Dear MI users,
I thank Mr.Perry Chris,Mr.Mikhai Soloviev ,Mr. Jo Ellen for their reply to
my question.
My question was,how to get overlapped region between two layers in one
single query..
>From the reply,i wrote a code like the one following:
Select * from A
set target on
Select * from B,A where B.obj intersects A.obj into temp
objects intersect into target data
But,let us assume "A" contains n records and "temp" contains m records,then
erase
operation will be processed for m*n times and so it might hang for more
number of records.I did this trial for 234*64 records and it tooks two
minutes for this process in pentium II.I also have to take care of
attribute data.
Since the record number is very less when compared to the practical
situation..Is there any way ,i mean any shortcut way,to avoid this lengthy
process...
Please help me in this regard.
Thanks in advance,
deva.
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