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General concepts TermMeaningTableRelationSchemaData dictionaryspecial set of relational tables that store information about all tablesMetadatadefinition of a table: info about table name, owner, details about columns and physical storage on disk;obtained by using the DESCRIBE command.Datacontents of a tableRowrecord; tuple; single recordCardinality of the tuplesthe number of rows in the tablePrimary keyattribute unique for each...