Find a specific substring using Transact-SQL

Question

I need to pull a specific substring from a string of the form:

foo=abc;bar=def;baz=ghi

For example, how would I get the value of \"bar\" from t

Answer 1

this is assuming that the string will have the same string format just substitute the column name for the 'foo=abc;bar=def;baz=ghi'

select substring('foo=abc;bar=def;baz=ghi',patindex('%bar=%','foo=abc;bar=def;baz=ghi')+4, len('foo=abc;bar=def;baz=ghi')-patindex('%;baz=%','foo=abc;bar=def;baz=ghi')-4)