parent-child

问题 Table1: Child Parent a Bob Chris 2 Chris Kate 1 Shane Lana 3 Nala Bob 4 Table2: b Talent 1 'something' 2 'nothing' 3 'something' 4 'nothing' SELECT Child FROM Table1 INNER JOIN Table2 ON (Table1.a = Table2.b) WHERE Table2.Talent = 'something' connect by prior Table1.Child = Table1.Parent This code returns rows of parents Chris If the "Where" clause was not included, the code would return: Bob Chris Kate Chris Kate Shane Lana etc What I want to return is the following in a row, not in columns:

问题 I am attempting to learn the functionality of parents, children and pipes in perl. My goal is to create a single pipe (not bidirectional) that reads from the command line, and prints it through a pipe. Referencing the pids many many times. The code so far: #!/usr/bin/perl -w use warnings; use strict; pipe(READPIPE, WRITEPIPE); WRITEPIPE->autoflush(1); STDOUT->autoflush(1); my $parentpid = $$; my $childpid = fork() // die "Fork Failed $!\n"; # This is the parent if ($childpid) { &parent (

问题 I am trying to create a drop-down menu in which the children are center-aligned compared to the parent. I have already tried setting margin: auto; or setting left: -50%; right: -50% along with other solutions I found online, but nothing seems to work for me. How can I achieve that? .header { /*background-image: url("../images/top_menu.png");*/ width: 100%; background-repeat: no-repeat; background-position: left top; background-attachment: fixed; position: fixed; top: 0; background-origin:

问题 I have the following entities public class Vehicle { public virtual string InternalNumber { get; set; } public virtual IList<VehicleDriverHistory> DriverHistory { get; set; } } public class VehicleDriverHistory : HistoryEntity { public virtual Vehicle Vehicle { get; set; } public virtual DriverPerson Driver { get; set; } public virtual DateTime Date { get; set; } } Now I need to select every Vehicle and, if present, the newest VehicleDriverHistory-Entry according to "Date". But I'm kinda

问题 I am using treetable.js. as procedure i saved the child id and parent id. insert data is successfully inserted. but return data may show in table only or get the grouping error. then i use the IGrouping Object get the Convertion error. Please tell me the child parent loop structure for the below. In Model: public string name {get;set;} public int childId {get;set;} public int ParentId {get;set;} In Controller: var list = db.table.groupby(s=>s.parentId).toList(); return view(list); In view:

问题 I have a winform MAINFORM , and need to open child forms in this form as shown in the image. The black portion is a panel & would contain a no. of LinkLabels and Treeview with multiple nodes. In the rest of the portion i want to display the child forms when the linklabels on the panel would be clicked. The child forms should exactly fit into the remaining space i.e. space excluding the space covered by the panel. Please help me out with the code, how to fit the new form in the left space.

问题 Actually my problem is that I already had a functional Child theme with a functions.php and many others filesname.php and also a style.css which work properly, but when I try to add an other stylesheet like for instance modules.min.css The theme is only reading it in the parent folder so I can't change stylesheets in my website and this is annoying Some data: File in the parent folder I want to override: \wp-content\themes\startit\assets\css\modules.min.css File in the child folder I want to

问题 Is there a way in Java to get an instance of my object's parent class from that object? ex. public class Foo extends Bar { public Bar getBar(){ // code to return an instance of Bar whose members have the same state as Foo's } } 回答1: There's no built-in way to do this. You can certainly write a method that will take a Foo and create a Bar that's been initialized with the relevant properties. public Bar getBar() { Bar bar = new Bar(); bar.setPropOne(this.getPropOne()); bar.setPropTwo(this

问题 Is there a better (quicker, shorter or neater) way to access a child sprite (object) 3 layers or more deep? If the children have all been given names and you know the names. Is there a better way to do it than the code I made below? var mySprite:DisplayObjectContainer = layerASprite.getChildByName(" layerA ") as DisplayObjectContainer; mySprite = mySprite.getChildByName(" layerB ") as DisplayObjectContainer; mySprite.getChildByName(" layerC ").y = 200; 回答1: If they are unique you can create a

问题 Hi there I'm trying to code a blog theme which will have tags etc so wat I'd like is for certain classes of mostly parent divs to change when tagged with something (example below). classes are spans (using bootstrap) html <div id="a" class="span6"> </div> <div id="b" class="span6"> <a class="taglink">[tag]</a> </div> What I'd like is for div a and b's classes to change to say span12, and only them and no other parent/adjacent/child etc divs. This is so that when I tag the post with certain