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data base The different types of MySQL columns

mariadb, mysql, percona

Behind virtually all websites and web applications, hides an SQL database. And when designing it, it is necessary to choose with accuracy the different types of columns. Something that sometimes proves more difficult than expected … What is the difference between one CHARand one VARCHAR? What are they BLOB? This small guide will avoid some errors that could well, ultimately cost us a few extra gigabytes and unnecessary slowdowns.