You can't use DDL, such as CREATE TABLE or ALTER TABLE, in Visual Fox Pro stored procedures.For information on language you can use in stored procedures, see Support for Rules, Triggers, Default Values, and Stored Procedures. Use the SQL WHERE clause to identify the rows you want to update.And it may well be true for the majority of applications: there are only a handful of users and fewer than 20,000 or so records even in the largest tables.For the performance benefit aspect, I would say that such an application and organization would likely not benefit (though they may still receive some integrity benefit, as we'll discuss in the next section).And I still think that for the majority of Fox Pro implementations, using native Fox tables is still the way to go.But I have become a convert of sorts, in that I now see many applications, even relatively small ones, where using a SQL server backend makes sense.
Queries against large tables creates a great deal of network traffic.The parameter value can be supplied at run time or passed programmatically to the view.You can't access remote views in a Visual Fox Pro database using the driver.You can improve performance on large fetches by using the background fetching feature of the driver.Background fetching uses a separate thread to fetch data requested from a specific data source.For our purposes here, the Visual Fox Pro application is the client."Server" refers to the SQL server "back-end", the piece that is responsible for storing and managing the data, ensuring integrity and security, and responding to the client (Visual Fox Pro) requests for data or transactions.If you're a Visual Fox Pro developer, you should be aware that the default setting for SET ANSI is ON for the driver, in contrast to a default setting of OFF for Visual Fox Pro. Note The feedback system for this content will be changing soon. If content within a comment thread is important to you, please save a copy.The default ON setting for SET ANSI allows Visual Fox Pro data sources to behave consistently with other ODBC data sources that typically perform exact comparisons. For more information on the upcoming change, we invite you to read our blog post.Dial-up Networking and Remote Access give the users in that satellite office the tools to establish a dial-up network connection and be a node on the network, just like a PC in the host office (albeit with a much slower connection).But with the traditional VFP application using native Fox tables, imagine dragging thousands of records across a phone line just to do a single query that will ultimately reject 98% of the data sent it.