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A design pattern is simply a recognised way of solving a problem that works in different specific circumstances. Do such things exist in SQL? Of course - for example implementing many to many relationships between two tables using a third table.
A design pattern, or design solution, or simply design, is a response to a problem. The structure of a pattern is based (a) on the traditional pattern structure as delivered by Gamma et al [GHJV95] and (b) on the fundamentals of everyday operations around a database system.
The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in conjunction with the LIKE operator: The percent sign (%) represents zero, one, or multiple characters.
Is there such a thing as Design Patterns in SQL ???
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