CURSOR c
IS
SELECT COMPANYID,
GROUPID,
PERIODID,
FN_PPROCESSCURRENT
FROM LIQUIDATIONSDETAILS
WHERE PROCESSID = FN_PPROCESSPREVIOUS
AND (UNCOLLECTED > 0 OR INVOICE = 0)
AND (((GROUPID = vgroupid) AND (vgroupid > -1)) OR (vgroupid = -1))
par exemple :si vgroupid = -1 , alors la dernière condition sera (((GROUPID = -1) AND (-1 > -1)) OR (-1 = -1)) ou ((forever_false AND forever_false) OR (forever_true)) ou (-1 = -1) - tous les enregistrements
à la place, si vgroupid = 123 la dernière condition sera (((GROUPID = 123) AND (123 > -1)) OR (123 = -1)) ou (((GROUPID = 123) and forever_true) OR (forever_false)) ou (GROUPID = 123) - seulement 123 GROUPID
