CET_TARDE - MTA Database - E_COMANDS

You have the following table:

You have the following SQL query SELECT * FROM dbo.ProAthlete WHERE Salary > 500000 The query takes too much time to return data. You need to improve the performance of the query. Which item should you add to the Salary column?

This question requires that you evaluate the underlined text to determine if it is correct. The CREATE TABLE command removes one or more table definitions and all data, indexes, triggers, constraints, and permission specifications for those tables. Instructions: Review the underlined text. If it makes the statement correct, select “No change is needed.” If the statement is incorrect, select the answer choice that makes the statement correct:

You have a table named Employee that includes four columns. You execute the following statement: SELECT * FROM Employee Which columns are returned?

Which keyword must be included in a create view statement?

The Product table contains the following data. You execute the following statement: SELECT COUNT(*) FROM Product WHERE Quantity > 18 What is the value returned by this statement?

You have a table that contains information about all students in your school. Which SQL keyword should you use to change a student’s first name in the table?

Which keyword would you use in a select statement to return rows that meet a specific condition?

You have the following table definition: CREATE TABLE Product (ID INTEGER PRIMARY KEY, Name VARCHAR(20), Quantity INTEGER) The Product table contains the following data. You execute the following statement: SELECT Name FROM Product WHERE Quantity IS NOT NULL How many rows are returned?

You execute the following statement: SELECT EmployeeID, FirstName, DepartmentName FROM Employee, Department This type of operation is called a/an:

You are writing an SQL statement to retrieve rows from a table. Which data manipulation language (DML) command should you use?

which command used to removes all rows from a table without logging the individual row deletions.

You need to delete a database table. Which data definition language (DDL) keyword should you use?

You need to rename a column in a database table. Which data definition language (DDL) statement should you use?

What are three valid data manipulation language (DML) commands? (Choose three.)

You are writing an SQL statement to retrieve rows from a table. Which data manipulation language (DML) command should you use?

17. You have the following table definition: CREATE TABLE Road (RoadID INTEGER NOT NULL, Distance INTEGER NOT NULL) The Road table contains the following data: You execute the following statement: INSERT INTO Road VALUES (1234, 36) What is the result?

You need to enable a new employee to authenticate to your database. Which command should you use?

This question requires that you evaluate the underlined text to determine if it is correct. Create a query that returns a set of table data by using the UPDATE statement. Instructions: Review the underlined text. If it makes the statement correct, select “No change is needed.” If the statement is incorrect, select the answer choice that makes the statement correct.

You accept an IT internship at a local charity. The charity asks you to keep a record of its volunteers by using a database table named Volunteer. The table has the following columns and rows:

You have a table that contains product IDs and product names. You need to write an UPDATE statement to change the name of a specific product to glass. What should you include in the update statement?

You have a table of products with fields for ProductID, Name, and Price. You need to write an UPDATE statement that sets the value in the InStock field to Yes for a specific ProductID. Which clause should you use in your update statement?

You need to list the name and price of each product, sorted by price from highest to lowest. Which statement should you use?

You have a table named Customer. You need to add a new column named District. Which statement should you use?

You need to remove a view named EmployeeView from your database. Which statement should you use?

On which database structure does an update statement operate?

You need to populate a table named EmployeeCopy with data from an existing table named Employee. Which statement should you use?

You execute the following statement: SELECT DepartamentName FROM Departament WHERE DepartamentID = (SELECT DepartamentID FROM Employee WHERE EmployeeID = 1234 This statement is an example of a/an:

Which command should you use to add a column to an existing table?

Which keyword can be used in a create table statement?

Which statement creates a composite key?

You are creating a database object named Student to store the following data: Which syntax should you use to create the object?

You have a database table named SongInformation as defined below:

You accept an IT internship at a local charity. The charity asks you to keep a record of its volunteers by using a database table named Volunteer. When volunteers ask to be removed from mailing lists, the table must be updated. You need to use a transaction to ensure that the database has data integrity and referential integrity. Which statement should you use?

You have a database table that contains the following columns: Which two Structured Query Language (SQL) statements can you use? (Choose two.)

You have the database table named Cars as defined below: How many rows are returned by the SQL statement?

Your database contains a table named Customer. You need to delete the record from the Customer table that has a CusromerID of 12345. Which statement should you use?

You have the following table definition: CREATE TABLE Product (ProductID INTEGER, Name VARCHAR(20)) You need to insert a new product. The product’s name is Plate and the product’s ID is 12345. Which statement should you use?

Which statement deletes the rows where the employee’s phone number is not entered?

You need to insert two new products into the Product table. The first product is named Book and has an ID of 125. The second product is named Movie and has an ID of 126. Which statement should you use?

You have a table named Product that contains the following data. The PrcducrID column is the primary key. The CategoryID column is a foreign key to a separate table named Category. You execute the following statement: INSERT INTO Product VALUES (3296, ‘Table’, 4444) What is the result?

You have a table named Employee that includes the following columns: EmployeeID Smp1oyeeName Which statement should you use to return the number of rows in the table?

You have a table named Product. The Product table has columns for ProductDescription and ProductCategory. You need to change the ProductCategory value for all the spoons in the Product table to 43. Which statement should you use?