format accontno

how can i format account no

select acctno from employee


display like

oracle database
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Ryan ChongCommented:
select acctno, substr(acctno,1,2)||'-'||substr(acctno,3,3)||'-'||substr(acctno,6,4) NewacctNo
from employee;

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Ryan ChongCommented:
i assume you mean "bb-020-1938", NOT "bb-010-1938"

bb0201938 >> bb-020-1938
Will the acctno always be in the same format (e.g. in your example 2 alpha characters followed by 7 digits)?
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chalie001Author Commented:
it can be both

slightwv (䄆 Netminder) Commented:
Did you try the substr in the first post?

If that didn't work, please explain why.
chalie001Author Commented:
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