select if then postgresql
SELECT field1, field2,
CASE
WHEN field1>0 THEN field2/field1
ELSE 0
END
AS field3
FROM testselect if then postgresql
SELECT field1, field2,
CASE
WHEN field1>0 THEN field2/field1
ELSE 0
END
AS field3
FROM testpostgress if
-- use postgress case
SELECT name, continent, indep_year,
CASE WHEN indep_year < 1900 THEN 'before 1900'
WHEN indep_year <= 1930 THEN 'between 1900 and 1930'
ELSE 'after 1930' END
AS indep_year_group
FROM countries
ORDER BY indep_year_group;Copyright © 2021 Codeinu
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