Snowflake と Amazon QuickSight を活用した AI 駆動 BI の実現

One dashboard shows 42,000 active movie view counts while another shows 38,500. Your chat agent references a third number entirely. Data teams spend hours reconciling numbers instead of answering strategic questions, and trust in analytics erodes.

This is a pattern that we see across many organizations. Teams spend more effort reconciling numbers than actually using them, quietly slowing down decision-making and chipping away at confidence in the data.

The root cause is usually a *last-mile gap*: business logic lives inside each individual application rather than at the data layer where every application can share it.

Amazon Quick Sight datasets on top of Snowflake semantic views close that gap. A *semantic view* is a Snowflake schema object that attaches business definitions (table, relationships, metrics, and dimensions) directly to your data. Any downstream application that queries the semantic view inherits the same definitions, so both AI and BI systems interpret information uniformly. This leads to trustworthy answers and significantly reduces the risk of AI hallucinations.

You can use semantic views in Cortex Analyst and query these views in a SELECT statement. You can also share semantic views in private listings. As native Snowflake schema objects, semantic views have object-level access controls. You can grant or restrict usage and query rights just as with tables and views, supporting authorized, governed usage across SQL, BI, and AI endpoints. You can read more about how to write Semantic SQL in the Snowflake documentation.

In this post, you will learn how to build an end-to-end integration between Snowflake semantic views and Amazon Quick. The sample data is user review data for a media company. You start by loading movie review data from Amazon Simple Storage Service (Amazon S3) into Snowflake, define a semantic view in SQL to add business meaning, explore it with natural-language queries through Cortex Analyst, and then generate an Amazon Quick dataset and dashboard. The dataset can be created manually or with a provided automation script. By the end, your BI team or AI team can ask natural-language questions against a governed data layer and trust that every response reflects the same business logic.

Solution architecture

Figure 1: End-to-end architecture—data flows from Amazon S3 into Snowflake, where a semantic view governs business definitions, enabling both Cortex Analyst natural-language queries and Amazon Quick Sight dashboards.

This integration uses Snowflake’s native capabilities to ingest structured movie review data directly from Amazon S3 into a database schema. You then define a Snowflake semantic view with table relationships, dimensions, and metrics to enhance AI-powered analytics, all with SQL. The semantic model shifts from individual AI or BI layers to the core data platform, so all tools use the same semantic concepts.

Solution walkthrough

This walkthrough uses a movie review dataset to demonstrate the integration. The dataset consists of three tables (MOVIES, USERS, and RATINGS) that you load from Amazon S3 into Snowflake. On top of those tables, you define a semantic view that maps raw columns to business-friendly metrics and dimensions.

Figure 2: A Snowflake semantic view adds business context (metrics, dimensions, and relationships) to raw tables, creating a shared definition layer for AI and BI tools.

This integration empowers the BI team to use natural language for creating interactive charts and dashboards, building calculated fields, developing data stories, and conducting what-if scenarios—and significantly reduces the risk of AI hallucinations. The BI team can also incorporate this Snowflake-sourced dashboard into the Amazon Quick Movies Quick Space to enable retrieval augmented generation (RAG).

Prerequisites

Before you begin, make sure that you have the following in place:

• Snowflake Enterprise account on AWS. If you don’t have one, sign up for a Snowflake trial account and select Enterprise on AWS.

• ACCOUNTADMIN role access in Snowflake. This role is required for creating semantic views and granting object-level privileges.

• AWS account. If you don’t have one, create an AWS account.

• AWS Region alignment. Sign up for both accounts in AWS US West (Oregon) or US East (N. Virginia). Amazon Quick Sight is available in US East (N. Virginia), US West (Oregon), Asia Pacific (Sydney), and Europe (Ireland). Refer to the Amazon Quick documentation for the latest Regional availability.

• Basic familiarity with SQL and Python. You run SQL statements in Snowsight (Snowflake’s web interface) and run a Python-based script in AWS CloudShell.

• Familiarity with data analysis concepts such as tables, dimensions, and metrics.

Time commitment: Allow 60–90 minutes to complete this tutorial end to end.

Estimated cost: This tutorial uses minimal resources. Expect less than $10 in combined AWS and Snowflake costs.

Step 1: Set up your Snowflake environment and load data

You use Snowsight, Snowflake’s web interface, to import and run a provided notebook. The notebook creates the necessary compute warehouse, database, and schema, then loads the movie review data, so you don’t need to run the setup SQL manually.

Import the notebook

To get started, import the pre-built tutorial notebook into your Snowflake environment so you can follow along interactively.

• Download the notebook SF_Quick_Quickstart.ipynb from the assets folder in the GitHub repository.

• In Snowsight, choose the plus (+), Notebook, Import, then select the downloaded notebook file.

• Accept the default settings and select Run on Warehouse. The notebook defaults to SYSTEM$STREAMLIT_NOTEBOOK_WH (a system-provided compute resource), but you can choose a different warehouse from the dropdown. The notebook creates a new warehouse called WORKSHOPWH for this tutorial.

Figure 3: Image showing how to import the notebook in Snowsight using the plus (+) menu.

Figure 4: Image showing the select Run on Warehouse option and the compute warehouse at notebook creation seclection.

After notebook creation, you can choose a different warehouse from the notebook settings. For more information, see notebook settings.

Run the notebook to load data

Snowflake Notebooks come pre-installed with common Python libraries—numpy, pandas, matplotlib, and more. To add other packages, choose the Packages dropdown in the top right of the notebook.

