sql - A connect by query on all children -


is there way have connect prior... start with statement in oracle start first "child" in table , run query remaining children well? know how use statement 1 child , ancestry, need code run lots of different children in table.

let's suppose have code returns component , component's color table of components , component's parent , classified "sample" , color component's parent id id of parent component.

this schema:

components table: component        component_id      component_parent_id      component_label  component_color table: component      component_color 

note: example code, not 1 using, if silly errors, sorry.

select component,   components  inner join component_color on (components.component =  component_color.component)  component_label = 'sample' connect prior  component_header.component_parent_id = component_header.component_id   start component.component_id = '2000';  

table component has lot of different components , want query return not component id 2000 , "sample" parent, children in table "components".

i can see how can done loop, cannot find type of loop can use oracle. sorry, starting.

avoid using where , order by clauses in hierachical queries, because run after hierarchical processing. here think should use start component_label = 'sample'.

 select level, components.component_id, components.component_label, component_color.component_color    compenents join component_color on components.component = component_color.component   start components.component_label = 'sample' connect prior components.component_id = components.component_parent_id 

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