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Featured Database Articles

SQL Scripts & Samples

Posted Apr 6, 2007

Week number calculation

By DatabaseJournal.com Staff



>>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


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