资讯

Microsoft Access is a powerful database that is part of the Microsoft Office package, and by combining its user-friendly interface with the flexibility of SQL (Structured Query Language), you can ...
You can query across databases in Oracle and Sql Server, with a little work. I'm not sure about access. <BR>It really would be easier to just link the tables I would think.
Practical .NET Dynamic Data Access with Plain Old SQL and SqlQuery You don't have to give up using dynamic SQL just because you're using Entity Framework. The Entity Framework SqlQuery method will ...
You can’t upsize Access tables that contain dates earlier than January 1, 1953. Use saved queries as opposed to SQL statements as the data sources for Access objects.
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
The APIs would automatically be queryable, albeit arguably not joinable with the elegance that SQL affords. But these two services, like most, don’t present a unified interface to their APIs.
If you're using Access I recommend just using the QBE Grid. There you can add two or more tables to the query, drag the fields you want in the lower part, and then for activityID put the necessary ...
Note: This example uses a Version 6 view descriptor with the Pass-Through Facility to access DBMS data. Beginning in Version 7, you can associate a libref directly with your DBMS data and use the ...