Write the following queries in SQL: Display the list of all course sections offered in Spring 2018, along with the ID and name of each instructor teaching the section. If a section has more than one instructor, that section should appear as many times in the result as it has instructors. If a section does not have any instructor, it should still appear in the result with the instructor name set to “—”.

Do fast please.

How do I do this question in SQL command?  Use the Oracle database employees table and CASE expression to decode the departmentid. Display the department id, last name, salary, and a column called “New Salary” whose value is based on the following conditions: If the department id is 10 then 1.25 * salary If the department id is 90 then 1.5 * salaryIf the department id is 130 then 1.75 * salary Otherwise, display the old salary.

Write the SQL code that will change the PROJ_NUM to 14 for employees who were hired before January 1, 1994, and whose job code is at least 501. When you finish Problems 7–15, the EMP_2 table will contain the data shown in Figure P8.15.

This is in sql. For all artists who are currently in a band: Return the artist’s full name (as a single value), the band name, and how long in years the artist has been in the band. The artist should only be shown once for  each band. (Hint: Remember that the data might include an artist who left a band and then rejoined. That is the challenge here!)   Tables with values are in image.

8. Using today’s date, determine the age (in months) of each book that JustLee sells. Makesure only whole months are displayed; ignore any portions of months. Display the book title,publication date, current date, and age. SQL commands

Write queries in SQL to answer each of the following questions: 1. Find all students in Comp. Sci. dept 2. Find all students with total credits > 100 3. Find all students who took course in Spring 2010 (Remove duplicates please) 4. Find all courses taken by the student whose ID is 76543 and also find his name create table student (ID varchar(5), name varchar(20) not null, dept_name varchar(20), tot_cred numeric(3,0), primary key (ID) ); create table takes (ID varchar(5), course_id varchar(8), sec_id varchar(8), semester varchar(6), year numeric(4,0), grade varchar(2), primary key (ID, course_id, sec_id, semester, year) ); insert into student values ('00128', 'Zhang', 'Comp. Sci.', '102'); insert into student values ('12345', 'Shankar', 'Comp. Sci.', '32'); insert into student values ('19991', 'Brandt', 'History', '80'); insert into student values ('23121', 'Chavez', 'Finance', '110'); insert into student values ('44553', 'Peltier', 'Physics', '56'); insert into student values…

Using SQL: List the title_name and book type of books that have the lowest royalty rate.

what is the difference between inner and outer join in sql?

Need help writing SQL statements for these, I'm having trouble with my returns. Explanation would help a lot.