Question

I need to reject the rows from an external table which starts (first column of every row) with some special characters (eg. ~ \ etc) in a CSV file.

For that I have used LOAD WHEN clause in the ACCESS PARAMETERS clause. I have been using the following statement in the Access parameters clause:

load when (1:1) != '~'

But it throws an error stating “INVALID CHARACTER”

If I try to use the below statement,

load when (empname != '~empname')

It throws:

ERROR at line 1:
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-06512: at "SYSTEM.EMP_PROCEDURE", line 101
ORA-06512: at line 1

Line 101 in the procedure is select * from emp;

How do I use LOAD WHEN clause – any examples?

Answer 1

You could use this:

LOAD WHEN (1:1) != 0x'7e'

Reference: http://download.oracle.com/docs/cd/E11882_01/server.112/e16536/et_params.htm#i1009513