Connecting two tables based on the values in a common column is called a(n) operation. a. union b. join c. intersection d. liberation

The answer is join.  Connecting two tables based on the values in a common column is called a join operation.  is a means for combining columns from one (self-join) or more tables by using values common to each. The five types of JOIN: Inner, Left Outer, Right Outer, Full Outer and Cross.

B, it is easy to scan for key information. there are times when a lot of information is included in a business letter. the block letter format you find key bits of information quickly, without having to read through the whole paper.