09 - Constraints ('UNIQUE' && 'CHECK') - PostgreSQL for Beginners
Ave, Coders!
In this lesson, we are going to continue to learn about the constraints, this time we are going to practice how to work with another 2 important constraints:
UNIQUE - makes sure there will be no duplicates
CHECK - checks whether a field's value complies with a certain condition
#avecoders #postgresql #sql
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