PostgreSQL - Export PostgreSQL Table to CSV file
Last Updated :
23 Nov, 2022
In this article we will discuss the process of exporting a PostgreSQL Table to a CSV file. Here we will see how to export on the server and also on the client machine.
For Server-Side Export:
Use the below syntax to copy a PostgreSQL table from the server itself:
Syntax: COPY Table_Name TO 'Path/filename.csv' CSV HEADER;
Note: If you have permission to perform a read/write operation on the server-side then use this command.
Example:
First, let’s create a table with columns id, first_name, last_name, and email to the database:
CREATE TABLE students(
id SERIAL PRIMARY KEY,
first_name VARCHAR,
last_name VARCHAR,
email VARCHAR UNIQUE
);
Let’s insert some data into our students table:
INSERT INTO students(first_name, last_name, email)
VALUES('Virender', 'Sehwag', '[email protected]'),
('Hardik', 'Pandiya', '[email protected]'),
('Shreyas', 'Iyer', '[email protected]'),
('Rishabh', 'Pant', '[email protected]');
Now check the data in the table:
SELECT * FROM students;
Output:

Now export the above table as a CSV file.
COPY students TO '/tmp/student1.csv' CSV HEADER;
Note: Make sure that the path that you specify should have read/write permission.
If everything works fine then it should look like this:

The CSV file would look like below:

We can also specify columns that we want to export or write a query for the data.
COPY (SELECT first_name FROM students) TO '/tmp/student.csv' CSV HEADER;
Output:

The CSV file would look like below:
CSV FileFor Client-Side Export:
Use the below syntax for client-side export of CSV file:
Syntax: \copy Table_Name to 'Path/filename.csv' CSV HEADER
If you do not have permission to perform a read/write operation on the server-side and want to copy the table to the client-side machine then use this command.
Let's use the students table here also.
Execute the below command to export the table to a CSV file.
\copy students to '/tmp/students.csv' CSV HEADER
Output:

The CSV file would look like below:

You can give a query to select data here also.
Similar Reads
Non-linear Components In electrical circuits, Non-linear Components are electronic devices that need an external power source to operate actively. Non-Linear Components are those that are changed with respect to the voltage and current. Elements that do not follow ohm's law are called Non-linear Components. Non-linear Co
11 min read
Spring Boot Tutorial Spring Boot is a Java framework that makes it easier to create and run Java applications. It simplifies the configuration and setup process, allowing developers to focus more on writing code for their applications. This Spring Boot Tutorial is a comprehensive guide that covers both basic and advance
10 min read
Class Diagram | Unified Modeling Language (UML) A UML class diagram is a visual tool that represents the structure of a system by showing its classes, attributes, methods, and the relationships between them. It helps everyone involved in a projectâlike developers and designersâunderstand how the system is organized and how its components interact
12 min read
Steady State Response In this article, we are going to discuss the steady-state response. We will see what is steady state response in Time domain analysis. We will then discuss some of the standard test signals used in finding the response of a response. We also discuss the first-order response for different signals. We
9 min read
Backpropagation in Neural Network Back Propagation is also known as "Backward Propagation of Errors" is a method used to train neural network . Its goal is to reduce the difference between the modelâs predicted output and the actual output by adjusting the weights and biases in the network.It works iteratively to adjust weights and
9 min read
Polymorphism in Java Polymorphism in Java is one of the core concepts in object-oriented programming (OOP) that allows objects to behave differently based on their specific class type. The word polymorphism means having many forms, and it comes from the Greek words poly (many) and morph (forms), this means one entity ca
7 min read
3-Phase Inverter An inverter is a fundamental electrical device designed primarily for the conversion of direct current into alternating current . This versatile device , also known as a variable frequency drive , plays a vital role in a wide range of applications , including variable frequency drives and high power
13 min read
What is Vacuum Circuit Breaker? A vacuum circuit breaker is a type of breaker that utilizes a vacuum as the medium to extinguish electrical arcs. Within this circuit breaker, there is a vacuum interrupter that houses the stationary and mobile contacts in a permanently sealed enclosure. When the contacts are separated in a high vac
13 min read
AVL Tree Data Structure An AVL tree defined as a self-balancing Binary Search Tree (BST) where the difference between heights of left and right subtrees for any node cannot be more than one. The absolute difference between the heights of the left subtree and the right subtree for any node is known as the balance factor of
4 min read
CTE in SQL In SQL, a Common Table Expression (CTE) is an essential tool for simplifying complex queries and making them more readable. By defining temporary result sets that can be referenced multiple times, a CTE in SQL allows developers to break down complicated logic into manageable parts. CTEs help with hi
6 min read