Run all cells in sequence. The notebook provisions the WORKSHOPWH warehouse and loads the movie review data into the MOVIES database. After each cell completes, you see confirmation output below the cell.

Verify the setup: After running all cells, confirm that you see three tables: MOVIES, USERS, and RATINGS in the MOVIES.PUBLIC schema.

Troubleshooting: If a cell fails to execute, verify that you’re using the ACCOUNTADMIN role. You can set this at the top of your notebook or worksheet with:

USE ROLE ACCOUNTADMIN;

Figure 5: Run all notebook cells to load data into the MOVIES database.

Step 2: Define the semantic view and export the semantic view DDL

After all cells run successfully, locate the Get_SV_DDL cell. This cell executes the following SQL to retrieve the semantic view’s DDL:

SELECT TO_VARCHAR(GET_DDL(
    'SEMANTIC_VIEW',
    'MOVIES.PUBLIC.MOVIE_ANALYTICS_SV'
));

Important After running the Get_SV_DDL cell, choose Download as CSV and save the file as SF_DDL.csv. You need this file in Step 4 to generate your Amazon Quick Sight dataset automatically. If you skip this step, the dataset generator can’t parse your schema.

Figure 7: Choose Download as CSV to save SF_DDL.csv—required for the Quick Sight dataset generator.

Step 3: Explore your data with Cortex Analyst

With the semantic view created, you can immediately start querying your data in plain English—no SQL required. This step verifies that the semantic layer works correctly before you connect Amazon Quick Sight.

View the semantic view in Snowsight

• In Snowsight, select AI & ML from the navigation pane.

• Select the SEMANTIC_QUICK_START_ROLE that you created earlier to confirm you have the right permissions.

• Navigate to the Movies database, then Public schema and select the MOVIES_ANALYST_SV semantic view to inspect its structure.

Figure 8: The MOVIES_ANALYST_SV semantic view visible in the Snowsight AI & ML section.

Add verified queries

Verified queries are example questions with confirmed correct answers. They give Cortex Analyst a reference when responding to similarly phrased questions, improving accuracy and reducing query latency. Add at least one verified query before testing natural-language questions.

Example: verify “What is the average rating for all movies in 2023?” by confirming that Cortex Analyst generates the correct SQL. When a user later asks a similarly worded question, Cortex Analyst matches it against your verified queries first.

Figure 9: Add verified queries in Snowsight to improve Cortex Analyst accuracy.

Test natural-language queries

Try the following sample questions to confirm the semantic view responds correctly:

• Show me the total rating values by movie title.

• List the top 10 most popular movies of all time.

Figure 10: Cortex Analyst translates natural-language questions into SQL using your semantic view definitions.

To use SQL to query a semantic view directly, refer to the semantic view query examples in the Snowflake documentation.

Step 4: Create an Amazon Quick Sight dataset

Now that your data is semantically defined in Snowflake, connect it to Amazon Quick Sight for interactive dashboards. The provided Quick Sight Dataset Generator script automates the entire pipeline from Snowflake DDL to a ready-to-query Quick Sight dataset.

Option 1: Run the Python package locally

Download the full solution from the GitHub repository. Follow the guidance in the README.md to connect to Snowflake, fetch the semantic view definition, convert the definition into Quick dataset schema, and create the Quick dataset. The Python scripts are interactive with self-guidance.

Option 2: Run the bash scripts in AWS CloudShell

As an alternative to running Python scripts locally, you can run the provided bash and Python scripts directly in AWS CloudShell to store credentials securely, and interactively create a fully configured Quick Sight dataset with SPICE ingestion—all from the command line.

Upload the solution package

Download Solution_Package.zip from the GitHub repository. Then open the AWS Management Console and launch AWS CloudShell. Upload Solution_Package.zip using the Actions → Upload file option in CloudShell.

Figure 11: Upload Solution_Package.zip to AWS CloudShell from the Actions menu.

Run the dataset generator workflow

Follow these steps in sequence.

• Unzip and enter the directory:

unzip Solution_Package.zip
cd Solution_Package

• Upload the SF_DDL.csv file you downloaded from the Snowflake notebook (the output of GET_DDL on the semantic view).

• Create an AWS secret. Store your Snowflake credentials (account identifier, username, and password) as an AWS Secrets Manager secret. The script references this secret when creating the Quick Sight data source.

python create_secret.py

• Run the interactive workflow.After the secret is created, run the single interactive script:

python run_workflow.py

The interactive workflow script guides you through selecting or creating a Snowflake data source, configuring a new or existing dataset, parsing your SF_DDL.csv to generate a Quick Sight schema, creating or updating the dataset with SPICE ingestion, and monitoring ingestion progress until completion. Optionally, you can verify the ingestion status in the Quick Sight console and share the dataset with other Quick Sight users.

Step 5: Build your dashboard in Amazon Quick Sight

After ingestion completes, open the Amazon Quick Sight console and navigate to Datasets. Select movie-analytics-dataset to confirm the data loaded correctly, then choose Create analysis to start building.

Explore with natural-language questions

Ask the same natural-language questions you tested in Cortex Analyst. Quick Sight generates corresponding visuals automatically. Try these sample questions to get started:

• “Show me the highest-rated movies” – generates a bar chart ranking movies by average rating.

• “What are the top 10 most-reviewed movies?” – displays a ranked list by review count.

• “How do ratings distribute across genres?” – produces a breakdown by genre.

• “Show me the trend of ratings over time” – creates a line chart of rating activity.

• “Which users have submitted the most reviews?” – highlights the most active reviewers.