Quickstart: Use Azure Data Studio to connect and query PostgreSQL

Članak
07/12/2024

This quickstart shows how to use Azure Data Studio to connect to PostgreSQL, and then use SQL statements to create the database tutorialdb and query it.

Prerequisites

To complete this quickstart, you need Azure Data Studio, the PostgreSQL extension for Azure Data Studio, and access to a PostgreSQL server.

Install Azure Data Studio.
Install the PostgreSQL extension for Azure Data Studio.
Install PostgreSQL. (Alternatively, you can create a Postgres database in the cloud using az postgres up).

Connect to PostgreSQL

Start Azure Data Studio.
The first time you start Azure Data Studio the Connection dialog opens. If the Connection dialog doesn't open, select the New Connection icon in the SERVERS page:
In the form that pops up, go to Connection type and select PostgreSQL from the drop-down.

Fill in the remaining fields using the server name, user name, and password for your PostgreSQL server.

Screenshot of the New Connection screen.

Setting	Example value	Description
Server name	localhost	The fully qualified server name
User name	postgres	The user name you want to sign in with.
Password (SQL Login)	password	The password for the account you're logging in with.
Password	Check	Check this box if you don't want to enter the password each time you connect.
Database name	<Default>	Fill this if you want the connection to specify a database.
Server group	<Default>	This option lets you assign this connection to a specific server group you create.
Name (optional)	leave blank	This option lets you specify a friendly name for your server.

Select Connect.

After successfully connecting, your server opens in the SERVERS sidebar.

Note

To connect to an Azure Database for PostgreSQL with Entra ID, visit Use Microsoft Entra ID for authentication with PostgreSQL.

Create a database

The following steps create a database named tutorialdb:

Right-click on your PostgreSQL server in the SERVERS sidebar and select New Query.
Paste this SQL statement in the query editor that opens up.
```
CREATE DATABASE tutorialdb;
```
From the toolbar select Run to execute the query. Notifications appear in the MESSAGES pane to show query progress.

Tip

You can use F5 on your keyboard to execute the statement instead of using Run.

After the query completes, right-click Databases, and select Refresh to see tutorialdb in the list under the Databases node.

Create a table

The following steps create a table in the tutorialdb:

Change the connection context to tutorialdb using the drop-down in the query editor.
Paste the following SQL statement into the query editor and select Run.

Note

You can either append this or overwrite the existing query in the editor. Selecting Run executes only the query that is highlighted. If nothing is highlighted, selecting Run executes all queries in the editor.
```
-- Drop the table if it already exists
DROP TABLE IF EXISTS customers;
-- Create a new table called 'customers'
CREATE TABLE customers(
    customer_id SERIAL PRIMARY KEY,
    name VARCHAR (50) NOT NULL,
    location VARCHAR (50) NOT NULL,
    email VARCHAR (50) NOT NULL
);
```

Insert rows

Paste the following snippet into the query window and select Run:

-- Insert rows into table 'customers'
INSERT INTO customers
    (customer_id, name, location, email)
 VALUES
   ( 1, 'Orlando', 'Australia', ''),
   ( 2, 'Keith', 'India', 'keith0@adventure-works.com'),
   ( 3, 'Donna', 'Germany', 'donna0@adventure-works.com'),
   ( 4, 'Janet', 'United States','janet1@adventure-works.com');

Query the data

Paste the following snippet into the query editor and select Run:

-- Select rows from table 'customers'
SELECT * FROM customers;

The results of the query are displayed:

Next steps

Learn about the scenarios available for Postgres in Azure Data Studio.

Deli putem