Advantage Odbc Driver Foxpro Commands
Advantage Database Server and Visual FoxPro. The Advantage ODBC driver. Another way to create a remote view is with the CREATE SQL VIEW command in Visual FoxPro.
I cannot tell from the OP what you have actually done, but it sounds like you are expecting to be able to use an ODBC driver with an existing Visual FoxPro application without changing the application from the direct table access. That is not possible. Here is a showing an example of using ODBC to get to a table that is over the 2GB limit. If I recall correctly, it shows how to use views to access the data; doing it that way can minimize the number of changes you need to make. More information about.
You can also use ODBC 'directly' with statements. It is also possible to use OLE DB with if you prefer that over ODBC.
Using Visual FoxPro to Access Remote Data Using Visual FoxPro to Access Remote Data McAlister Merchant, Microsoft Corporation Introduction Microsoft® Visual FoxPro provides ways to connect to remote data of various types, including data created in non-tabular format, on different platforms, and from different products. You can get data of almost any type, as long as you know the format and have permission from the server administrator to access it. To do this, Visual FoxPro uses Open Database Connectivity (ODBC) technology, SQL drivers and language, and the speed and object-oriented programming features of Visual FoxPro. ODBC services are handled by the drivers available in your operating system and those supplied with Visual FoxPro. To use these services, you need to have information about your data source and, perhaps, a password.
Note You might also need to install additional SQL-Client software. Check with the remote data system administrator for details. Once you set up Visual FoxPro to access the data, you can use the data remotely or locally, in views or using SQL pass-through queries. Creating Views and Connections A view is an updatable cursor that consists of fields from one or more remote or local tables or other views.
A multitable view functions on two or more related tables. View definitions are stored only in databases. Views might include join conditions for related remote or local data and specifications for handling updates and update conflicts. Views provide a data set that you can browse or use to update data you access with Select-SQL statements. Remote views provide the same functionality through remote ODBC data sources. A view is created the same way as a query, but when the view is based on a named connection, you can specify parameters that enable a user to redefine the scope of the view at run time.
Although queries and views are similar, there are significant differences: Queries • Describe the desired data in Select-SQL statements saved as a text file with a.QPR extension. • Exist outside of databases. Marilena De La P7 Torent. • Can function against views as well as against tables. • Can return output to a cursor, table, array, screen, or browse window. • Are read-only.
Views • Describe, within databases, the details of connections to tables or views. • Respond to all table or cursor commands. • Accept run-time controls on scope and functionality (views are customizable and updatable). • Display and/or update source data. A view might also contain specifications on filter and join conditions, indexes, and update criteria. Though queries can display a 'snapshot' of a data source, views, because of their run-time characteristics, are true connections to their data sources.
Local View A local view describes, in a database, the connection to tables that are in scope. In local views you store Select-SQL descriptions of native Visual FoxPro data without using ODBC protocols. The data accessed need not be contained in the database. You create a local view by using the View Designer or the Visual FoxPro CREATE VIEW or CREATE SQL VIEW commands to describe a data set from tables or views in the current database. Godfather 2 Ps3 Safecracker. Remote View A remote view describes the connection or data source in an SQL statement in the syntax of the remote server.
You create a remote view by using the View Designer or the CREATE SQL VIEW REMOTE command and using remote SQL syntax to describe the data set. You must specify a remote ODBC data source or a named remote connection to data outside the Visual FoxPro database.
Connections and Named Connections A connection is a definition that specifies the name of a data source. A named connection is a definition, stored in a database, that additionally lets you set properties that optimize the flow of data between Visual FoxPro and the data source. A named data source can include information about user ID, access password, database name, logon prompting and verification. By using a named connection in an application, you make it easy for a user to get to the right place, the right way; all the connection information is associated with the view used to display or manage the data-even if the data is remote.