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  2. RPG400-L
  3. September 2016

Re: SQL Where In

On Thu, Sep 1, 2016 at 3:04 AM, Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx> wrote:
If performance is not an issue (i.e. for small tables) you may use the
following trick:
1. Build a string containing all Element values (in my example I added a
leading blank and a trailing comma, just for being able to locate the value
correctly).
2. In the Where condition I use a like predicate, for scanning my string and
locating the column status within this string.

This is basically equivalent to using LOCATE/POSITION/POSSTR, which
was discussed earlier.

The potential advantage of those functions over LIKE is that you might
be able to skip step 1, if the array values are already in a
fixed-element-width string. (For example, if you have a data structure
that maps the memory used by the array to a single, long string.)

John Y.

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