Querying Metadata information from Tableau postgres server - tableau-api

I want to query the number of active users out of total users who have actively used my dashboard named say ABC in Tableau? What join do I need to do on which Tables and what columns will I pull in?

Open dashboard in tableau server and click on Who has seen this view?
Here you can find all information that you need. You can also download it.

Here is the "Who has seen this View?" SQL:
SELECT DISTINCT
T271.friendly_name AS "Friendly_Name (Sys Users)",
T271.name AS "Name (Sys Users)",
SUM(T298.nviews) AS "Nviews (VW Stats)",
MAX(T298.time) AS "Time (VW Stats)",
T301.name AS "Name (WB)",
T297.name AS "Name (Views)"
FROM
views_stats T298
INNER JOIN users T290 ON T298.user_id = T290.id
INNER JOIN views T297 ON T298.view_id = T297.id
INNER JOIN workbooks T301 ON T297.workbook_id = T301.id
INNER JOIN system_users T271 ON T290.system_user_id = T271.id
GROUP BY
T271.friendly_name,
T271.name,
T301.name,
T297.name

Related

PostgreSQL: How to check if a list is contained in another list?

I'm working with PostgreSQL 13.
I have two tables like this:
permission_table
name
permission
Ann
Read Invoice
Ann
Write Invoice
Ann
Execute Payments
Bob
Read Staff data
Bob
Modify Staff data
Bob
Execute Payroll
Carl
Read Invoice
Carl
Write Invoice
risk_table
risk_id
permission
Risk1
Read Invoice
Risk1
Write Invoice
Risk1
Execute Payments
Risk2
Read Staff data
Risk2
Modify Staff data
Risk2
Execute Payroll
I'd like to create a new table containing the names of the employees of the first table whose permissions are pointed as risks in the second table. After the execution, the results should be like this:
name
risk_id
Ann
Risk1
Bob
Risk2
Since Carl only has two of the three permissions belonging to Risk2, he will not be included in the results.
My first brute force approach was to compare the list of permissions belonging to a risk to the permissions belonging to an employee. If the first list is included in the second one, then that combination of employee/risk will be added to the results table.
INSERT INTO results_table
SELECT a.employee, b.risk_id FROM permission_table a, risk_table b WHERE
((SELECT permission FROM risk_table c WHERE b.permission = c.permission ) EXCEPT
(SELECT permission FROM permission_table d WHERE a.employee=d.employee)
) IS NULL;
I'm not sure if the results could be correct using this approach, because if the tables are big, it takes a very long time even if I add a WHERE clause limiting the query to just one employee.
Could you please help?
One way of approaching this one is by
computing the amount of permissions for each "risk_id" value
joining the "permissions" and "risks" table with counts on matching "permission" values
making sure that the distinct count of permissions for each triplet "<permissions.name, risks.risk_id, risks.cnt>" corresponds to the full amount of permissions.
WITH risks_with_counts AS (
SELECT *, COUNT(permission) OVER(PARTITION BY risk_id) AS cnt
FROM risks
)
SELECT p.name, r.risk_id
FROM permissions p
INNER JOIN risks_with_counts r
ON p.permission = r.permission
GROUP BY p.name, r.risk_id, r.cnt
HAVING COUNT(DISTINCT r.permission) = r.cnt
Carl won't be included in the output as he doesn't have all permissions from "risk_id = 'Risk 1'"
Check the demo here.

Rooms per user in matrix synapse database

How can I get the total number of matrix rooms a user is currently joined using the synapse postgres database? (excluding those rooms the user has left or been kicked, or been banned from)
I spent several hours looking for this, so I think maybe it can help others.
You can get the number of rooms a user is currently joined querying the table user_stats_current:
SELECT joined_rooms FROM user_stats_current WHERE user_id='#myuser:matrix.example.com';
And if you want to get specifically the ids of the rooms the user is currently joined, you can use the table current_state_events like in this query:
SELECT room_id FROM current_state_events
WHERE state_key = '#myuser:matrix.example.com'
AND type = 'm.room.member'
AND membership = 'join';
Even further, if you want not only the room id but the room name as well, you can add the table room_stats_state like in this other query:
SELECT e.room_id, r.name
FROM current_state_events e
JOIN room_stats_state r USING (room_id)
WHERE e.state_key = '#myuser:matrix.example.com'
AND e.type = 'm.room.member'
AND e.membership = 'join';

Do ampersands work for user input in reports?

I have a working query that goes something like this:
Base table ACCT, link to others (listagg/subqueries) and ensure matching year("rollyear") field. Then the final step is to say which year ACCT table is in.
SELECT
FROM table ACCT
FULL OUTER JOIN table TABLE2 on ACCT.id = TABLE2.id and ACCT.rollyear= TABLE2.rollyear
...
FULL JOIN table TABLE7 on ACCT.id = TABLE7.id and ACCT.rollyear= TABLE7.rollyear
where ACCT.rollyear = extract (year from sysdate) +1
I typically use the calendar year plus one. I've been playing with using ACCT.rollyear = &rollyear to get user input... The limitation/issue I have is getting that running using the "User Defined Reports" feature.
Am I using this feature correctly? Does that only work for SQL Queries and not reports? Ive seen videos/comments about Stored Procedures and using "Accept...." but my attempts to mimic give errors and I'm not sure I'm on the right track. Thanks for any advice.
Change your query to use a bind variable:
where ACCT.rollyear = :rollyear
Then in the 'Binds' section you will see a variable with that name:
When you run your query you'll then be prompted to supply the value:

Get Users which have been imported in Confluence via AD

Is there a way in the DB of confluence to get the number of users which have been imported via Active Directory? Like searching for a tag which identifies if a user has been imported or created on the site.
I believe you can run following query against your database:
select u.id, u.user_name, u.active from cwd_user u
join cwd_membership m on u.id=m.child_user_id join cwd_group g on m.parent_id=g.id join cwd_directory d on d.id=g.directory_id
where d.directory_name='<External_Directory_Name>;
Replace the with the name of your External User Directory. If you don't know the name maybe you can take it from following:
select * from CWD_Directory

products and configurable_products in postgresql

I have a Product table and a ConfigurableProduct table.
If there are several variations of the same product like a shirt in different colors I create a ConfigurableProduct.
When a user is looking at the catalog he should see a list of products unless there is a ConfigurableProduct, then he should see it with a select box for each variations.
How do I structure the tables for Product and ConfigurableProduct and how do I query the db so I can page through the results?
Thanks
I am going to answer this as if you do not have tables created. I am not sure if that is true though.
The following is a simple example, but I assume you have more data.
products
id
name
configurable_products
id
variation
product_id REFERENCES products(id)
You can just make the configurable products a reference to products.
If you want a listing of products with their configurations then you can do:
select p.name, c.variation
from products p left outer join configurable_products c
on (p.id = c.product_id);
Of course you can just search for all the configurable_products based on the product id too when needed.
As for the paging part of your question you will have to clarify what you mean. You can use limit to limit results if you don't want to get everything at once.