Updating Data

To update data, you can use buffers, transactions, or views.

In This Section

• How to: Perform Updates Using Buffers
  Explains how to enable record or table buffering, after choosing the type of buffering method and type of locking.

• Managing Updates Using Transactions
  Describes transactions and how to use them to protect update operations and use transactions to recover from an entire section of code as a unit.

• Managing Updates by Using Views
  Discusses the use of views to manage data conflicts in multiuser environments.

Reference

• TABLEUPDATE( ) Function
  Commit changes made to a buffered row, a buffered table, cursor, or cursor adapter.

• TABLEREVERT( ) Function
  Discard changes made to a buffered row or a buffered table or cursor and restore the OLDVAL( ) data for remote cursors and the current disk values for local tables and cursors.

Related Sections

• Programming for Shared Access
  Explains how programming for shared access makes it possible for you to create an application that will run on several machines in a network environment.

• Controlling Access to Data
  Discusses effective data management in a shared environment, and how you must choose how to access the data and when and where to limit that access.

• Managing Conflicts When Updating Data
  Discusses how you can anticipate and manage conflicts that result from data update operations.