When I run it vselect 'dbo.OracleStaging'

Get following errors

Msg 537, Level 16, State 5, Procedure vselect, Line 24

Invalid length parameter passed to the LEFT or SUBSTRING function.

Msg 537, Level 16, State 5, Procedure vselect, Line 25

Invalid length parameter passed to the LEFT or SUBSTRING function.

Msg 156, Level 15, State 1, Line 6

Incorrect syntax near the keyword 'FROM'.