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CASE WHEN selector = 'value1' THEN S1; WHEN selector = 'value2' THEN S2; WHEN selector = 'value3' THEN S3; ... ELSE Sn; -- default case END CASE;Example
DECLARE grade char(1) := 'B'; BEGIN case when grade = 'A' then dbms_output.put_line('Excellent'); when grade = 'B' then dbms_output.put_line('Very good'); when grade = 'C' then dbms_output.put_line('Well done'); when grade = 'D' then dbms_output.put_line('You passed'); when grade = 'F' then dbms_output.put_line('Better try again'); else dbms_output.put_line('No such grade'); end case; END; /When the above code is executed at the SQL prompt, it produces the following result