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- Which of the following SQL statements is invalid and returns an error message? ALTER TABLE books ADD CONSTRAINT books_pubid_uk UNIQUE (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_pk PRIMARY KEY (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_nn NOT NULL (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_fk FOREIGN KEY (pubid) REFERENCES publisher (pubid); All of the above statements are invalid.The relationship between CUSTOMER and ORDER is one-to-many. CUSTOMER table has 5 records and ORDER has 15. How many records you will get in the output if you run the following SQL statement? SELECT Customers.CustomerID, Orders.OrderIDFROM Customers, Orders; 5 15 20 75Write a SQL statement to get the list of all the law firms from thedatabase in alphabetical order by firm name. Include all thecolumns from the LawFirm table.
- Write an SQL statement that will delete rows where the selling price is greater than 25 in the Stock table.What is the intepretation of the following SQL query in natural language (plain English)? SELECT F_Name ||’ ‘|| L_Name as “Employee Name”, Salary FROM Employee WHERE Salary> 20,000 AND Gender=’M’ GROUP BY Dep_No ORDER BY L_Name;Write SQL query to fetch the Name of all employees working in IT departmentfrom table Employee(Name, ID, Dept).
- In advanced SQL, which of the following is a SQL query that performs execution of outer query for once in a row similar to looping? Choose an answer A Attribute list Subqueries B HAVING Subqueries C FROM Subqueries D Correlated SubqueriesFor the table definition below, write a SQL UPDATE statement that changes all annual salaries to monthly salaries. CREATE TABLE Worker ( WORKER_ID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, FIRST_NAME TEXT, LAST_NAME TEXT, SALARY DOUBLE, JOINING_DATE DATETIME, DEPARTMENT CHAR(25));Instructions: Write the suitable SQL statement to answer the following questions based on the following tables ( image for better table) Table Name: Employee EMP_ID FNAME LNAME SALARY JOIN_DATE DEP_NO 101 John Abraham 10000 01-JAN-13 11 202 Michael Clarke 80000 01-JAN-13 22 303 Roy Thomas 70000 01-FEB-13 11 404 Tom Jose 60000 01-FEB-13 22 505 Jerry Pinto 65000 01-FEB-13 22 606 Philip Mathew 75000…
- Instructions: Write the suitable SQL statement to answer the following questions based on the following tables ( image for better table) Table Name: Employee EMP_ID FNAME LNAME SALARY JOIN_DATE DEP_NO 101 John Abraham 10000 01-JAN-13 11 202 Michael Clarke 80000 01-JAN-13 22 303 Roy Thomas 70000 01-FEB-13 11 404 Tom Jose 60000 01-FEB-13 22 505 Jerry Pinto 65000 01-FEB-13 22 606 Philip Mathew 75000…Instructions: Write the suitable SQL statement to answer the following questions based on the following tables ( image for better table) Table Name: Employee EMP_ID FNAME LNAME SALARY JOIN_DATE DEP_NO 101 John Abraham 10000 01-JAN-13 11 202 Michael Clarke 80000 01-JAN-13 22 303 Roy Thomas 70000 01-FEB-13 11 404 Tom Jose 60000 01-FEB-13 22 505 Jerry Pinto 65000 01-FEB-13 22 606 Philip Mathew 75000…Instructions: Write the suitable SQL statement to answer the following questions based on the following tables ( image for better table) Table Name: Employee EMP_ID FNAME LNAME SALARY JOIN_DATE DEP_NO 101 John Abraham 10000 01-JAN-13 11 202 Michael Clarke 80000 01-JAN-13 22 303 Roy Thomas 70000 01-FEB-13 11 404 Tom Jose 60000 01-FEB-13 22 505 Jerry Pinto 65000 01-FEB-13 22 606 Philip Mathew 75000…