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Change ip adress in a string

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Hello everybody,

we got data from a dns server that looks like:

some colums.... |121.12.250.2.somestring......|

The ip adress should look like 2.250.12.121:

We could use charindex, substring and len to cut the 4 parts of the ip
and rebuild it in the right format.
Starts with
SELECT
CHARINDEX('.',mycolumn)
,LEFT(mycolumn, CHARINDEX('.',mycolumn) - 1) as part_four_of_ip
,CHARINDEX('.', SUBSTRING(mycolumn,CHARINDEX('.',mycolumn) - 1),len(mycolumn)
as position_of_second_dot
........ and so on.....

This will cause an awful long code.

Any ideas how to shorten that code?

best regards

Michael

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