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91 lines
3.2 KiB
Markdown
91 lines
3.2 KiB
Markdown
---
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id: postgresql
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title: PostgreSQL
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---
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ToolJet has the capability to connect to PostgreSQL databases for data retrieval and modification.
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## Establishing a Connection
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To establish a connection with the PostgreSQL global datasource, you can take either of the following steps: click on the "Add new global datasource" button in the query panel, or access the [Global Datasources](/docs/data-sources/overview) page through the ToolJet dashboard.
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ToolJet requires the following information to connect to your PostgreSQL database:
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- **Host**
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- **Port**
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- **SSL**
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- **Database Name**
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- **Username**
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- **Password**
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- **Connection Options**
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- **SSL Certificate**
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We recommend creating a new PostgreSQL database user to have control over ToolJet's access levels.
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:::caution
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Ensure that the host/IP of the database is accessible from your VPC in case you are using self-hosted ToolJet. If you are using ToolJet cloud, please whitelist our IP.
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:::
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<div style={{textAlign: 'center'}}>
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<img className="screenshot-full" src="/img/datasource-reference/postgresql/pgconnection.png" alt="PG connection"/>
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</div>
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Click the **Test connection** button to verify the correctness of the credentials and the accessibility of the database to ToolJet server. Click the **Save** button to save the data source.
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## Querying PostgreSQL
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Click on `+Add` button on the query panel and select the PostgreSQL from the global datasources.
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PostgreSQL query editor has two modes, **SQL** & **GUI**. **[SQL mode](/docs/data-sources/postgresql#sql-mode)** can be used to write raw SQL queries and **[GUI mode](/docs/data-sources/postgresql#gui-mode)** can be used to query your PostgreSQL database without writing queries.
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<div style={{textAlign: 'center'}}>
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<img className="screenshot-full" src="/img/datasource-reference/postgresql/newquery.png" alt="PG connection"/>
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</div>
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#### SQL Mode
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To execute SQL queries, select the SQL mode from the dropdown and enter your query in the editor. Click the `Run` button to execute the query.
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<div style={{textAlign: 'center'}}>
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<img className="screenshot-full" src="/img/datasource-reference/postgresql/sql1.png" alt="PG connection"/>
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</div>
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#### GUI Mode
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Choose the GUI mode from the dropdown and select the operation **Bulk update using primary key**. Provide the **Table** name and the **Primary key column** name. Then, in the editor, input the **records** as an array of objects.
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Here is an example of records for a bulk update using the provided format:
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```json
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[
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{
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"customer_id": 1,
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"country": "India"
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},
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{
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"customer_id": 2,
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"country": "USA"
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}
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]
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```
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Please note that the records should be enclosed within square brackets `[]`, and each record should be represented as an object with key-value pairs.
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Click the `Run` button to execute the query.
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<div style={{textAlign: 'center'}}>
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<img className="screenshot-full" src="/img/datasource-reference/postgresql/gui1.png" alt="PG connection"/>
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</div>
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:::tip
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- You can apply transformations to the query results. Refer to our transformations documentation for more details: **[link](/docs/tutorial/transformations)**
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- Check out this how-to guide on **[bulk updating multiple rows](/docs/how-to/bulk-update-multiple-rows)** from a table component.
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:::
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