sql - Flattening a hierarchial data set in Oracle -

-

i have set of data shown below

treename date       level parentnode    childnode grn_kk   9/1/2012   1     null          allaccount grn_kk   9/1/2012   2     allaccount     52000 grn_kk   9/1/2012   2     allaccount     59900 grn_kk   9/1/2012   3     52000       54311 grn_kk   9/1/2012   3     52000       50100 grn_kk   9/1/2012   3     52000       54345 grn_kk   9/1/2012   3     52000       54346 grn_kk   9/1/2012   3     52000       54347 grn_kk   9/1/2012   4     50100       50151

i need flatten data below:

grn_kk         9/2/2012     allaccount           52000 grn_kk         9/2/2012     allaccount           52000      54311 grn_kk         9/2/2012     allaccount           52000      50100 grn_kk         9/2/2012     allaccount           52000      50100     50151 grn_kk         9/2/2012     allaccount           59900

and on.

i can have 30 parent child relationship

i used connect , sys_connect_by_path follows

    select a.tree_name,a.effdt,a.parent_node_name,a.tree_node, sys_connect_by_path(a.tree_node, '/') pstreenode a.tree_name = 'mda_grn_kk' , a.effdt = (   select max(a1.effdt)    pstreenode a1   a.setid = a1.setid     , a.setcntrlvalue = a1.setcntrlvalue     , a.tree_name = a1.tree_name     , a.tree_node_num = a1.tree_node_num     , a.tree_node = a1.tree_node     , a.tree_branch = a1.tree_branch     , a1.effdt <= sysdate) connect nocycle prior  a.tree_node = a.parent_node_name;

the result set large. there other trees in table , don't think looks @ specified tree_name. diving me sorts of combinations.

can please me this

thanks in advance

if want see tree 'mda_grn_kk' that's "root" of hierarchy. specify root using start with clause. put right before connect by:

... beginning of query ... start a.tree_name = 'mda_grn_kk' connect nocycle prior  a.tree_node = a.parent_node_name

Comments

Post a Comment

Popular posts from this blog

java - Jmockit String final length method mocking Issue -

-
using jmockit 1.2 jar, trying mock string's length method getting unexpected invocation exception: failed: test java.lang.illegalstateexception: missing invocation mocked type @ point; please make sure such invocations appear after declaration of suitable mock field or parameter @ stringdemo.testa$1.<init>(testa.java:17) @ stringdemo.testa.test(testa.java:13) i using testng: @test public void test() throws exception { new expectations() { @mocked("length") string astring; { astring.length(); result = 2; } }; system.out.println(a.showa("test")); } } actual class a: public class { public static int showa(string str){ int a= str.length(); return a; } } this wrong way of recording expected results. shouldn't mock , record string's length() method, record showa() instead. here solution @suppresswarnings("unused...
Read more

What is the difference between data design and data model(ERD) -

-
i have google question , find answer in day. know, data design many many table have list column,and mark pk , fk. why er-diagram have find this? data design process of designing database. main output of data design detailed logical data model of database. some people data design includes of needed logical , physical design choices , physical storage parameters needed generate design in data definition language. technically, database analysis, database analysts (dbas) trained do. while person can both data design , database analysis, these 2 different tasks. data design models data. database analysis takes model , applies 1 or more database engines (relational, hierarchical, nosql). a logical data model 1 of main outputs of data design. data model represented entity relationship diagram, or er diagram.
Read more

ios - Can NSManagedObject conform to NSCoding -

-
i need transfer single object across device. right converting nsmanagedobject dictionary , archiving , sending nsdata. upon receiving unarchiving it. transfer nsmanagedobject archiving , unarchiving instead of creating intermediate data object. @interface test : nsmanagedobject<nscoding> @property (nonatomic, retain) nsstring * title; @end @implementation test @dynamic title; - (id)initwithcoder:(nscoder *)coder { self = [super init]; if (self) { self.title = [coder decodeobjectforkey:@"title"]; //<crash } return self; } - (void)encodewithcoder:(nscoder *)coder { [coder encodeobject:self.title forkey:@"title"]; } @end nsdata *archivedobjects = [nskeyedarchiver archiveddatawithrootobject:testobj]; nsdata *objectsdata = archivedobjects; if ([objectsdata length] > 0) { nsarray *objects = [nskeyedunarchiver unarchiveobjectwithdata:objectsdata]; } the problem above code is. crashes @ self.title in initwithcoder sa...
Read more