Difference between revisions of "Where clause"
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Only small cities, having population less than 1,000 people, will be selected. | Only small cities, having population less than 1,000 people, will be selected. | ||
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Latest revision as of 22:15, April 1, 2008
A where clause is used in Structured Query Language (SQL) to determine a subset records which should be returned from a larger whole. The where clause can function as a filter, selecting records that fit certain criteria, or it can be used to join related tables.
Examples
SELECT city WHERE population < 1000
Only small cities, having population less than 1,000 people, will be selected.