Lab Sql

I have a table containing each a start and and end date: DROP TABLE temp_period; CREATE TABLE publ… Read more Exclude Overlapping Periods In Time Aggregate Function

I am a digital marketing manager and am trying to breakdown my campaigns for sliced analysis. My ca… Read more "split_part" To Structure A Column Into A Table?

I have the following data: ID CLASS VALUE 1 NHB 700905.7243 1 HBW 164216.1311 1 HBO… Read more Postgresql Says "return And Sql Tuple Descriptions Are Incompatible"

I am looking to identify return visitors to a website within a 7 day window. A data sample and atte… Read more Postgresql: Identifying Return Visitors Based On Date - Joins Or Window Functions?

I have two tables p and u as following: (PostgreSQL 9.3) CREATE TABLE p ( pid integer NOT NULL, … Read more How To Delete Record When There Is A Deadlock Of Foreign Keys?

I am new to Postgresql and I am using version 9.3. I have a table in which i have a couple of rows.… Read more Postgresql: Row Number Changes On Update

I'm trying to delete a child object from a many-to-many relationship in sql-alchemy. I keep get… Read more Deleting From Many-to-many Sql-alchemy And Postgresql

I have this array from a json object: [1, 9, 12] Since it uses the square bracket notation because … Read more How To Turn A Simple Json(b) Int Array Into An Integer[] In Postgresql 9.4+