Hey sir/ma'am, how are you?
First of all , My name is Talha and I'm a professional Developer, Database Administrator and Graphic Designer as well, have been working for a while now, I am also a User Interface designer,and really good at database as i can work on Sql , MySql , ORACLE and Sql server, i can also work on many languages lik php, java,c++, i have enough knowledge and experience to do your work perfectly, and i assure you that you'll be completely satisfied with the output, I'll do your work for as low as possible and and as best as possible and within timeline,
regarding your work, i read the questions and analyzed the table schema as well, all these questions are basically DML and DDL operations being performed on tables and are easy for me, hire me for this project, i'll complete it within a single day for sure and provide you the queries rightaway.
contact me to discuss more details,Please hire me for this project, i'll do your work perfectly,
Thank you