Week number calculation

>>Script Language and Platform:

This script returns week numbers in current year.

Author: bobozlobo

SELECT ROWNUM week_in_year, TO_DATE(‘1.1.’ ||

TO_CHAR(SYSDATE,’yyyy’)) + ID, TO_DATE(‘1.1.’||

TO_CHAR(SYSDATE,’yyyy’)) + 6 + ID FROM

(

SELECT (a1.id + a0.id) ID

FROM

(

SELECT 0 id FROM dual UNION ALL

SELECT 1 FROM dual UNION ALL

SELECT 2 FROM dual UNION ALL

SELECT 3 FROM dual UNION ALL

SELECT 4 FROM dual UNION ALL

SELECT 5 FROM dual UNION ALL

SELECT 6 FROM dual UNION ALL

SELECT 7 FROM dual UNION ALL

SELECT 8 FROM dual UNION ALL

SELECT 9 FROM dual

) a0

CROSS JOIN (

SELECT 0 id FROM dual UNION ALL

SELECT 10 FROM dual UNION ALL

SELECT 20 FROM dual UNION ALL

SELECT 30 FROM dual UNION ALL

SELECT 40 FROM dual UNION ALL

SELECT 50 FROM dual UNION ALL

SELECT 60 FROM dual UNION ALL

SELECT 70 FROM dual UNION ALL

SELECT 80 FROM dual UNION ALL

SELECT 90 FROM dual

) a1
WHERE MOD((a1.id + a0.id),7) = 0

ORDER BY ID

)

WHERE ROWNUM < 53

Disclaimer: We hope that the information on these script pages is
valuable to you. Your use of the information contained in these pages,
however, is at your sole risk. All information on these pages is provided
“as -is”, without any warranty, whether express or implied, of its accuracy,
completeness, or fitness for a particular purpose…

Disclaimer Continued

Back to Database Journal Home