What should be done to ensure that entire update is cancelled even if any part of the multiple transactions done on it fails?
You are developing a client/server application. The client application will access only some of the data in the result set .You want to minimize the amount of network traffic. Which type of database cursor should you use in the application?A. Dynamic server-side cursor B. Dynamic keyset client-side with pessimistic locking C. Static client-side cursor with optimistic locking D. Non-keyset client-side cursor.
Answer: A
What is the best option for getting values in a component maintaining the best possible performance and compatibility in a 3-tier application which calls a DBClass component on a remote server via DCOM and the DBClass insert several values to a table?
What property must be set to write back the changes to the datasource where Data Bindings collection is used to bind fields on ActiveX control to the datasource?
Which type of locking in a Visual Basic application to ensure that only one user at a time can have a record open for editing?
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