东西?
感谢您提供时间回答我的问题。
EDIT -
我认为外键也许是答案。我刚刚在tbEmployeesQualification中添加了数据类型为ID的ID。创建一对多关系一个是tbEmployees详细信息,许多是tbEmployeesQualification。我会马上更新。解决方案问题是通过使用一对多关系解决的。在tbEmployees表中,我将名字放在具有数据类型Text的字段名称(PK)中。再次在tbEmployeesQualification表中,我创建了字段名FirstName,数据类型为Text。我链接到tbEmployees表(一)到tbEmployeesQualification表(很多)。这解决了这个问题。
I have 2 tables like this in Access 2007...
Table 1 - tbEmployees Details FieldName Data Type PK *ID Autonumber EmployeeID Number First Text .... ... Table 2 - tbEmployeesQualification FieldName Data Type PK *ID Autonumber CV (attachment) Attachment Qualification / Certificate (memo box) Skills (memo box)
I am at design stage in relationship. I am trying to use outer join's from the above tables because I want to attached CV's for each employee. I have tried the following. Drag the ID from tbEmployees Details onto the tbEmployeesQualification. Then the Join Properties a screen appears...
Left Table - Right Table - tbEmployees Details tbEmployeesQualification Left Column - Right Column ID Qualification / Certificate
I have selected Option 2 - Include ALL records from .... where the join fields are equal.
To test this I have used Query. When I use Query Wizard it seems query shows results that includes all the data from tbEmployees Details and all the data tbEmployeesQualification BUT
when I use Query Design I get the following error...
Cannot join on Memo, OLE, or Hyperlink Object ([tbEmployees Details].ID=[ tbEmployeesQualification].[Qualification/Certificate])
The error is correct. I know ID has Autonumber as data type and Qualification / Certificate from tbEmployeesQualification as memo data type so therefore inner join cannot be used. So my question is how do I solve this problem? or can it be solved by using outer joins or do I need to do something else that I have not seen?
Thanks in advance for the time to answer my question(s).
EDIT - I think foreign key maybe the answer. I have just added ID with data type as Number in the tbEmployeesQualification. Create one to many relationship one is tbEmployees Details and many is tbEmployeesQualification. I will update soon.
解决方案The problem was solved by using one-to-many relationship. In tbEmployees Table I put First Name in Field Name (PK) with data type Text. In tbEmployeesQualification table again I created Field Name FirstName with data type Text. I linked tbEmployees Table (one) to tbEmployeesQualification table (many). This solved the problem.
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