sql server - WHERE - Display value in Column1 only if matches value in Column2 -


i have 2 columns of date/time data, 1 table. column1 has multiple values , 1 displayed in query. column2 have 1 date/time value matches recent value column1. i'm interested in displaying matched value, in column1. 

column1 2014-03-08 00:00:00.000 2014-03-08 00:00:00.000 2014-03-08 09:03:00.000 2014-03-10 01:58:00.000  column2 2014-03-10 01:58:00.000

the data/time value varies day day can't write statement based on specific time stamp. recent value in column1 display if matches other in column2. conventional thinking be: 

where column1 = 'column2'  or column1 >= 'column2' <-- since never greater

i error:

conversion failed when converting date and/or time character string

. both values yyyy-mm-dd hh:mm:ss:ms format.

try this:

select t1.column1 table1 t1 inner join table1 t2 on t1.column1 = t2.column2

for where column1 = column2 work, values has in same row. query not assume that.

you do:

select column1 table1  column1 in (select column2 table1)

sample sql fiddle


Comments

Post a Comment

Popular posts from this blog

php - SPIP: From Tag directly to an article -

i work spip , plugin called tagsphere works fine tags in spip. have tag groupe put 1 article tag. when click on tag in tagsphere send me before menu can see articles linked tag. want send me directly article without see tag menu before. here code model of thagsphere: <div id="tagsphere-#env{id_article}"> <ul> <boucle_mot(mots){id_groupe ?}> <li>[<a href="#url_mot">(#titre)</a>]</li> </boucle_mot> </ul> </div> anybody idea? if want skip tag page, have link directly article. <b_article> block prevents display tag if no article linked. <div id="tagsphere-#env{id_article}"> <ul> <boucle_mot(mots){id_groupe ?}> <b_article> <li> <a<boucle_article(articles){...
Read more

jquery - isAjaxRequest always return false -

i got error message 404,'model has not been saved' following code my action controller public function actionextend($id) { $model=$this->loadmodel($id); if(yii::app()->request->isajaxrequest) { $model->todate = date('y-m-d h:i:s a',(strtotime('next month',strtotime(date('y-01-d'))))); if($model->save()) { yii::app()->end(); } else { throw new chttpexception(404,'model has not been saved'); } } } the jquery call $("#buttonextend<?php echo $this->post_row;?>").click(function(e){ $.ajax({ type: "post", url: "<?php echo yii::app()->createurl('post/extend', array('id' => $data['id'])); ?>", }); }); why not ajax call ? thank help i found response, missed } , function ...
Read more

ruby on rails - In a controller spec, how to find a specific tag in the generated view? -

i know integration tests preferred need ran in controller test, i'm testing gem injecting html code in view, xhr can't run in feature spec (if can, please explain me how :) ) so rspec controller tests can assert selector present (with capybara) : response.body.should have_selector('#foobar') has_selector? call all method capybara find selector. what want last child of body , assert id in particular. afaik it's not possible have_selector. what : all('body:first-child').first.id.should == '#foobar' however, capybara dsl, defined (more or less): def all(*args) page.all(*args) end and page empty unless use visit it's integrations specs. how can use capybara all method inside rspec controller test ? i can't test right after googling seems trick def page capybara::node::simple.new(response.body) end source
Read more