PostgreSQL: Update the Table data using Subquery

In this post, I am going to share one demonstration to update the table data using a Subquery in the PostgreSQL.

This is very basic help but I have found that most of the beginners always try to find script a way to update the table using Subquery or Joins.

Below is a small demonstration:

Create two sample table for Employee:

Insert a sample data into both the table:

Update the count of the employee performance counter using Subquery:

The Result:

PostgreSQL Update Data Using Subquery

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Anvesh M. Patel.

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