How to Connect Oracle to Power BI in PostgreSQL

Galaxy Glossary

How do I connect Oracle to Power BI?

Connect an Oracle database to Power BI, enabling fast reporting and visualization of your transactional data.

Welcome to the Galaxy, Guardian!
You'll be receiving a confirmation email

Follow us on twitter :)

Oops! Something went wrong while submitting the form.

Description

Example H2

Example H3

What do I need before connecting Oracle to Power BI?

Install Oracle Client (11g or later), the matching 64-bit ODBC driver, and confirm you can log in to the database with sqlplus. Power BI must run in the same bit-ness as the driver.

How do I install the Oracle client and ODBC driver?

Download the “Oracle Database Client” from Oracle, choose Administrator or Runtime install, and include the “Oracle ODBC Driver” component.Reboot after installation so the driver registers.

How do I create an Oracle DSN for Power BI?

Open ODBC Data Sources 64-bit, click Add → Oracle in OraClient19Home1, name the DSN ORCL_PBI, set TNS Service Name to ORCLPDB1, enter user credentials, and test the connection.

How do I connect Power BI to Oracle?

In Power BI Desktop choose Get Data → Database → Oracle Database, type the server or DSN, pick DirectQuery or Import, and sign in with the same credentials used in the DSN test.

Can I enable DirectQuery for real-time dashboards?

Select DirectQuery during the connection dialog.Power BI will push SQL statements to Oracle at refresh time, keeping visualizations current without re-importing large tables.

How do I write SQL once connected?

Use the Advanced options box in the connector to paste custom SQL or switch to Power Query’s Oracle.Database function for parameterized retrieval.

Best practices for performance

Filter rows in the query, project only required columns, create indexes on Orders.customer_id and date fields, and use Power BI’s aggregation tables for high-volume fact tables.

Common mistakes and quick fixes

Using mismatched 32-bit/64-bit drivers prevents Power BI from loading the connector—install matching versions.Forgetting to unblock the Oracle port (1521) leads to time-outs—ask your DBA to whitelist Power BI’s IP.

Key takeaways

Install the right driver, configure a DSN, choose DirectQuery or Import purposely, and write efficient SQL to keep Oracle-backed dashboards snappy.

Why How to Connect Oracle to Power BI in PostgreSQL is important

How to Connect Oracle to Power BI in PostgreSQL Example Usage


-- Visualize monthly revenue in Power BI via Oracle connection
SELECT
    TO_CHAR(o.order_date,'YYYY-MM')   AS month,
    SUM(o.total_amount)               AS revenue
FROM Orders o
GROUP BY TO_CHAR(o.order_date,'YYYY-MM')
ORDER BY month;

How to Connect Oracle to Power BI in PostgreSQL Syntax


-- 1. ODBC DSN connection string
Driver={Oracle in OraClient19Home1};DBQ=ORCLPDB1;UID=your_user;PWD=your_password;

-- 2. Power Query function (Import mode)
let
    Source = Oracle.Database("ORCL_PBI", [Query="SELECT * FROM Orders"])
in
    Source;

-- 3. DirectQuery (SQL folding example)
SELECT
    c.name,
    SUM(oi.quantity * p.price) AS customer_lifetime_value
FROM Customers c
JOIN Orders o   ON o.customer_id = c.id
JOIN OrderItems oi ON oi.order_id = o.id
JOIN Products p ON p.id = oi.product_id
GROUP BY c.name;

Common Mistakes

Installing a 32-bit Oracle driver while running 64-bit Power BI. Fix: uninstall and install the 64-bit driver so the connector can load.
Leaving the connection mode on Import for very large tables. Fix: choose DirectQuery or add incremental refresh policies to avoid lengthy refreshes.

Frequently Asked Questions (FAQs)

Do I need a paid Power BI license?

No. Power BI Desktop is free for authoring. A Pro or Premium license is only needed to publish and share the report.

Can I pass parameters to the Oracle query?

Yes. Use Power Query parameters and reference them inside the Oracle.Database() function so the SQL folds server-side.

Is SSL supported?

Absolutely. Configure sqlnet.ora with SSL_CLIENT_AUTHENTICATION and reference the wallet directory in tnsnames.ora; Power BI will tunnel through the secure listener.