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select distinct window function in PostgreSQL

I have a data table like the following: How do you select the distinct continuities for each Longitudinal distance in a 10-step rolling window? Ideally, I’d want something in the Ideal output column …

EXISTS not working with subquery in WITH clause

I ran into a query where the EXISTS clause is not working properly. The query returns results even for items where no matching record exist, seemingly ignoring the EXISTS completely. It used to work …

SQL Combining two different tables

(P.S. I am still learning SQL and you can consider me a newbie) I have 2 sample tables as follows: Table 1 |Profile_ID| |Img_Path| Table 2 |Profile_ID| |UName| |Default_Title| My scenario is,…