Open with the cursor

Greetings-

I have a block of code on a report in the grid control, and it works well.
What bothers me is that I need to specify the parameter in the
Open the cursor so many times. I know that there is an easier way.
Here is a simple example of this article:


T1d: = sysdate - 90

my_str: = ' select * from my_table where collection_timestamp
between: 1 and (: 1 + 1)';

my_cursor cursor open for my_str using t1d, t1d.

However - in my code I use this about 24 times. Any help would be appreciated.

Thank you

Brian

Rate the original question when you asked it... However, it is possible to 'normalise' your bind variables in the query using subquery factoring for example

declare
  dt1    date;
  my_str varchar2(32767);
begin
  dt1 := sysdate - 90;
  my_str := 'with t as (select :1 as dt from dual)
             select *
             from my_table, t
             where collection_timestamp between t.dt and (t.dt + 1)';

  open cursor my_cursor for my_str using dt1;
  ..

If you are linking to the weighted subquery just inside, and then this subquery is used throughout the application to provide the values.

Tags: Database

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