überprüfen Monat im Quartal sql

Question

Wie zu überprüfen, wo bestimmten Monat in bestimmten Quartal eines Jahres in SQL db2 ist. wie Monate 1-4 in Quartal 1 wie als ich möchte prüfen, ob Monat-1, in dem Quartal des Jahres hat

Answer 1

versuchen dieses

SELECT 
    MyDate, 
    CASE 
     WHEN MONTH(MyDate) BETWEEN 1 AND 3 THEN convert(char(4), YEAR(MyDate) - 1) + 'Q3' 
     WHEN MONTH(MyDate) BETWEEN 4 AND 6 THEN convert(char(4), YEAR(MyDate) - 1) + 'Q4' 
     WHEN MONTH(MyDate) BETWEEN 7 AND 9 THEN convert(char(4), YEAR(MyDate) - 0) + 'Q1' 
     WHEN MONTH(MyDate) BETWEEN 10 AND 12 THEN convert(char(4), YEAR(MyDate) - 0) + 'Q2' 
    END AS Quarter 
FROM 
    MyTable 
order by Quarter 

ODER

SELECT 
    date 
    , CASE 
     WHEN MONTH(date) BETWEEN 7 AND 9 THEN 'First Quarter' 
     WHEN MONTH(date) BETWEEN 10 AND 12 THEN 'Second Quarter' 
     WHEN MONTH(date) BETWEEN 1 AND 3 THEN 'Third Quarter' 
     WHEN MONTH(date) BETWEEN 4 AND 6 THEN 'Fourth Quarter' 
    END AS quarter 
FROM Stuff 

Answer 2

DB2 ein eingebautes QUARTER function das macht, was ich denke, du willst:

SELECT QUARTER(CURRENT TIMESTAMP) FROM SYSIBM.SYSDUMMY1