how to get single row using left join in asp.net

Question

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Hi, i want to get image path from table2 by using left join operation in asp.net .but didn't get it..so please help me..

here my query is:

SQL

SELECT n.newsid,n.state,n.district,n.region,n.views,n.currentplace,n.newstitle,n.description,n.poston,n.postby,ni.imagepath,ni.newsid 
FROM  tbl_userpost_news n 
LEFT JOIN tbl_userpost_newsimages ni ON n.newsid = ni.newsid 
AND (SELECT TOP 1 * FROM ni WHERE n.newsid=ni.newsid)  
Order By n.poston desc

please send current code for that.......thank you.

Posted 28-Aug-15 23:03pm

Member 10575434

Updated 28-Aug-15 23:13pm

Suvendu Shekhar Giri

v2

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3 solutions

Solution 3

Your AND condition is being applied to the JOIN...ON, so it doesn't match properly.
Move the TOP 1 bit:

SQL

SELECT TOP 1  n.newsid,n.state,n.district,n.region,n.views,n.currentplace,n.newstitle,n.description,n.poston,n.postby,ni.imagepath,ni.newsid 
FROM  tbl_userpost_news n 
LEFT JOIN tbl_userpost_newsimages ni ON n.newsid = ni.newsid 
ORDER BY n.poston desc

And it shoudl work.

Posted 28-Aug-15 23:25pm

OriginalGriff

Comments

Member 10575434 30-Aug-15 3:45am

it is right, but i want top1 from images table..any way thank you for supporting me..

Solution 1

check Top 1 with a left join[^]

Posted 28-Aug-15 23:24pm

DamithSL

Updated 28-Aug-15 23:26pm

v2

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Suvendu Shekhar Giri · Accepted Answer · 2015-08-28T23:24:00

If you want only the image column from the second table then you can use subquery to that.
Check this query-

SQL

SELECT n.newsid, n.state, n.district, n.region, n.views, n.currentplace, n.newstitle, n.description, n.poston, n.postby, (SELECT TOP 1 imagepath FROM tbl_userpost_newsimages ni WHERE n.newsid=ni.newsid) AS imagepath
FROM  tbl_userpost_news n
Order By n.poston desc

Note: I have removed ni.newsid from select list as n.newsid is already there and suppose to return the same value.

Hope, it helps :)