Write an SQL query to find all dates’ Id with higher temperatures compared to its previous dates (yesterday). Table: Weather +—————+———+ | Column Name | Type | +—————+———+ | id | int | | recordDate | date | | temperature | int | +—————+———+ id is the primary key for this table. This table contains information about the … Read more
Write an SQL query to report the second-highest salary from the Employee table. If there is no second-highest salary, the query should report null. SQL schema Create table If Not Exists Employee (id int, salary int) Truncate table Employee insert into Employee (id, salary) values (‘1’, ‘100’) insert into Employee (id, salary) values (‘2’, ‘200’) insert into Employee … Read more
This page of gradjobopenings.com offers a comprehensive list of frequently asked SQL interview questions and answers to help you prepare for your next programming job interview. The questions cover a range of topics including SQL basics, data management, database design, advanced queries, and more. Brush up on your SQL skills and ace the interview with … Read more
Write an SQL query to report the first name, last name, city, and state of each person in the Person table. If the address of a personId is not present in the Address table, the report null instead. Leetcode Write SQL code to Combine Two Tables Return the result table in any order. Table: Person +————-+———+ | Column Name | Type | +————-+———+ | personId … Read more
