SQL Interview

I have 5 sample questions which I have been given to prepare me for an SQL interview. I have been given a schema of 4 tables and the questions include joins/subqueries, rollups, etc. I. would like someone to give me solutions to the 5 questions and an explanation as to what is happening in the solutions. I would also like someone who doesn't mind fielding a few additional questions afterwards if I am struggling to get my head around your solutions.

I have no doubt that this will be a very straightforward job for an SQL expert. I am looking for someone who can have the solutions back to me in under 24 hrs.

Please note that I am using Postgresql.

Kemahiran: Data Analytics, Pentadbiran Pangkalan Data, Pembangunan Pangkalan Data, PostgreSQL, SQL

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Tentang Majikan:
( 0 ulasan ) Ireland

ID Projek: #17553482

Dianugerahkan kepada:


Please provide me table details along with 5 questions that need to be solved. I would use PostgreSQL and provide solution fast.

€30 EUR dalam sehari
(83 Ulasan)

8 pekerja bebas membida secara purata €32 untuk pekerjaan ini


Hello Friend, I have 4+ year experience in design and development of Websites and Mobile Applications. I have relevant experience to your requirement. I can do your project. I have expertise in developing Appointme Lagi

€23 EUR dalam sehari
(10 Ulasan)

I have all the skills required for this project and I believe I can deliver this project on time and with all requirements implemented

€30 EUR dalam sehari
(15 Ulasan)

Hello Sir, Sir i have 7 years experience with your project skills i can provide you quality work on time Can you please come to the chat box so we can easily discuss about project details.. Thank You

€50 EUR dalam sehari
(1 Ulasan)

I am a pro at this. Will be happy to help you with this.

€34 EUR dalam sehari
(0 Ulasan)

Hi i have more then 4 years experience in databases and sql . i will provide you everything about sql on your desired time with max revisions.

€34 EUR dalam sehari
(0 Ulasan)

Hi, I have great experience in sql and would love to help you with the solutions. I will also provide you the assistance in future if required without any additional charges. Thanks, Navjosh

€24 EUR dalam sehari
(0 Ulasan)

Hi, I can write table queries, associations, and if any constraints. I can also extensively submit them in conjunction with the reasons for their explanations and uses. See you, Hazel

€30 EUR dalam sehari
(0 Ulasan)