Before proceeding, ensure that both Oracle Database and Redis are properly installed and running on your system. You will need Oracle's SQL*Plus or any Oracle client tool to interact with the Oracle DB, and Redis CLI to work with Redis. Ensure you have the necessary access credentials for both databases.

Determine which tables and data you need to transfer from Oracle to Redis. Clearly define the schema and data types of the Oracle tables to plan how they will be stored in Redis. This is crucial as Redis is a key-value store and does not have complex data types like Oracle.

Use SQL*Plus or another Oracle client tool to export the data. You can execute SQL queries to fetch the required data. For example:
```sql
SELECT * FROM your_table;
```
Save the output to a CSV or a text file for easier handling. You can use the `SPOOL` command in SQL*Plus to save the output to a file.

Since Redis uses a key-value store model, you need to decide how to structure your data. For instance, you can choose to store each row from the Oracle table as a hash in Redis. Convert your exported data into a format suitable for Redis commands such as `SET`, `HSET`, etc. You might write a script (using Python, Java, or another language) to automate this conversion.

Create a script to read the formatted data and use Redis commands to insert it into the Redis database. Here is a simple example using Python and the `redis-py` library:
```python
import redis
r = redis.Redis(host='localhost', port=6379, db=0)
with open('data.csv', 'r') as file:
for line in file:
key, value = line.strip().split(',')
r.set(key, value)
```
This script reads each line of the CSV file, splits it into key-value pairs, and inserts them into Redis.

Run your script to transfer data from the formatted file into Redis. Monitor the process to ensure that all data is transferred correctly and handle any errors that arise during execution. This step may take some time depending on the volume of data and network performance.

Once the data transfer is complete, use the Redis CLI to verify that the data has been correctly stored. Run commands such as `GET`, `HGETALL`, or `KEYS` to inspect the data entries. Ensure that the data integrity is maintained and that there are no missing or malformed entries.
By following these steps, you can successfully move data from an Oracle DB to Redis directly, without relying on third-party connectors or integrations.