SQL Server: Merge Data Rows in single table in output -


i have sql server table following fields , sample data:

id         name   address   age 23052-pf   peter  timbuktu  25 23052-d1   jane   paris     22 23052-d2   david  london    24 23050-pf   sam    beijing   22 23051-pf   nancy  nyc       26 23051-d1   carson cali      22 23056-pf   grace  la        28 23056-d1   smith  boston    23 23056-d2   mark   adelaide  26 23056-d3   hose   mexico    25 23056-d4   mandy  victoria  24

each id -pf unique in table.

each id -dx related same id -pf.

each id -pf may have 0 or more ids -dx.

the maximum number of -dx rows given -pf 9.

i.e. id 11111-pf can have 11111-d1, 11111-d2, 11111-d3 11111-d9.

output expected above sample data:

id        id (without suffix)  pf_name  pf_address  pf_age  d_name   d_address   d_age 23052-pf  23052                peter    timbuktu    25      jane     paris       22 23052-pf  23052                peter    timbuktu    25      david    london      24 23050-pf  23050                sam      beijing     22      null     null        null 23051-pf  23051                nancy    nyc         26      carson   cali        22 23056-pf  23056                grace    la          28      smith    boston      23 23056-pf  23056                grace    la          28      mark     adelaide    26 23056-pf  23056                grace    la          28      hose     mexico      25 23056-pf  23056                grace    la          28      mandy    victoria    24

i need able join -pf , -dx above.

if -pf has 0 dx rows, d_name, d_address , d_age columns in output should return null.

if -pf has 1 or more dx rows, pf_name, pf_address , pf_age should repeat each row in output , d_name, d_address , d_age should contain values each related dx row.

need use mssql.

query should not use views or create additional tables.

thanks help!

select      pf.id,     pf.idnum,     pf.name pf_name,     pf.address pf_address,     pf.age pf_age,     dx.name d_name,     dx.address d_address,     dx.age d_age   ( select     id, left(id, 5) idnum, name, address, age      mytable      right(id, 3) = '-pf' ) pf  left outer join  ( select     id, left(id, 5) idnum, name, address, age      mytable      right(id, 3) != '-pf' ) dx  on pf.idnum = dx.idnum

sqlfiddle demo: http://sqlfiddle.com/#!6/dfdbb/1


Comments

Post a Comment

Popular posts from this blog

php - cannot display multiple markers in google maps v3 from traceroute result -

i'm newbie in php mysql , google maps v3. have problems in google maps v3. made traceroute web based , map traceroute's result in google maps v3 final project of college education. have try many tutorials didn't work. have tried tutorials in forum nothing worked. problem cannot display multiple markers got location data database. maybe because i'm newbie , not know how do. confuse looping show markers. here code <?php error_reporting(e_all ^ (e_notice)); ini_set('max_execution_time', 360); $enable_log_user = false; global $ip, $host_name, $host_ip; $host = @$_post['host']; $trace = @$_post['trace']; $self = $_server['php_self']; include("phpsqlajax_dbinfo.php"); $connection = mysql_connect ('127.0.0.1', $username, $password); if (!$connection) { die('not connected : ' . mysql_error());} $db_selected = mysql_select_db($database, $connection); if (!$db_selected) { die ('can\'t use db : ...
Read more

c# - DetailsView in ASP.Net - How to add another column on the side/add a control in each row? -

i have detailsview control on page used edit various fields of record, works in respect. i looking way add 1 column (and if works, why not more) right, absolutely read-only, show same fields of record comparison purposes. i aware there no obvious way such thing out of box detailsview . have looked other controls (transposed gridview , recommended formview , listview ), nothing satisfies. have special data binding setup using detailsview , can't out of without losing features. anyone on how "hack in" additional columns (for display only) on detailsview ? the solution have now, use second detailsview , visible set false in aspx. in code, make sure databind hidden detailsview hosts data third column first, initial detailsview named itemdetails . and in item created event, pass third column html rendering of hidden controls (in last code block) : protected void itemdetails_itemcreated(object sender, eventargs e) { if (dataite...
Read more

javascript - firefox memory leak -

i have following script (i use raphaeljs also) draws circle, waits 1 second, draws circle again, etc (you can copy paste - functional, need include raphael raphaeljs.com): <div id="holder"> </div> <script src="raphael.js" type="text/javascript"></script> <script> var paper = raphael(10, 50, 320, 200); var rad = math.pi / 180; var finangle = 0; function sector(cx, cy, r, startangle, endangle, params) { var x1 = cx + r * math.cos(-startangle * rad), x2 = cx + r * math.cos(-endangle * rad), y1 = cy + r * math.sin(-startangle * rad), y2 = cy + r * math.sin(-endangle * rad); return ["m", cx, cy, "l", x1, y1, "a", r, r, 0, +(endangle - startangle > 180), 0, x2, y2]; } var path = sector(100,100,50,0,180); var arc = paper.path(path); function draw() { path = sector(100,100,50,0,finangle); ...
Read more