title: NLS_LANG parameter in Oracle
body: <p>I have installed oracle with chracterset POLISH_POLAND.EE8MSWIN1250. I can checked the values in select * from nls_database_parameters which are NLS_CHARACTERSET=EE8MSWIN1250 and NLS_NCHAR_CHARACTERSET=AL16UTF16</p>
  
  <p>For sqlplus, I have set NLS_LANG to POLISH_POLAND.EE8PC852. Now I run a sql file from sqlplus command prompt which is saved in "UTF-8 without BOM" as it has polish characters and it works fine. But how do I check if the values are fine in the database?</p>
  
  <p>I have checked in SQL Developer (after setting the NLS_LANG to polish) and they do not look correct. Please help.</p>