sql() funtion in BODS

Hi,

can anyone tell me what is wrong in the below statement.

sql('HANA_DB','INSERT INTO MYSCHEMA.ERROR_LOG VALUES($L_ERROR_NUMBER ,$L_ERROR_CONTEXT ,$L_ERROR_MESSAGE ,$L_ERROR_TIMESTAMP)');

I am using the above statement inside custom function and calling the custom function from the catch block when the job fails.

The above statement is working fine if I am not using the local variables.

1. $L_ERROR_NUMBER

2. $L_ERROR_CONTEXT

3. $L_ERROR_MESSAGE

4. $L_ERROR_TIMESTAMP

are local variable.

Thank you,

Regards,

Ranjith.