What is a mechanism to manage database tables with a large number of columns in MySQL? -
i have table has more 300 different columns. these columns logically have different sources - survey information, statistically computed, personal information. there mechanism in mysql work separate groups of columns independent table (i.e. have indices applied group, have separate name group...) still keep them in 1 table consistency?
thanks, vladimir
are 300 columns related each other? when task called, of 300 columns needed? chances are, not. if not normalize them 3rd normal form , bind ones related. meaning create primary key separate tables , link them new tables, using foreign keys, holds related columns.
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