Which joins describes a camparision of the columns of two tables with the < operater? a) Full join b) Equijoin c) Inner Join d) Non -Equijoin
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Which joins describes a camparision of the columns of two tables with the < operater?
a) Full join
b) Equijoin
c) Inner Join
d) Non -Equijoin
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- In Sql Oracle Apex application, Using GROUPING SETS, write a query to show the following groupings:• department_id, manager_id, job_id• manager_id, job_id• department_id, manager_idDescribe any issues you might have when doing join operations with the NATURAL JOIN keywords.Describe any difficulties you may have when performing join operations with the NATURAL JOIN keywords.
- reate a query that SELECT all of the EMPLOYEES from the EMPLOYEE TABLE that are Mangers. Include Employee ID first name, Lastname and Salary (Hint: Self Join) /* Write a query the gives the Employee ID first name, Lastname and Salary and Project Number of EMPLOYEES who aren't currently assigned to a project (hint outer join) Create a query that lists the lastnme, edlevel , job, the number of years they've worked as of Jan 01/2002 ( hint : year function Jan 01/2002 minus hiredate), and their salary. Get the employees that have the same Job as the employee named starts with J (hint subquery from employee) and hiredate < Jan 01/2002 Sort the listing by highest salary first. */b) STUDENT STU FNAME JOHN JOHN EMPLOYEE EMP ID 1001 1002 STU LNAME EMP NAME JOHN KING QUEEN JACK JACK KING QUEEN JAMES JAMES QUEEN Consider the two [2] tables given above and answer the following questions - 1003 1003 Explain the purpose of outer joins, write a query for types of outer joins.Using the WideWorldDistributors database and the Sales schema create a function that takes InvoiceID as an input parameter and returns all the rows from the table InvoiceLines for the InvoiceID value passed into the function. If the result is a NULL return a zero
- a. What is the result of this query:SELECT AVG (S.rating)FROM Sailors S b. What is the result of this query:SELECT COUNT (S.rating)FROM Sailors S c. Show the full outer join of S with itself, with the join condition being sid=sid .Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENANCE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Create a new table to store maintenance operations Test Query DESCRIBE MAINTENANCES Expected Results Field Type Null Key Default Extra CAR_ID char(5) NO PRI NULL MAINTENANCE_TYPE_ID char(5) NO PRI NULL MAINTENANCE_DUE date NO PRI NULLTask 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENACNE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Answer in MYSQL please