 
        
Of all of the open source databases; PostgreSQL has always been my favorite.  I have used it on several projects, and it has always proven reliable.  Recently, I have been working on increasingly complex stored procedures.  During development, it can be difficult to determine error states.  A quick way to print output that will be visible is to utilize the raise notice statement.
 It works very similar to print statements in other programming languages.  For example:

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