sql - My query join from more than 2 TABLES return double values using same key reference -

-

i'm trying join more 2 tables using 1 same key reference, works fine when join 2 two tables using left join :

select userprofile.userprofileid, userprofile.name, jobposition.levelname master.eliuserprofile userprofile left join master.elijobposition jobposition on userprofile.userprofileid = jobposition.userprofileid userprofile.userprofileid = '5001'

result :

userprofileid    | name    |  levelname   | -----------------+---------+--------------+ 5001             | dirdple | direktur ple |  5001             | dirdple | direktur ple |

but when want join table it, return double values, using master table reference (which userprofile) :

select userprofile.userprofileid, userprofile.name, jobposition.levelname, useracmmapping.useracmmappingid, useracmmapping.refid  master.eliuserprofile userprofile  left join master.elijobposition jobposition  on userprofile.userprofileid = jobposition.userprofileid  left join transactions.eliuseracmmapping useracmmapping  on userprofile.userprofileid = useracmmapping.userprofileid  userprofile.userprofileid = '5001'

and turned out resulted :

userprofileid    | name    | levelname    | useracmmappingid | refid | -----------------+---------+--------------+------------------+-------+ 5001             | dirdple | direktur ple |        1         |   21  | 5001             | dirdple | direktur ple |        7         |   22  | 5001             | dirdple | direktur ple |       158        |   23  | 5001             | dirdple | direktur ple |        1         |   21  |  5001             | dirdple | direktur ple |        7         |   22  | 5001             | dirdple | direktur ple |       158        |   23  |

is because iam using same key(userprofile.userprofileid)? fyi, 3rd table (useracmmapping) have 3 values userprofileid=5001 , 2nd table (jobposition) have 2 values userprofileid=5001. , table want referenced second table 2 values (userprofileid=5001)..

thank help..

it because joining 2 different tables 1 table same key. joining jobpositions , useracmmapping userprofile. mean there 2 joins on 1 table same field, result doubled.

you should instead join jobpositions userprofile , join useracmmapping jobpositions, this:

select userprofile.userprofileid, userprofile.name, jobposition.levelname, useracmmapping.useracmmappingid, useracmmapping.refid  master.eliuserprofile userprofile  left join master.elijobposition jobposition  on userprofile.userprofileid = jobposition.userprofileid  left join transactions.eliuseracmmapping useracmmapping  on jobposition.userprofileid = useracmmapping.userprofileid  userprofile.userprofileid = '5001'

here 1 join per table.

note: didn't test code, since don't have actual tables, should work.


Comments

Post a Comment

Popular posts from this blog

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5);
Read more

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:
Read more

Python Pig Latin Translator -

-
so have been working on @ codecademy.com while trying learn python. don't know if blind , can't see why won't work or what. here's code won't let me use. function print variable if had typed in , print "empty" if didn't type anything. print "welcome english pig latin translator!" original = raw_input("what's name?") if len(original) > 0 print original else print "empty" if len(original) > 0 else the above lines contains syntax errors. try: if len(original) > 0: else: note added colons, ( : ).
Read more