I am running the following SQL query using Python and psycopg2 and is getting errors. SQL query: Errors: Variables and their values Python Functions: How should i fix this? Answer I solved this issue by converting the values of in the list [‘timestamps’] to str from datetime.
Find rows where sum of columns from multiple rows is greater than X
The best way to explain this question is through the real life example it would solve. I have two tables, Match Overview and Match Attributes Match overview looks like While match attributes looks like Where match_id is a foreign key for id in the match overview table, and attribute id is the integer represen…
Junction table indexing in many-to-many relationship
Let’s say we have a PRODUCT table, ORDER table and a junction table PRODUCT_ORDER. I create a junction table with the following script: Also an index for the PK was created automatically: It is expected that there will be practically only read operations for these tables and I would like to index the ju…
Date formatting from BigQuery to Data Studio
I’m trying to connect Google Analytics data from BigQuery for visualization in Data studio; I can’t get the date formatted in a readable format in data studio. I’ve tried using this reg expression: but i still can’t get it to work. The text format is ‘20210921’ Answer Use p…
Casting Decimal to Currency in AWS Athena
I have a field value(decimal(23, 2)) and I am querying over it like this: sum(value) and as output i get 1200000.32 I am trying to cast it to currency to get $1.200.000,32 like this: How can I get the desired currency type? Answer There is no money type in presto. And Amazon’s version of presto does not…
Saving with SQL
Hi all I have a page that I’m trying to ADD to a list and save it with viewmodel and SQL. but my list is empty Can you tell me where am I wrong?? on my Xaml (Page1): my Model (Energypage): And on my EnergyViewModel: I did bond my page1 to Energyviewmodel, and it works find when I didn’t use
Create a new column for a table with select data from another table
I have a SQL table that shows the date and time information of a topic. FirstTable looks like this: id DateP TimeP 1 1397/01/02 01:30 2 1398/05/09 05:30 3 1398/06/07 05:10 4 1398/08/09 06:12 5 1399/02/01 07:15 I want to create columns for another table that are the result of selecting the DateP column and the…
TimescaleDB – how get timestamp differences between rows?
Say you need to know how long something was ‘active’ in a time range – (with timestamp in minutes, as an example) – For a 0-15min bucket, the answer would be 6.8-3.5 + 15-9.3 = 9.0mins. (ie the first active state lasts 6.8-3.5mins, the next one goes from 9.3mins to the 15min barrier). …
TSQL – join two tables with TotalCounter and Pagination
I’m trying to join 2 tables (one to many relation) that include all the columns from first table and only the number of rows from the second one. Use case: one Service has many Reviews. The query looks like: The error is I need to include either average or group by clause but how would that look like I …
how to get start date of latest dept in which working
I’m trying to get the record of emp current working dept with start date Data, in below data Grp column is I’ve derived to get the 3rd last record, which is the correct result. query tried so far Am not able to think ahead, that how can I use Grp now to get 3rd last record as a output. Data