'case' in sql

Author: atomicno28

conditional case.sql

@@ -0,0 +1,13 @@
+case - start the condition
+when (constraint)
+then -> execution
+else -> if not above all condition
+end - 
+
+select username, case
+when rating between 1000 and 1199 then '4 star rated'
+when rating betweem 1200 and 1399 then '5 star rated'
+when rating between 1400 and 1599 then '6 star rated'
+else 'Not a coder.' 
+end as category
+from CODECHEF;