sql - How to turn a order items into a column list of products -

-

i trying list of products order listed columns. tried pivot table dont want column names of product static names product 1, product 2 , row have product sku , quantity. same products should go in same column. sku1 in product1 column etc

example. order , orderitems table. output like

header:

orderid,product1, quantity1,product2 quantity2,product3,quantity3

rows:

1 , sku1,3, sku2,4, sku3,5

2 , sku1,2, sku2,5, sku3,1

i have created sql fiddle: http://sqlfiddle.com/#!3/d993a/4/0 example of structure , select.

my last thought table variable revant columns , insert still cant see best option.

thanks in advance..... 

select  b.quantity,  case when b.productname='product 1' b.sku end 'product1', case when b.productname='product 2' b.sku end 'product2', case when b.productname='product 3' b.sku end 'product3', case when b.productname='product 4' b.sku end 'product4', case when b.productname='product 5' b.sku end 'product5', case when b.productname='product 6' b.sku end 'product6'  order1 join orderitems b on (a.orderid=b.orderid) a.orderid= b.orderid ;

output:

+----------+----------+----------+----------+----------+----------+----------+ | quantity | product1 | product2 | product3 | product4 | product5 | product6 | +----------+----------+----------+----------+----------+----------+----------+ |        2 | sku1     | null     | null     | null     | null     | null     | |        4 | null     | sku2     | null     | null     | null     | null     | |        5 | null     | null     | sku3     | null     | null     | null     | |        2 | null     | null     | null     | sku4     | null     | null     | |        1 | null     | null     | null     | null     | sku5     | null     | |        2 | sku1     | null     | null     | null     | null     | null     | |        4 | null     | sku2     | null     | null     | null     | null     | |        5 | null     | null     | sku3     | null     | null     | null     | |        2 | null     | null     | null     | sku4     | null     | null     | |        1 | null     | null     | null     | null     | sku5     | null     | |        1 | null     | null     | null     | null     | null     | sku6     | +----------+----------+----------+----------+----------+----------+----------+

Comments

Post a Comment

Popular posts from this blog

Fail to load namespace Spring Security http://www.springframework.org/security/tags -

-
i have problem namespace of spring security on xhtml page. don't understand why can't load uri, , have following issue: whitelabel error page application has no explicit mapping /error, seeing fallback. tue jul 21 16:58:12 utc 2015 there unexpected error (type=not found, status=404). please need help! possible uri has been changed? best regards you using incorrect namespace url. correct url http://www.springframework.org/schema/security the error page seeing spring source website since not recognize url. try visiting http://www.springsource.org/security/tags in browser update : spring security tags used in jsp page correct tag lib declaration is: <%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
Read more

sql - MySQL query optimization using coalesce -

-
can explain me why second query faster first? (first 1 takes around 40 seconds, second 1 less 0.1) select releases.feature_code, releases.platform_id, version, release_date, general_available, uri, filesize, display_name, feature_name.full_name, if ((select exists(select 1 release_exceptions releases.feature_code = release_exceptions.feature_code , releases.platform_id = release_exceptions.platform_id , releases.version = release_exceptions.version) = 1), 1, 0) release_exceptions releases left outer join platform using(platform_id) left outer join feature_name using(feature_code) order version desc; ~~~ query 2 ------------------ ~~~ select feature_code, version, release_date, general_available, platform_id, uri, filesize, display_name, feature_name.full_name, coalesce(release_exceptions, 0) release_exceptions mus.releases left outer join ( select distinct feature_code, version, platform_id, 1 release_exceptions mus.release_exceptions ) release_exceptions using ...
Read more

unity3d - Unity local avoidance in user created world -

-
i'm using unity3d networked multiplayer online game have large complex 3d terrain scene forest, trees, cliff, hills, mountains, bounders, etc. players can build structures sort of minecraft, , put them anywhere in scene, or move them around anytime. aside human controlled players, there automated ai players , objects animals roaming around scene following path. the problem how make these automated ai players , animals, able navigate around static , dynamic player created structures, because path follow can blocked player created structures, or other players , other ai objects, cliffs etc. have find away around them or on track if tumble down off high cliff example. so made navmesh , used navagents, takes care of static, non moving objects, how make ai players navigate around each other , dynamic structures created players can number in hundreds? i thought of adding navmeshobstacle everything, result in being attached hundreds of objects since user created structures b...
Read more