Обсуждение: pls reply ASAP

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pls reply ASAP

От
"Chethana, Rao (IE10)"
Дата:

Hello!

 

Kindly go through the following ,

 

 

I wanted to know whether, the command line arguments(function arguments) ------  $1 $2 $3   --  can be used  as in the following , like, ----

 

 

CREATE TYPE TT AS(something,something,…………………………………………………………etc………………);

CREATE OR REPLACE FUNCTION f1(varchar,varchar,varchar,varchar) RETURNS …………………..(something)………….

 

BEGIN

 SELECT a1,a2,a3,a4,a5,a6

 FROM (SELECT * FROM T1, T2……WHERE …………etc…   Flag = 0   $1 $2 $3 $4)

 ORDER BY ……………………                                                                   

………………………….

RETURN NEXT ………;

  END LOOP;

  RETURN;

END;

' LANGUAGE 'plpgsql';

 

NOTE :    The values for  $1 $2 $3 $4  will be passed when the function is invoked(called)  from the command prompt.

 

I  tried implementing the above, but  this type of usage is not supported , how should use it? 

 

 I am converting  from (sprintf, “SELECT query stmts (which uses   %s %s %s %s  …… )        to functions.

 

 

Any help will be deeply appreciated.  Thank you.

 

 

Kind regards,

      Chethana.

 

 

 

Вложения

Re: pls reply ASAP

От
"Rajesh Kumar Mallah"
Дата:


On 4/9/06, Chethana, Rao (IE10) <Chethana.Rao@honeywell.com> wrote:
>
>                
>  
>
> Hello!  
>
>    
>
> Kindly go through the following ,  
>
>    
>
>    
>
> I wanted to know whether, the command line arguments(function arguments) ------  $1 $2 $3   --  can be used  as in the following , like, ----  
>
>    
>
>    
>
> CREATE TYPE TT AS(something,something,…………………………………………………………etc………………);  
>
> CREATE OR REPLACE FUNCTION f1(varchar,varchar,varchar,varchar) RETURNS …………………..(something)………….  
>

the overall idea expressed is doable.
following are comments

1. you have to put RETURNS setof TT (if you plan to return TT) since you used RETURN NEXT
2.  you have to use SELECT INTO rec  in the function where rec is rowtype TT

hope it helps

------- non technical comments ------------------------------------------------------
3. its not a performance question , it shud have been marked more appropriately to pgsql-sql  i think.
4. its not a good etiquette to address email to someone and mark Cc to a list.

kind regds
mallah.

>    
>
> BEGIN  
>
>  SELECT a1,a2,a3,a4,a5,a6  
>
>  FROM (SELECT * FROM T1, T2……WHERE …………etc…   Flag = 0   $1 $2 $3 $4)  
>
>  ORDER BY ……………………                                                                      
>
> ………………………….  
>
> RETURN NEXT ………;  
>
>   END LOOP;  
>
>   RETURN;  
>
> END;  
>
> ' LANGUAGE 'plpgsql';  
>
>    
>
> NOTE :    The values for  $1 $2 $3 $4  will be passed when the function is invoked(called)  from the command prompt.  
>
>    
>
> I  tried implementing the above, but  this type of usage is not supported , how should use it?    
>
>    
>
>  I am converting  from (sprintf, "SELECT query stmts (which uses   %s %s %s %s  …… )        to functions.  
>
>    
>
>    
>
> Any help will be deeply appreciated.  Thank you.  
>
>    
>
>    
>
> Kind regards,  
>
>       Chethana.  
>
>    
>
>    
>
>