Hi. (my first post - I did several queries and didn't get any hits on my problem.)

I have a requirement to parse a string with resursive statements. It happens to be SQL, but not sure that matters directly. I need to turn each field into field format \"%s|\". That is convert: 

"select A, B, C,
  (select D, E, F,
    (select G, H from AA where ID = Z) from BB where ID2 = X),
      I, J
        from CC;"

[download]
into 
"select A format \"%s|\", B format \"%s|\", C format \"%s|\",
  (select D format \"%s|\", E format \"%s|\", F format \"%s|\",
    (select G format \"%s|\", H format \"%s|\" from AA where ID = Z) f
+rom BB where ID2 = X),
      I format \"%s|\", J format \"%s|\"
        from CC;"

[download]
You can see that when I find a second "select" I have to go down a level to find each of the fields D thru F, then again for G & H. Then pop back out to finish I & J. And I'm not too sure how to go about it.

Alf

In reply to Recursive parse - by real.aussie

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