Regular Expression Query for SQL

Question

Hi,
I am working on SQL server and there is a requirement of separating street name and street number. 
I tried using regexp_substr but not able to do it perfectly.
Here are some sample names which need cleansing
Full name 
street name
street no
Bahnhofplatz 1 / Werkstatt
Bahnhofplatz
1 / Werkstatt
Reinacherstr. 149/151
Reinacherstr.
149/151
Kosuth UCA 7/A
Kosuth UCA
7/A
Route des Jeunes 9 / 6 ème
Route des Jeunes
9 / 6 ème
L'Arcadie / Route de Moudon
L'Arcadie / Route de Moudon
null
Hofstetten 206
Hofstetten
206
Rgds
Amitabh

Answer 1

try this
DECLARE @test TABLE (address VARCHAR(50))
INSERT INTO @test values ('Bahnhofplatz 1 / Werkstatt')
,('Reinacherstr.149 / 151')
,('Kosuth UCA 7 / A')
,('Moudon')
,('L''Arcadie / Route de')
SELECT
Address,
CASE
WHEN patindex('%[0-9]%',address) = 0 then address else substring(address,0,patindex('%[0-9]%',address)) end col1,
CASE WHEN patindex('%[0-9]%',address) >0 then SUBSTRING(address,patindex('%[0-9]%',address),LEN(address)) end col2
from @test
Address col1
col2
Bahnhofplatz 1 / Werkstatt
Bahnhofplatz 1 / Werkstatt
Reinacherstr.149 / 151
Reinacherstr. 149 / 151
Kosuth UCA 7 / A
Kosuth UCA 7 / A
Moudon Moudon
NULL
L'Arcadie / Route de
L'Arcadie / Route de
NULL
--Prashanth