Database terms

You need to know the main terms related to MySQL and databases in general:

  • Database – a container for a collection of MySQL data.
  • Table – a subcontainer within a database that stores the actual data.
  • Column – a name of a field within a row.
  • Row – a single record within a table.
  • Primary key – a key that uniquely identifies each record in a database table.
  • Foreign key – a key in one table that points to a Primary key in another table.
  • Index – a special lookup table that the database search engine use to speed up data retrieval.
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