A quick reference for the Office training course titled Create table relationships (Access basics, part 2).
在Access 2007、Access 2010 或 Access 2013 中,单击“数据库工具”选项卡上的“显示/隐藏”组中的“关系”。 如果尚未在数据库中定义任何关系,则会自动显示"显示表”对话框。 如果要添加想要相关的表,但不显示“显示表”对话框,请单击“关系”菜单上的“显示表”。
在Access 2007、Access 2010 或 Access 2013 中,单击“数据库工具”选项卡上的“显示/隐藏”组中的“关系”。 如果尚未在数据库中定义任何关系,则会自动显示"显示表”对话框。 如果要添加想要相关的表,但不显示“显示表”对话框,请单击“关系”菜单上的“显示表”。
定义表之间的关系时,必须在字段级进行CONSTRAINT声明。 这意味着约束是在CREATE TABLE语句中定义的。 要应用约束,可在字段声明后使用CONSTRAINT关键字,命名约束,命名约束引用的表,并命名该表内将组成匹配外键的字段。 以下语句假设已经建立了 tblCustomers 表,并且假设对“CustomerID”字段定义了一个主...
If Microsoft Accounts (MSA) or Microsoft Entra accounts aren't registered in your Microsoft Entra tenant, you can't access Dataverse on the common endpoint.You may see an error message similar to this one:Microsoft EntraSTS50020: user account <contoso@contoso.com>; from identity provider https...
打开Access 并选择 "自定义 Web 应用程序"。 Enter a name and the web location for your app. You can also choose a location from the Locations list and choose Create. 在“希望跟踪什么?”框中键入 问题,然后选择 Enter。图 1 显示了一个可能对跟踪问题有用的模板列表。 图1. 与问题搜索相匹配的...
Practical Learning: Introducing RelationshipsStart Microsoft Access and create a Blank Database Set the name of the database as Ceil Inn1 and click Create Close the default table without saving it To create a new table, on the Ribbon, click Create and, in the Tables section, click the Table...
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When ON, row locks are allowed when you access the index. The Database Engine determines when row locks are used. When OFF, row locks aren't used. The default is ON. ALLOW_PAGE_LOCKS = { ON | OFF } When ON, page locks are allowed when you access the index. The Database Engine ...
When ON, row locks are allowed when you access the index. The Database Engine determines when row locks are used. When OFF, row locks aren't used. The default is ON. ALLOW_PAGE_LOCKS = { ON | OFF } When ON, page locks are allowed when you access the index. The Database Engine ...