tag:blogger.com,1999:blog-7395977411859619892.post3107686993894296830..comments2024-01-30T09:21:06.579+01:00Comments on About Oracle: Simulating LAG/LEAD IGNORE NULLSRob van Wijkhttp://www.blogger.com/profile/00499478359372903250noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-7395977411859619892.post-10052684750851495712016-05-02T10:12:17.461+02:002016-05-02T10:12:17.461+02:00We Need Not InLineView Since Oracle10g.
Because Fi...We Need Not InLineView Since Oracle10g.<br />Because First_Value and Last_Value Support "ignore nulls".<br /><br />select empno,comm,<br />Lead(comm ignore nulls) over (order by empno) as next_comm1,<br />First_Value(comm ignore nulls)<br />over(order by empno Rows BetWeen 1 Following<br /> and Unbounded Following) as next_comm2,<br />Lag(comm ignore nulls) Anonymoushttps://www.blogger.com/profile/06131005986551845250noreply@blogger.comtag:blogger.com,1999:blog-7395977411859619892.post-22087571358143508382014-08-01T16:05:33.155+02:002014-08-01T16:05:33.155+02:00Thanks.. this will solve my problem until we upgra...Thanks.. this will solve my problem until we upgrade...mike pazdahttps://www.blogger.com/profile/17789814321273965764noreply@blogger.comtag:blogger.com,1999:blog-7395977411859619892.post-90150601067754224792011-10-18T12:11:52.673+02:002011-10-18T12:11:52.673+02:00Hello,
it works fine as select but when I want us...Hello,<br /><br />it works fine as select but when I want use this in the procedure I get an error: "Found: 'LAG' Only FIRST_VALUE and LAST_VALUE are valid with IGNORE NULLS".<br /><br />Do you have any solution for this?<br /><br />Thank you for sharingabcdefhttps://www.blogger.com/profile/05468295380420334884noreply@blogger.comtag:blogger.com,1999:blog-7395977411859619892.post-49660065074079784692010-09-30T23:12:13.059+02:002010-09-30T23:12:13.059+02:00Nice. I didn't know about 11g's feature of...Nice. I didn't know about 11g's feature of "ignore null" option... this post did the majic for me.<br /><br />Thank you for sharing!!Unknownhttps://www.blogger.com/profile/15250365581889184682noreply@blogger.comtag:blogger.com,1999:blog-7395977411859619892.post-83878717163221231692010-06-16T12:49:42.993+02:002010-06-16T12:49:42.993+02:00Thanks, Maxim.
That's an ingenious way of spli...Thanks, Maxim.<br />That's an ingenious way of splitting the null and non null values in your window!Rob van Wijkhttps://www.blogger.com/profile/00499478359372903250noreply@blogger.comtag:blogger.com,1999:blog-7395977411859619892.post-79166175152543906132010-06-15T23:47:08.709+02:002010-06-15T23:47:08.709+02:00Well, on your sample data that will work without s...Well, on your sample data that will work without suquery (you can arrange window in that manner only for offset of 1 though).<br /><br />select empno,<br /> ename,<br /> job,<br /> mgr,<br /> comm,<br /> lag(comm ignore nulls) over(order by empno) lag_ignore_null,<br /> last_value(comm) over(order by nvl2(comm, empno, empno * 10000) <br /> range between Maximhttps://www.blogger.com/profile/03678566399786170754noreply@blogger.com