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Developer-C 11.1
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CREATE OR REPLACE VIEW v1 AS WITH t(url,category) AS ( SELECT 'www.google.com','search' FROM dual UNION ALL SELECT 'www.facebook.com','Social' FROM dual UNION ALL SELECT 'www.twiter.com','Social' FROM dual ) SELECT "search", "Social" FROM ( SELECT t.*, ROW_NUMBER() OVER (PARTITION BY category ORDER BY url) AS rn FROM t ) PIVOT ( MAX(url) FOR category IN ( 'search' AS "search", 'Social' AS "Social" ) ) ORDER BY rn
SELECT * FROM v1
search
Social
www.google.com
www.facebook.com
null
www.twiter.com