Learn how to create auto increment column in PostgreSQL using pgAdmin. Our PostgreSQL Support team is here to help you with your questions and concerns.

How to create an auto increment column in PostgreSQL using pgAdmin

If you are looking for help creating an auto-increment column in PostgreSQL using pgAdmin, you are in luck.

Our experts have put together this step-by-step guide to help you out:

1. First, we have to open pgAdmin and then connect to our PostgreSQL database.
2. After that, we must expand the database if we want to create the auto-increment column by heading to the left-hand navigation pane.
3. Next, click the Schemas folder to expand it and choose the schema that contains the table we want to modify.
4. Then, we have to expand the Tables folder and choose the table to that we want to add the auto-increment column to.
5. At this point, right-click the table and choose Design from the context menu.
6. Here, we have to click the Add Column button in the toolbar.
7. Next, enter the required information in the corresponding field in the dialog box as seen below:
   • Column field:

     Enter a name for the auto-increment column.
   • Data Type field:

     Choose the data type we want the auto-increment column to be.
   • Constraints field:

     Select the Primary Key checkbox to make the auto-increment column the primary key for the table.
   • Default Value field:

     Choose Sequence from the dropdown menu.
   • Sequence Name field:

     Enter a name for the sequence that will be used to generate the auto-increment values.
   • Start field:

     Set the Start value for the sequence.
   • Increment field:

     Set the Increment value for the sequence.
8. Now, click the Save button in the toolbar to save the changes to the table.
9. Finally, close the Design view and return to the main pgAdmin window.

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Conclusion

To sum up, our Support Techs demonstrated how to create an auto-increment column in PostgreSQL via pgAdmin.