Monthly Archives: April 2020


The other day a friend called me with a question on constraints. “I have a table where the combination of two columns must be unique”. My response was: “Use a Unique Constraint on these two columns”.That should work, however…

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Log errors

Just a quick note of something I ran into at my current assignment. I have to import data from external tables into persistent tables. This proces normally is just inserting data into the table, but sometimes a file can be sent in more than once.

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