On 7/16/2014 1:40 PM, Sytze de Boer wrote:
After yesterday, with heart in mouth, I ask the following
I have a table with large amount of data
It contains Master contract, sub contract, sub-sub contract
pcode N(5)
pcode2 N(7)
pcode3 N(9)
Example
3770
3770, 377001
3770, 377001, 37700101
3770, 377001, 37700102
3770, 377002
3770, 377002, 37700201
3770, 377002, 37700202
When I do a select statement, I seem to get them in correct order with
select * from contract order by pcode,pcode2,pcode3 etc
But if I want to create an index, I lose my head.
Any pointers?
how about index on str(pcode, 5, 0) + str(pcode2, 7, 0) + str(pcode3, 9,
0) [to myindex.idx or tag mytag]
HTH
--
Jeff
Jeff Johnson
j...@san-dc.com
SanDC, Inc.
623-582-0323
Fax 623-869-0675
http://www.san-dc.com
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