Dbmover for MSSQL to Oracle is a powerful tool to import MSSQL contents into Oracle database.
DBMover allows you to define flexible table/field mappings between MSSQL and Oracle databases.It also lets you perform a query and use the query result as a data source during migration.
Dbmover for MSSQL to Oracle allows to automate and schedule the conversion process.

Direct connection to Oracle and MSSQL databases without additional settings.
User-friendly wizard-style interface.

Ability to save settings into profile.
Automatic data migration at the time and period you specify.
Ability to import SQL queries into Oracle.
Ability to export MSSQL data into dump file.
Ability to establish flexible mappings between source and destination tables.
Robust error-handling mechanism recording every possible error without any user interaction.

Fully optimized performance resulting in quicker manipulation of large amounts of data.