mysql databases for dummies

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A DNA database or DNA databank is a database of DNA profiles. A DNA database can be used in the analysis of genetic diseases, genetic fingerprinting for criminology, or genetic genealogy. DNA databases may be public or private, but the largest ones are national DNA databases.
When a match is made from a national DNA database to link a crime scene to an offender who has provided a DNA sample to a database that link is often referred to as a cold hit. A cold hit is of value in referring the police agency to a specific suspect but is of less evidential value than a DNA match made from outside the DNA database. Research shows that DNA databases of criminal offenders reduce crime rates.

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