Hi @lumen, Generally, notebook Id will be populated if the version was created via notebook. I suspect these versions are created by other means? 

Here is an example where I created first 2 versions via a notebook and the 3rd version created via SQL Editor. As  expected notebook id appears for the first 2 versions, but not for the 3rd one.

Hi @RameshRetnasamy first off thank you so much for taking the time to reply to my question. In my case they were indeed created via Notebooks, but I'll re-evaluate on my end as I might've missed something. If the issue persists, I'll re-assert the question.

Cheers 

Yeah in my case I'm starting to think this could be an installation thing, or a unset property. So I created the following sample code and got the below history. What could this be? I never had this problem before.

spark.sql("CREATE TABLE IF NOT EXISTS enterprisedata.hr.employees(name STRING, salary INT)")
spark.sql("DROP TABLE IF EXISTS enterprisedata.hr.employees_no_salary")
spark.sql("INSERT INTO enterprisedata.hr.employees VALUES ('Todd',10000)")

## READ TABLE IN UC
emp = spark.read.table("enterprisedata.hr.employees")

## RENAME A COLLUMN
emp = emp.withColumnRenamed("name", "name_employee" )

## DROP COLUMNS
emp = emp.drop("salary")

## WRITE
emp.write.mode("overwrite").saveAsTable("enterprisedata.hr.employees_no_salary")