How Do I Find Data Type in SQL Developer?


Scott Campbell

Are you new to SQL Developer and wondering how to find the data type of a column? Don’t worry, we’ve got you covered!

In this tutorial, we will walk you through the process of finding the data type in SQL Developer. Let’s get started!

Finding Data Type in SQL Developer

When working with databases, it is essential to know the data types of your columns. The data type determines what kind of data can be stored in a particular column. To find the data type in SQL Developer, follow these steps:

Step 1: Connect to Your Database

The first step is to establish a connection to your database using SQL Developer. Once connected, navigate to the schema where your table resides.

Step 2: Locate Your Table

In the schema view, locate your table by expanding the appropriate nodes or searching for it using the search bar.

Step 3: View Table Details

To view the details of your table, right-click on it and select “Open”. This will open a new tab showing the table’s structure.

Step 4: Find Data Type

  • Option 1:
    • Select the “Columns” tab in the table details view.
    • Navigate through the columns listed until you find the one whose data type you want to know.
    • The data type will be displayed under the “Data Type” column for that specific column.

  • Option 2:
    • Select the “SQL” tab in the table details view.
    • Locate the CREATE TABLE statement for your table.
    • The data type will be specified right after the column name in the CREATE TABLE statement.

Step 5: Understand Data Types

Now that you have found the data type of your column, it is essential to understand what it means. Here are some common data types:

  • VARCHAR2: Used to store variable-length character data.
  • NUMBER: Used to store numeric values.
  • DATE: Used to store date and time information.
  • BOOLEAN: Used to store boolean values (true or false).

Note that there are many more data types available in SQL Developer, depending on your database system and its version. It is crucial to consult your database documentation for a complete list of data types and their specifications.


You have successfully learned how to find the data type in SQL Developer. Understanding data types is essential for creating accurate and efficient database structures. Now you can confidently work with your tables and columns knowing their respective data types!

We hope this tutorial has been helpful to you. Happy coding!

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