len() and length()
I have two instances on two machines. I found one of them support both len() and length() while another one only recognize length(). Both instances are 184.108.40.206.0.
Any one knows how this happened? I can't see any difference between two instances.
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- 4 Comments
- Some one could have created a function 'len' on one of your servers.
SQL> select len('123'),length('123') from dual;
select len('123'),length('123') from dual *ERROR at line 1:ORA-00904: "LEN": invalid identifier SQL> create function len(p_input_in varchar2) 2 return number as 3 v_number number;
4 begin 5 select length(p_input_in) into v_number 6 from dual;
7 return v_number;
9 / Function created. SQL> select len('123'), length('123') from dual;
LEN('123') LENGTH('123')-- -- 3 3#1; Fri, 22 Feb 2008 16:25:00 GMT
- I just checked, no such function exists on that instance. Actually, one instance was just imported from another one.
Any other factors can make it happen?
Thanks#2; Fri, 22 Feb 2008 16:26:00 GMT
- Could you run the following query and post the output?
select * from dba_objectswhere object_name = 'LEN';#3; Fri, 22 Feb 2008 16:27:00 GMT
- thank you for the help, I found out the issue, another instance is using a Synonym pointing to a len() function under a different schema.
Sorry for any confusion.#4; Fri, 22 Feb 2008 16:28:00 GMT