Added required notebook (#97)

* Added required notebook

* Updated read me

* Removed the second trigger

---------

Co-authored-by: souravg-db <souravg-db>

README.md

@@ -22,6 +22,7 @@ Operations are applied concurrently across multiple tables
   * [GDPR right of access: extract user data from all tables at once](docs/GDPR_RoA.md)
   * [GDPR right of erasure: delete user data from all tables at once](docs/GDPR_RoE.md)
   * [Search in any column](docs/Search.md)
+  * Update Owner of Data Objects ([example notebook](examples/update_owner_of_data_objects.py))
 * **Semantic classification**
   * [Semantic classification of columns by semantic class](docs/Semantic_classification.md): email, phone number, IP address, etc.
   * [Select data based on semantic classes](docs/Select_by_class.md)

examples/scan_with_user_specified_data_source_formats.py

@@ -4,6 +4,16 @@
 
 # COMMAND ----------
 
+# MAGIC %md
+# MAGIC ### Install discoverx lib
+
+# COMMAND ----------
+
+# %pip install dbl-discoverx
+# dbutils.library.restartPython()
+
+# COMMAND ----------
+
 # MAGIC %md
 # MAGIC ### Declare Variables
 

examples/update_owner_of_data_objects.py

@@ -0,0 +1,77 @@
+# Databricks notebook source
+# MAGIC %md
+# MAGIC #Update Owner of Data Objects
+
+# COMMAND ----------
+
+# MAGIC %md
+# MAGIC ### Install discoverx lib
+
+# COMMAND ----------
+
+# %pip install dbl-discoverx
+# dbutils.library.restartPython()
+
+# COMMAND ----------
+
+# MAGIC %md
+# MAGIC ### Declare Variables
+
+# COMMAND ----------
+
+dbutils.widgets.text("catalogs", "*", "Catalogs")
+dbutils.widgets.text("schemas", "*", "Schemas")
+dbutils.widgets.text("tables", "*", "Tables")
+dbutils.widgets.text("owner","[email protected]","owner")
+dbutils.widgets.dropdown("if_update_catalog_owner", "YES", ["YES","NO"])
+dbutils.widgets.dropdown("if_update_schema_owner", "YES", ["YES","NO"])
+
+# COMMAND ----------
+
+catalogs = dbutils.widgets.get("catalogs")
+schemas = dbutils.widgets.get("schemas")
+tables = dbutils.widgets.get("tables")
+owner = dbutils.widgets.get("owner")
+if_update_catalog_owner = dbutils.widgets.get("if_update_catalog_owner")
+if_update_schema_owner = dbutils.widgets.get("if_update_schema_owner")
+from_table_statement = ".".join([catalogs, schemas, tables])
+
+# COMMAND ----------
+
+# MAGIC %md
+# MAGIC ### Initiaize discoverx
+
+# COMMAND ----------
+
+from discoverx import DX
+
+dx = DX()
+
+# COMMAND ----------
+
+# MAGIC %md
+# MAGIC ### Update Owner of data objects to user specified value
+
+# COMMAND ----------
+
+def update_owner(table_info):
+  catalog_owner_alter_sql = f""" ALTER CATALOG `{table_info.catalog}` SET OWNER TO `{owner}`"""
+  schema_owner_alter_sql = f""" ALTER SCHEMA `{table_info.catalog}`.`{table_info.schema}` SET OWNER TO `{owner}`"""
+  table_owner_alter_sql = f""" ALTER TABLE `{table_info.catalog}`.`{table_info.schema}`.`{table_info.table}` SET OWNER TO `{owner}`"""
+  try:
+    if(if_update_catalog_owner == 'YES'):
+      print(f"Executing {catalog_owner_alter_sql}")
+      spark.sql(catalog_owner_alter_sql)
+
+    if(if_update_schema_owner == 'YES'):
+      print(f"Executing {schema_owner_alter_sql}")
+      spark.sql(schema_owner_alter_sql)
+
+    print(f"Executing {table_owner_alter_sql}")
+    spark.sql(table_owner_alter_sql)
+  except Exception as exception: 
+    print(f"  Exception occurred while updating owner: {exception}")
+
+# COMMAND ----------
+
+dx.from_tables(from_table_statement).map(update_owner)