create table world(ID bigint,Country_name varchar(15),Population bigint,Area bigint); create table Persons(ID int,Fname varchar(10),Lname varchar(10), Population bigint, Rating bigint,Country_Id ...

-- 2. Using the tables in the HR schema, write a query to get the following employee details. To keep it -- simple, the column names from the result set below are the column names form the database.

SQL, the Structured Query Language, is a cornerstone skill for anyone working with data. To master this powerful language, consistent practice is crucial. We present a curated list of 12 top-notch ...