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DECODE.sql

sum(decode(extract(year from hire_date),2005, 1, 0)) "2005", sum(decode(extract(year from hire_date),2006, 1, 0)) "2006", sum(decode(extract(year from hire_date),2007 ...
Useful for migrating from oracle to postgres. If you use enterprisedb decode statement may work but case statements will give you better performance compared with decode. Thanks to Enterprisedb ...