The document outlines the process for generating a new table using Tableau and Redshift without deleting, inserting, or updating existing data. It includes examples of selecting columns and rows, transforming data using grouping and mathematical operators, and creating views in Redshift. Additionally, it provides links to relevant SQL and Redshift documentation for further reference.

1. Tableau + Redshift views
for dummies

2. GOAL
Generate a new table with the desired data

3. No, no, no, no
We are not going to:
• Delete
• Insert
• Update
(for the moment…)

4. What we use
Redshift (PostgreSQL 8.0.2)
Tableau 8.1
Workbench / Navicat / Aginity workbench (for
previous exploration)

5. Selecting columns
Select A, C
FROM table;
A B C
1 ES 10
2 DE 20
3 ES 30
4 FR 40
3 ES 40
6 FR 60
A C
1 10
2 20
3 30
4 40
3 40
6 60

6. Selecting columns and rows
A B C
1 ES 10
2 DE 20
3 ES 30
4 FR 40
3 ES 40
6 FR 60
A C
1 10
3 30
3 40
Select A, C
WHERE B = ‘ES’
FROM table;

7. Transforming data
A B C
1 ES 10
2 DE 20
3 ES 30
4 FR 40
3 ES 40
6 FR 60
Select A, SUM(C) AS revenue
FROM table
GROUP BY A;
A revenue
1 10
2 20
3 70
4 40
6 60

8. Transforming data with operators
A B C
1 ES 10
2 DE 20
3 ES 30
4 FR 40
3 ES 40
6 FR 60
Select A, (C – C*.3) AS benefits
FROM table;
A benefits
1 7
2 14
3 21
4 28
6 28
6 42

9. Mathematical operators
Select A, (C – C*.3) AS benefits
FROM table;
Operator Description Example Result
+ addition 2 + 3 5
- subtraction 2 - 3 -1
* multiplication 2 * 3 6
/ division 4 / 2 2
% modulo 5 % 4 1
^ exponentiation 2.0 ^ 3.0 8
|/ square root | / 25.0 5
||/ cube root || / 27.0 3
@ absolute value @ -5.0 5
Math functions:
http://docs.aws.amazon.com/redshift/latest/dg/Math_functions.html

10. What seems to work better
1. Create a view in Redshift
2. Add the view to the table
3. Edit the Join if needed
4. Ready to go

11. Create a view in Redshift
CREATE OR REPLACE VIEW public.payingusers
SELECT
transactions.user_id, sum(transactions.amount_in_dollars)
AS revenue
FROM transactions
WHERE transactions.amount_in_dollars > 0::numeric(12,4)
GROUP BY transactions.user_id;

12. What seems to work better
1. Create a view in Redshift
2. Add the view to the table
3. Edit the Join if needed
4. Ready to go

13. Add the view to the table
• In Data select Edit Tables… and add the view

14. What seems to work better
1. Create a view in Redshift
2. Add the view to the table
3. Edit the Join if needed
4. Ready to go

15. Edit the Join if needed
• In Tables select Edit… and check the Join.

16. Ready to go

17. Links
• http://www.w3schools.com/sql/
• http://sqlzoo.net
• http://aws.amazon.com/es/documentation/redshift/
• http://www.postgresql.org/docs/8.0/interactive/index.html
• http://www.aginity.com/workbench/redshift/
• http://www.navicat.com/

18. Thanks !
Ivan Magrans
Product Owner
Golden Manager
@ivan_mv
ivan@mediavida.com