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Tag: having

NULL MAX(col) value even though DB has a valid record

So I am trying to extract the maximum invoiceNo for current year and this is how I implemented it with PDO: However, $response keeps getting assigned to the else clause : . This is how my DB looks like: Hence I was expecting the $response to be 2022-2. I think there is something wrong with my SQL query and I

Filter table to leave out specific rows

I have the table and now I want to list every ProjectName where there is no specified Leader like this: Right now I only know how to filter all ProjectNames with Leaders, but not the way to filter them the other way! Any help is appreciated 🙂 Answer One way to do it is with aggregation and the condition in

Postgres – Select days with FAILURE status only

I have table with multiple result per days for particular project_name (SUCCESS, FAILURE, ABORTED, UNSTABLE). I would like to select only days where only FAILURE status occurs – nothing else. There are some days with multiple status (after FAILURE it can be solved and get status with different time and …