mysql - How to retrieve multiple rows with the same ID from two tables with only knowing one value -

-

i sitting @ problem currently. have imported open source geolocation database.

i have 2 tables want access to.

table a:
id   | lat | lon
200 | 48 | 12

table b:
id   | type | value
200 | city   | munich
200 | state | bavaria

want have result this:
id   | lat | lon | typevalue | typevalue
200 | 48 | 12  | munich        | bavaria

is possible in 1 query?

edit: value know "munich"

edit2: i've got far:

select  geodb_coordinates.lat lat, geodb_coordinates.lon lon, geodb_textdata.text_val text  geodb_coordinates, geodb_textdata  geodb_coordinates.loc_id = geodb_textdata.loc_id , geodb_textdata.text_val :location group geodb_textdata.text_val order length(geodb_textdata.text_val) limit 3

try like:

select a.id,a.iat, a.ion, b.value typevalue1, c.value typevalue2  inner join b on a.id=b.id , b.type='city' inner join b c on b.id=c.id , c.type='state'

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