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.Write sql statements for implementing ALTER,UPDATE and DELETE Write the queries to implement any three types of joins
- 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. */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 zerob) 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.
- 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. SQL DataBase Test: 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 NULLa. 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 NULL