Validating the expression of zero
The availability of human genome sequence has transformed biomedical research over the past decade.
In this tutorial, you learn how to use regular expression support.When you search for data in a text, you can use this search pattern to describe what you are searching for.A regular expression can be a single character, or a more complicated pattern. It could be easily adapted to handle other date formats and checking for out of range dates. There were also columns that were out of the normal range for date values (AD 1, 0600, etc). I figured that someone may have been struggling with this and the lack of an ISDATE function for expressions.