sql - Take substring out of string -

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this question has answer here:

i have key string like

empl:9998 earn code:7704 seq:1

i need take employee number 9998 out of string.
employee number start @ position 6 , end before second e.
have been played around string function no success. use ms sql.

the following statement this:

select substring(empno, 6,                  charindex('e', empno, 6) - 6) (select 'empl:9998 earn code:7704 seq:1' empno) t;

you might want -7 if don't want space in "number".


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