Re: Date operations

<meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">


    On 03/01/2011 08:14 AM, Chetan Suttraway wrote:
    <blockquote
      cite="mid:AANLkTimrq39kZzCk8iNVOEbELWjWYAx11e1kfCkC_oAy@mail.gmail.com"
      type="cite">

        <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
          0.8ex; border-left: 1px solid rgb(204, 204, 204);
          padding-left: 1ex;">

          What I would like, if possible, is something on the line of
          "SELECT
          DISTINCT ON file ..... WHERE date NOT GREATER THAN somedate
          [ORDER BY
          date desc]" but cannot seem to find a way to do it.

          I would greatly appreciate any ideas on this subject, kind
          regards to all,
          Barbara F.



          Would it be possible to post the setup in terms of sql
          queries?



    Hello, thanks for your answer.
    The view in question has this definition:
    --
    CREATE VIEW olx_gst_exp AS
        SELECT e.exp_name, e.exp_number, g.gest_fecha, g.gest_tipo FROM
    olx_expedient e, olx_gestiones g WHERE (e.exp_id = g.olx_exp_id)
    ORDER BY e.exp_name;

    whereas the corresponding tables have this setup:

    openlex=# \d olx_expedient

                                            
Table
    "public.olx_expedient"
         Column           
|          
Type                        
    |           
Modifiers                                

----------------+--------------------------+--------------------------------------------------------------------------
     exp_number        |
text                   
              | not 
    null
     exp_ext_id           |
integer                              
| 
     crt_id                   |
integer                              
|

     exp_sec_id           |
integer                      
      |  
     exp_start             | timestamp with time zone | default
now()
     exp_end              | timestamp with time
zone|  
     exp_user_stamp | character varying(64)        | default
    "current_user"()
     exp_time_stamp | timestamp with time zone | default now()
     exp_id                 |
integer               
             | 
    not null default
    nextval(('"olx_expedient_exp_id_seq"'::text)::regclass)
     exp_name          | character varying(64)        |
     exp_nick             |
text                         
        |  
    activo                 |
boolean              
             | 
    default true
    ....

    and

    openlex=# \d olx_gestiones

                                      
Table"public.olx_gestiones" 
         Column          
|          
Type          

|                         
Modifiers 

                         

----------------+--------------------------+--------------------------------------------------------------
     gest_id                |
integer                 | default 
    nextval(('"olx_gestiones_gest_id"'::text)::regclass)
     gest_tipo             |
text       
             |  
     gest_fecha          | date      
              | default 
    ('now'::text)::date
     olx_exp_id           |
integer                 | not null 
     plazo                   |
interval                |  
     fechas_cl            |
date                    
| 
     vencim               |
integer                 |  
     timestamp         | timestamp with time zone | default now()
     fojas                   |
integer                 |  
     exp_user_stamp |
text                    
|default 
    "current_user"()


    I hope this is clear enough, thanks again for your response.
    Barbara F.
    <blockquote
      cite="mid:AANLkTimrq39kZzCk8iNVOEbELWjWYAx11e1kfCkC_oAy@mail.gmail.com"
      type="cite">

         


      Chetan Sutrave
      http://www.enterprisedb.com




    --
Dra. Bárbara M. Figueirido
25 de Mayo 1331
8400 S.C. de Bariloche - RIO NEGRO
Argentina
Tel.-Fax: +54 2944 456252
                   15682745