After exporting table data to Excel files in SQL Developer, we can do some import test. In this post, I'll show you how to import data from an Excel file.
To import excel to the database, we have 2 options:
Import Excel to be a New Table
Table Import Menu
We right-click on "Tables" category, and select Import Data.

SQL Developer - Table Import Data Menu
Select Excel File
Click on Browse to select the right Excel file to import.

SQL Developer - Select Excel File
Select Excel Format
We choose "excel 2003+ (xlxs)" as our import format.

SQL Developer - Choose Excel Format
We preview the data and then click "Next" to proceed.

SQL Developer - Preview Import Data
Choose Columns
We can import the entire or a part of the data by choosing columns. The column order can also be changed here.

SQL Developer - Choose Columns
Adjust Column Definition
We can adjust columns' definition here.

SQL Developer - Adjust Column Definition
The datetime format of being import data should be especially taken care of.

SQL Developer - Adjust Datetime Format
Preview Import Task Summary
We confirm the import task by previewing its summary.

SQL Developer - Preview Import Task Summary
Perform Import Task
If everything is ready, please click "Finish". The feedback is as below.

SQL Developer - Import Task Finished
Import Excel to an Existing Table
Table Import Menu
We right-click on the table name, and select Import Data.

SQL Developer - Table Import Data Menu
Select Excel File
Click on Browse to select the right Excel file to import.

SQL Developer - Table Import Data - 1
Preview Excel File
We can preview the content data in the file. If you don't have the header row, please uncheck Header choice.

SQL Developer - Table Import Data - 2
Select Columns
Columns can be selectively imported. Here we select all columns.

SQL Developer - Table Import Data - 3
Map Columns
We can map columns by Name or Position as shown in the following image.

SQL Developer - Table Import Data - 4
Import Data Summary
In the summary, we can go back anytime by clicking the item which needs to be modified. If there's nothing wrong, we can import the data now.

SQL Developer - Table Import Data - 5
Import Data Confirmed
It shows "Task successful and import committed".

SQL Developer - Table Import Data - Finished
Refresh Table Data
To see new content, we click on Refresh icon.

SQL Developer - Table Refresh Data
We did it.