Data Consistency
The SAP transaction concept describes how database changes can be programmed.
See also the descriptions in the ABAP Editor under Utilities ® Keyword Documentation ® ABAP Overview ® Description of Syntax and Concepts ® Transaction processing.
The statements that carry out the actual database changes are a part of Open SQL.
Transactions and Logical Units of Work
Creating Update Function Modules
Calling Update Function Modules
Error Handling for Bundled Updates