function - oracle exact fetch returns more than requested -

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I am having trouble creating a function that returns several rows I am trying to use a loop , But I still get the "Received error over request" error. Any help in pointing me in the right direction would be greatly appreciated. Create or Section Volume 2 (id_param NUMBER) Returns varchar as sections_param varchar (40); In the Start sections, select Sections in sections 2 WHERE id = id_param; Return section_im; End loop; End; />

It looks like you give a function that is a The archive gives me an example of returning nested table 

  - Use whatever length is appropriate here. Type section_tableable VARCHAR2 (40); Create or modify jobs section 2 (ID_parm number) Returns section_Table AL_section section_tl; Move Selection to the Start Sections B_L_sections in Table 2 WHERE id = id_param; Returns l_sections; End;   
 In the caller, you want to do something like  
  DECLARE l_sections sections_tbl: = sections2 (

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