Issue Migrating Character Data Using a Full Export and Import

Question

Hi There;
I have a database in my local machine that doesn't support Turkish characters. My NLS_CHARACTERSET is WE8ISO8859P1, It must be changed to WE8ISO8859P9 , since it supports full Turkish characters. I would like to migrate character data using a full export and import and my strategy is as follows:
1- create a full export to a location in network,
2- create a new database in local machine that it's NLS_CHARACTERSET is WE8ISO8859P9 (I would like to change NLS_LANGUAGE and NLS_TERRITORY by the way)
3- and implement full import to newly created database.
I 've implemented first step, but I couldn't implement the second step. I 've created the second step by using toad editor by clicking Create -> New Database but I can not connect the new database. I must connect new database in order to perform full import. How can I do this?
Thanks in advance.
Technical Details
NLS_LANGUAGE.....................AMERICAN
NLS_TERRITORY.....................AMERICA
NLS_CURRENCY.....................$
NLS_ISO_CURRENCY..............AMERICA
NLS_NUMERIC_CHARACTERS    .,
NLS_CHARACTERSET.............WE8ISO8859P1
NLS_CALENDAR.....................GREGORIAN
NLS_DATE_FORMAT................DD-MON-RR
NLS_DATE_LANGUAGE...........AMERICAN
NLS_SORT...............................BINARY
NLS_TIME_FORMAT.................HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT......DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT............HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT..DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY............ $
NLS_COMP...............................BINARY
NLS_LENGTH_SEMANTICS.......BYTE
NLS_NCHAR_CONV_EXCP........FALSE
NLS_NCHAR_CHARACTERSET...AL16UTF16
NLS_RDBMS_VERSION............10.2.0.1.0

Answer 1

First, if your applications run on Windows, do not use WE8ISO8859P9. Use TR8MSWIN1254.
Second, if you create a new database, the database is not necessarily immediately accessible to outer world. I do not know Toad and I have no idea if it performs all necessary steps required for the new database to be visible.  For example, in the Toad itself, I assume you should create a new connection that references the new SID of the newly created database and use this new connection to connect. However, connections without a connection string use the ORACLE_SID setting in Registry to tell connecting applications which instance (database) to use.  To change the database accessed with an empty connection string you need to modify Registry (unless Toad has an option to do this for you). If you want to connect without changing Registry, you need a connect string. This requires setting up Oracle Listener to serve the new database (unless default configuration is used and the database registers itself with the default listener). It also requires changing tnsnames.ora file to create an alias for the new database. Net Manager and/or Net Configuration Assistant can help you with this.
I wonder if Database Configuration Assistant would not be a better tool to create new Oracle databases.
Thanks,
Sergiusz