As a database designer, you were asked to design a relation (table) that will store customer's data from multiple difference sources (e.g. disparate data sources). The relation will include a column containing the customerID from the source system and another column containing the sourcelD. A sample of the data pertaining to this relation is shown below: Write a DDL statement that will create the above customer relation. Ensure that the relation does not allow duplicates for a customerID within a sourcelD. You may designate any reasonable number of characters for the customer name column. In the answer space below, write a DDL statement that will perform the required functionality specified above