To find out " dot" using substr in oracle

Question

Hi ,
I would like to find "Dot" between Schemaname and table name using substring in Oracle . I am using oracle 9i.I can't use Regexp in Oracle 9i
Schemaname .tablename
Table name can be any no of characters
Schema name also can be any no of characters
Regards,
User

Answer 1

Are you looking for this?
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
Elapsed: 00:00:00.01
satyaki>
satyaki>
satyaki>
satyaki>declare
  2    str  varchar2(30);
  3    ctr  varchar2(30);
  4  begin
  5    str := 'SCOTT.EMP';
  6   
  7    ctr := 'SCOTT';
  8   
  9    if ctr = substr(str,1,instr(str,'.')) then
10        dbms_output.put_line('User Matches....');
11    else
12      dbms_output.put_line('User Does Not Matches....');
13    end if;
14  end;
15  /
User Does Not Matches....
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.01
satyaki>
satyaki>declare
  2    str  varchar2(30);
  3    ctr  varchar2(30);
  4  begin
  5    str := 'SCOTT.EMP';
  6   
  7    ctr := 'SCOTT';
  8   
  9    if ctr = substr(str,1,instr(str,'.')-1) then
10        dbms_output.put_line('User Matches....');
11    else
12      dbms_output.put_line('User Does Not Matches....');
13    end if;
14  end;
15  /
User Matches....
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.00
satyaki>Regards.
Satyaki De.