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Missing numbers

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Hello list,

I need to track down the missing check numbers in a serie, table contains a column for check numbers and series like this:

dbalm=# select doc_numero,doc_ckseriesfk from bdocs where doc_cta=1
dbalm-# and doc_tipo='CHE' order by doc_numero;
 doc_numero | doc_ckseriesfk
------------+----------------
 19200      |         856938
 19201      |         856938
 19215      |         856938
 19216      |         856938
 19219      |         856938

Missing numbers are:
from 19202 to 19214 and 19217,19218


Does anyone knows a way to get that done in SQL or plpgsql, thanks in advance


--
Sinceramente,
Josué Maldonado.

... "De hecho el paso de compilación a objeto suele atravesar una fase intermedia en que se genera un fichero en lenguaje ensamblador y se invoca al programa ensamblador del sistema." -- Tutorial de C

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