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Why doesn SQL Server permit an ORDER BY clause in the definition of a view?

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Why doesn SQL Server permit an ORDER BY clause in the definition of a view?

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10

SQL Server excludes an ORDER BY clause from a view to comply with the ANSI SQL-92 standard. Because analyzing the rationale for this standard requires a discussion of the underlying structure of the structured query language (SQL) and the mathematics upon which it is based, we can’t fully explain the restriction here. However, if you need to be able to specify an ORDER BY clause in a view, consider using the following workaround: USE pubs GO CREATE VIEW AuthorsByName AS SELECT TOP 100 PERCENT * FROM authors ORDER BY au_lname, au_fname GO The TOP construct, which Microsoft introduced in SQL Server 7.0, is most useful when you combine it with the ORDER BY clause. The only time that SQL Server supports an ORDER BY clause in a view is when it is used in conjunction with the TOP keyword. (Note that the TOP keyword is a SQL Server extension to the ANSI SQL-92 standard.

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