SQL to get 3 adjacent actions without duplicate from the flags

I have a question that a little bit similar with question#66044663 but more complicated. Here’s my dummy data. I want to get 3 adjacent actions(no duplicate) from the flag by each user. Here’s the …

Calculate order sequence in BigQuery

I am new to BigQuery SQL and struggling with calculating an “order sequence” from a table of customer orders. In my example, I am working with customer purchases, where I have the sales …

PostgresSQL custom sequence

I have a problem with nextval function, I have a custom sequence in my DB called InternalCodes and when i want to make a insert like this: insert into “Membership” (“Name”, “…