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Saturday, 7 November 2009

Logical Query Processing Phases - SQL

Phases involved in the logical processing of a query:

(8) SELECT (9) DISTINCT (11) (top_specification) (select_list)

(1) FROM (left_table)

(3) (join_type) JOIN (right_table)

(2) ON (join_condition)

(4) WHERE (where_condition)

(5) GROUP BY (group_by_list)

(6) WITH (CUBE ROLLUP)

(7) HAVING (having_condition)

(10) ORDER BY (order_by_list)


Obtained from:
http://www.amazon.co.uk/Inside-Microsoft-SQL-Server-2005/dp/0735623139/ref=sr_1_2?ie=UTF8&s=books&qid=1257628926&sr=8-2

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