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Snowflake for Beginners – View A Column’s Comments

View A Column’s Comments

Create Table Of Superheroes With Comments

Column comments concern a particular column, while table comments are about the entire table.

- Create a table called SUPERHEROES. If it already exists, replace it.
  - Column called ID allowing up to five characters with a comment.
  "ID" VARCHAR (5) COMMENT 'A unique ID for each superhero.', 
  - Column called ALTER_EGO allowing up to 100 characters with a comment.
  "ALTER_EGO" VARCHAR(100) COMMENT 'The superhero's pseudonym.'

- A comment for the entire table.
COMMENT='A table to superheroes.'

Describe The Table

- Describe the table SUPERHEROES

View Table Comments

- Select the "name" and "comment" columns
SELECT "name", "comment" 
- Of the last query (in this case the DESCRIBE TABLE query)
name comment
ID A unique ID for each superhero.
ALTER_EGO The superhero’s pseudonym.

Python Example for Beginners

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There are two sides to machine learning:

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  • Theoretical Machine Learning: This is about math and abstraction and idealized scenarios and limits and beauty and informing what is possible. It is a whole lot neater and cleaner and removed from the mess of reality.

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