Which SQL statement returns only records that have matching values in both tables A and B?
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- in mySQL, an outer join will only return records that exist in both the left and right tables. True or false?THIS MODULE IS ABOUT SUBQUERIES, SO YOU MUST USE SUBQUERIES INSTEAD OF TABLE JOINS (a) From which two fields in which table can you calculate the enrollment of a section?(b) From which table can you get both course and section numbers?(c) Which field in table SECTION uniquely identifies a section, section id or section no?(d) Write a SQL statement to show sections and their enrollment.(e) Write a SQL statement to show sections with enrollment greater than five. Display both course andsection numbersViews in SQL are kind of virtual tables. A view also has rows and columns as they are in a real table in the database. We can create a view by selecting fields from one or more tables present in the database. A View can either have all the rows of a table or specific rows based on certain conditions. Under what circumstances would you create a View?
- Which SQL statement returns all records in table A as well as matched rows from table B? SELECT A.*, B.* FROM A LEFT JOIN B ON A.id_on_b = B.id SELECT A.*, B.* FROM A INNER JOIN B ON A.id_on_b = B.id SELECT A.*, B.* FROM A RIGHT JOIN B ON A.id_on_b = B.id SELECT A.*, B.* FROM A FULL OUTER JOIN B ON A.id_on_b = B.idIn the SQL Oracle Application Write one query to return the employee_id, job_id, hire_date, and department_id of all employees and a second query listing employee_id, job_id, start_date, and department_id from the job_history table and combine the results as one single output. Make sure you suppress duplicates in the output.In Sql These are some database from a set of tables insert into AccountHolder(AccountID, CustomerID, AccountType)values (55003, 115, 'Savings'),(44001, 101, 'Chequing'),(55006, 109, 'Savings'),(44002, 102, 'Chequing'),(44003, 113, 'Chequing'),(55007, 108, 'Savings'),(44004, 103, 'Chequing'),(44005, 110, 'Chequing'),(55005, 112, 'Savings'),(44006, 114, 'Chequing'),(55001, 111, 'Savings'),(44007, 107, 'Chequing'),(44008, 104, 'Chequing'),(55004, 106, 'Savings'),(44009, 105, 'Chequing'),(44010, 113, 'Chequing'),(55002, 107, 'Savings'),(44011, 110, 'Chequing'),(44012, 104, 'Chequing') select * from AccountHolder insert into Branch(LocationID, BranchName, Address, Type, DepositSum, LoanSum)values (1, 'Boulevard Branch', '3268 Wade Boulevard', 'Rural', 171848.88, 37681.72),(2, 'Avenue Branch', '4814 Dare Avenue', 'Rural', 232707.42, 68324.56),(3, 'Street Branch', '208 Ferry Street', 'Commercial', 375010.75, 44665.08),(4, 'Road Branch', '468 Zulauf Road', 'Commercial', 496001.41,…
- Assume that you have a table ABC that contains two columns: employee name e namen and the salary sal. Write a SQL statement that lists all employees' names and gives each a 15% pay increase and display new salary always rounded down to the nearest whole number. Display name, old salary, and new salary. Use the editor to format your answer Question 14 Write a SQL statement to un-grant the select and alter privilege from the user Almed. Assume that the table name is 'asudent Use the editte formot veWhat is the difference between natural join and self join?Using php and sql: Create a PDO object to connect to your database for running select queries.Write a database query to output all the messages in the messages table.
- true/false INNER JOIN combines two relations. It takes the second relation, and appends it to the end of the first relation. In Corelated Subqueries, subquery is executed independent of the outer query: subquery is executed only once. SELECT * FROM sys.Relations displays information about all the user-defined relations within a database. Given GENDER and STUDENT relations, SELECT Gender, FName, LName FROM GENDER LEFT OUTER JOIN STUDENT ON STUDENT.GenderCode = GENDER.GenderCode ≡ SELECT Gender,FName, LName FROM STUDENT RIGHT OUTER JOIN GENDER ON STUDENT.GenderCode = GENDER.GenderCode The statements select RIGHT('I wish I had attended the practice hours', 9) and select…using postgresql: Write a trigger that will be activated when a new customer is added to the Customers table and that verifies that the ID of the new record does not yet exist in the table. If it does, the request shall be rejected. Show what happens when a record with an existing ID is attempted to be added to the Customer table to verify that your trigger is working properly. Customers table columns: id, first name, last name, emailIn 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 Subqueries