Expression

Hi all

I have data as below:

SQL > DATA

2 (SELECT 'yyyy.uuuu' AS col FROM DUAL

3 UNION

4. SELECT 'uuu.hhhh' FROM DUAL

5 UNION

6. SELECT 'xxxxx' FROM DUAL

7 UNION

8. SELECT 'yyyy.ooooo' FROM DUAL

9     )

10. Select collar

11 DATA;

COL

----------

UUU.HHHH

XXXXX

yyyy.OOOOO

yyyy.uuuu

Desired output

COL

----------

mmm.HHHH

.OOOOO

.uuuu

I tried to:

WITH the data AS

(SELECT 'yyyy.uuuu' AS col FROM DUAL

UNION

SELECT 'uuu.hhhh' FROM DUAL

UNION

SELECT 'xxxxx' FROM DUAL

UNION

SELECT 'yyyy.ooooo' FROM DUAL

)

Select REGEXP_SUBSTR (col, ' [^.] +', 1, 2) in the neck

DATA;

Thanks in advance

BANNER

----------------------------------------------------------------

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - production


WITH dataset
     AS (SELECT 'yyyy.uuuu' AS col FROM DUAL
         UNION
         SELECT 'uuu.hhhh' FROM DUAL
         UNION
         SELECT 'xxxxx' FROM DUAL
         UNION
         SELECT 'yyyy.ooooo' FROM DUAL)
SELECT substr(col,instr(col,'.'))
  FROM dataset
  where instr(col,'.')>0

See you soon,.

Manik.

Tags: Database

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