SQL Server Inserting a previous value into the new column -

-

i have these 2 tables:

table1: customername billdate

city - beautification lm            2013-05-30 00:00:00.000 city - beautification lm            2013-06-28 00:00:00.000 city - parks/rt 66                  2012-07-12 00:00:00.000 city - parks/rt 66                  2012-07-12 00:00:00.000

and on...

table2 has field: cyclestartdate

i want insert data table1 table2 following: each unique customername, cyclestartdate billdate previous record. if previous record not exist, replace null 2013-07-1 00:00:00.000.

is possible can that?

if have sql server less 2012, try this

select t.customername, isnull(tp.billdate, '20130701') cyclestartdate table1 t    outer apply (        select top 1 t2.billdate        table1 t2        t2.customername = t.customername , t2.billdate < t.billdate        order t2.billdate desc    ) tp

if have sql server 2012, see lag() function


Comments

Post a Comment

Popular posts from this blog

ios - UICollectionView Self Sizing Cells with Auto Layout -

-
Image
i'm trying self sizing uicollectionviewcells working auto layout, can't seem cells size content. i'm having trouble understanding how cell's size updated contents of what's inside cell's contentview. here's setup i've tried: custom uicollectionviewcell uitextview in contentview. scrolling uitextview disabled. the contentview's horizontal constraint is: "h:|[_textview(320)]", i.e. uitextview pinned left of cell explicit width of 320. the contentview's vertical constraint is: "v:|-0-[_textview]", i.e. uitextview pinned top of cell. the uitextview has height constraint set constant uitextview reports fit text. here's looks cell background set red, , uitextview background set blue: i put project i've been playing on github here . updated ios 9 after seeing github solution break under ios 9 got time investigate issue fully. have updated repo include several examples of different configurations s...
Read more

DOM Manipulation in Wordpress (and elsewhere) using php -

-
DOM Manipulation in Wordpress (and elsewhere) using php - i'm quite new dom manipulation world , head start in order avoid mutual errors. i looking efficient way manipulate content generated wordpress using php. @ moment using simple html dom seems work fine. found domdocument , few others , helpfull if cleared out 1 faster, improve or @ to the lowest degree generate less errors in case of bad markup. also on side can explain syntax (instead of $html @$html) thank much php wordpress domdocument simple-html-dom
Read more

asp.net - Passing parameter to telerik popup -

-
is there way pass parameter telerik similar window.showmodaldialog the way call window.showmodaldialog : window.showmodaldialog(pagename, myargs, 'status:no;dialoghide=true;help:no') myargs parameter passing popup try likes , <script type="text/javascript"> function openradwin(myargs) { radopen("yourpagename.aspx?parameter=" + myargs , "radwindow1"); } </script> <telerik:radwindowmanager id="radwindowmanager1" runat="server" enableshadow="true" visiblestatusbar="false"> <windows> <telerik:radwindow id="radwindow1" runat="server" showcontentduringload="false" width="400px" height="400px" title="telerik radwindow" behaviors="default"> </telerik:radwindow> </windows> </telerik:radwindowmanager> and , @ page_load of...
Read more