How can I create an array of dates in a date range using snowsql?

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How can I create an array of dates in a date range using snowsql?

Alejandro Penzini Answered question May 15, 2023
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To create an array of dates in a date range using SnowSQL, you can use a combination of Snowflake’s SQL syntax and SnowSQL’s scripting capabilities. Here’s an example of how you can achieve this:

Connect to Snowflake using SnowSQL: Open the SnowSQL command-line tool and connect to your Snowflake account by providing the necessary credentials.

Create a SQL script file: Open a text editor and create a new SQL script file with a .sql extension. For example, date_range.sql.

Write the SnowSQL script: In the SQL script file, write the SnowSQL script to generate the array of dates. Here’s an example script that creates an array of dates between a start date and an end date:

sql
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— Set the start and end dates
SET start_date = ‘2023-01-01’;
SET end_date = ‘2023-01-10’;

— Generate the array of dates
SELECT ARRAY_AGG(DATEADD(DAY, seq4(), DATE(:start_date))) AS date_range
FROM TABLE(GENERATOR(ROWCOUNT => DATEDIFF(DAY, :start_date, :end_date)));
In this script, we’re using Snowflake’s GENERATOR function along with ROWCOUNT and DATEADD functions to generate a series of dates. The ARRAY_AGG function is used to aggregate the generated dates into an array.

Save and execute the script: Save the SQL script file and execute it using SnowSQL. You can run the script by executing the following command in SnowSQL:
bash
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!source /path/to/date_range.sql
Make sure to replace /path/to/date_range.sql with the actual path to your SQL script file.

Retrieve the array of dates: After executing the script, SnowSQL will generate the array of dates based on the provided start and end dates. You can retrieve the result and work with the array of dates as needed.
The result will be a single row containing an array of dates within the specified date range. Each date in the array will be in the format YYYY-MM-DD.

By following these steps, you can use SnowSQL to create an array of dates in a date range within Snowflake.

Alejandro Penzini Changed status to publish June 30, 2023