ORA-00166 Remote or Local Nesting Level is too Deep

Error Code
ORA-00166

Description
Remote/local nesting level is too deep.

Cause:
Possible cause of this error is, too many remote table operations required a reverse trip back to the local site, for example to execute a local function on a remote table.

Action
To fix this error, rearrange the query or co-locate the functions with the tables.

reference

See Also