Oracle-L: NEED YOUR OPINION

From: Hamid Alavi <hamid.alavi_at_quovadx.com>
Date: Mon, 24 Jun 2002 15:23:23 -0800
Message-ID: <F001.00485ED1.20020624152323@fatcity.com>

List,

I have a table with the following structure:

CREATE TABLE SERVICE_CODE_MSC (
  MSC_SERVICE_ID NUMBER (4) NOT NULL,   MSC_SERVICE_CODE VARCHAR2 (30) NOT NULL,   CONSTRAINT MSC_PK
  PRIMARY KEY ( MSC_SERVICE_ID, MSC_SERVICE_CODE )     USING INDEX
     TABLESPACE USERS Here is some sample of this table:

service_id     service_code
-------------      ------------------
7		a1000
7		a2000
30		e1230
30		e1234
10		12098
20		130987

When I run the followinh query on this table I get invalid number(ORA-01722), then when I drop tha table and reload the data the query running OK, Here is the query I am running:

select count(*)

	from (select MSC_SERVICE_CODE,MSC_MTF_SERVICE_ID
   	  from MTF_SERVICE_CODE_MSC 
          where 
       	  substr(MSC_SERVICE_CODE, 1, 1) in
('9','8','7','6','5','4','3','2','1','0')) a
		 	where
       		 to_number(a.MSC_SERVICE_CODE) between 7 and 30

Any Idea ? why this hapenning?

Thanks Allot.

Hamid Alavi
Office 818 737-0526
Cell 818 402-1987

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Author: Hamid Alavi
INET: hamid.alavi_at_quovadx.com

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