Using a single transaction also reduces the number of commits, which saves time and resources.
The focus of this article is to think about how Oracle developers and DBAs manage changes between different database environments.
This constraint forces the column to contain a value in every row.
The expression can include columns from the same table, constants, SQL functions, and user-defined PL/SQL functions. Some column types, such as clause for these segments that will override storage parameters specified at the table level.
After the rows are deleted, they are replaced along with new rows by a single insert operation from the staging table.
Use this method if all of the following are true: If any of these criteria do not apply, use Merge Method 2: Specifying a column list, described in the following section.
A common problem that Oracle developers and DBAs encounter when looking at deploying Oracle schema and data changes is interacting with many different Oracle environments.
A team or several separate developers could all be working towards getting some new features into the database.
How are schema changes deployed from one environment to another?
What options are available to compare two Oracle schemas before and after migration?
The second part describes some MDS tasks that help in the management of the SCA metadata files inside the repository.
The third part shows how to develop SCA composites in combination with an MDS repository.