Solution is that,

1. Open the Data Flow

2. Click / Select the Data / Source Component of Oracle DB

3. Now Right click and Select Advanced.

4. In the Advanced window go to the last tab.

5. In last tab, you will find External Columns, Output Columns & Error Columns.

6. Now Click on Each Column and change the Value from String to "Unicode - String" for all the Sting Columns.

7. Once you Complete it, close the advanced window.

8. Select the Oracle Source Component and Open Properties.

9. Change the two Characteristics

a. Default Code to "0"(Zero).

b. Validate the Datatype "FALSE"