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'^=' and '~='?

Hello,
What is the difference between '^='  and '~='?

Thanks,
Duckhye
0
dyang (97)
2/11/2009 10:52:40 PM
comp.soft-sys.sas 142828 articles. 3 followers. Post Follow

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'is not' or '!='
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if str_mo not in ('','.') and str_da not in ('','.') and str_yy not in ('','.') Any shorter ?
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