updates

definitions/aggregation_table.sqlx

+config {
+  type: "table",
+  description: "Description of the first table.",
+}
+SELECT SUM(number)  AS total FROM ${ref("source_table")} 
\ No newline at end of file

definitions/first_view.sqlx

--- This is an example SQLX file to help you learn the basics of Dataform.
--- Visit https://cloud.google.com/dataform/docs/sql-workflows for more information on how to configure your SQL workflow.
-
--- You can delete this file, then commit and push your changes to your repository when you are ready.
-
--- Config blocks allow you to configure, document, and test your data assets.
-config {
-  type: "view", // Creates a view in BigQuery. Try changing to "table" instead.
-  columns: {
-    test: "A description for the test column", // Column descriptions are pushed to BigQuery.
-  }
-}
-
--- The rest of a SQLX file contains your SELECT statement used to create the table.
-
-SELECT 1 as test

definitions/second_view.sqlx

-config { type: "view" }
-
--- Use the ref() function to manage dependencies.
--- Learn more about ref() and other built in functions here: https://cloud.google.com/dataform/docs/dataform-core
-
-SELECT test from ${ref("first_view")}

definitions/source_table.sqlx

+config {
+  type: "table",
+  description: "Description of the first table.",
+}
+SELECT 1 AS number
+UNION ALL
+SELECT 5 AS number
+UNION ALL 
+SELECT 3 AS number
\ No newline at end of file

workflow_settings.yaml

 defaultProject: maximal-chemist-355505
 defaultLocation: asia-south1
-defaultDataset: dataform
+defaultDataset: DFDemo
 defaultAssertionDataset: dataform_assertions
 dataformCoreVersion: 3.0.0