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  2. RPG400-L
  3. June 2013

Re: READE with partial key

Here is where I am having trouble. Lets say that the file is uniquely keyed by Item and SKU number. Lets say there are logicals defined by Item & color, Item & size, and Item & date.

If my program uses the logical of Item & Date and I SETLL on item alone, will I always get the lowest Item & Date record?

On 6/19/2013 2:44 PM, Charles Wilt wrote:
No SETLL with ITEM = 1, would position the cursor before record 1.

A READ or READE (with item = 1) would return the first record.

Charles


On Wed, Jun 19, 2013 at 3:25 PM, Briggs, Trevor (TBriggs2) <
TBriggs2@xxxxxxxxxxx> wrote:

I'm sorry, but that logic just doesn't hold. Given the following
records:

Item Date
1 01/01/2013
1 12/31/2013
2 02/01/2013

If you SETLL using only Item with a value of '1', if will set the cursor
between the second and third records and doing a READE with the same key
will read the 3rd record. It matters not a whit that the date key of
record 2 is higher than that of record 3.




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