Inserting or updating rows in a table
Two of the most common operations on databases, besides retrieving data, are inserting and updating rows in a table.
PDI has several steps that allow you to perform these operations. In this recipe you will learn to use the Insert/Update step. Before inserting or updating rows in a table by using this step, it is critical that you know which field or fields in the table uniquely identify a row in the table.
Note
If you don't have a way to uniquely identify the records, you should consider other steps, as explained in the There's more... section.
Assume this situation: you have a file with new employees of Steel Wheels. You have to insert those employees in the database. The file also contains old employees that ...
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