SQL Quiz

Your database contains two tables named DomesticSalesOrders and InternationalSalesOrders. Both tables contain more than 100 million rows. Each table has a Primary Key column named SalesOrderId. The data in the two tables is distinct from one another. Business users want a report that includes aggregate information about the total number of global sales and total sales amounts. You need to ensure that your query executes in the minimum possible time. Which query should you use?

You are a database developer at an independent software vendor. You create stored procedures that contain proprietary code. You need to protect the code from being viewed by your customers. Which stored procedure option should you use?

You use a Microsoft SQL Server 2012 database. You want to create a table to store Microsoft Word documents. You need to ensure that the documents must only be accessible via Transact-SQL queries. Which Transact-SQL statement should you use?

A table named Profits stores the total profit made each year within a territory. The Profits table has columns named Territory, Year, and Profit. You need to create a report that displays the profits made by each territory for each year and its preceding year. Which Transact-SQL query should you use?

You use Microsoft SQL Server 2012 to develop a database application. Your application sends data to an NVARCHAR(MAX) variable named @var. You need to write a Transact-SQL statement that will find out the success of a cast to a decimal (36,9). Which code segment should you use?select

You are writing a set of queries against a FILESTREAM-enabled database. You create a stored procedure that will update multiple tables within a transaction. You need to ensure that if the stored procedure raises a run-time error, the entire transaction is terminated and rolled back. Which Transact-SQL statement should you include at the beginning of the stored procedure?

You have a Microsoft SQL Server 2012 database that contains tables named Customers and Orders. The tables are related by a column named CustomerID. You need to create a query that meets the following requirements: Returns the CustomerName for all customers and the OrderDate for any orders that they have placed. Results must include customers who have not placed any orders. Which Transact-SQL query should you use?

You create a stored procedure that will update multiple tables within a transaction. You need to ensure that if the stored procedure raises a run-time error, the entire transaction is terminated and rolled back. Which Transact-SQL statement should you include at the beginning of the stored procedure?

You develop a Microsoft SQL Server 2012 database. You need to create a batch process that meets the following requirements: Status information must be logged to a status table. If the status table does not exist at the beginning of the batch, it must be created. Which object should you use?

You administer a database that includes a table named Customers that contains more than 750 rows. You create a new column named PartitionNumber of the int type in the table. You need to assign a PartitionNumber for each record in the Customers table. You also need to ensure that the PartitionNumber satisfies the following conditions: Always starts with 1. Starts again from 1 after it reaches 100. Which Transact-SQL statement should you use?

You use a Microsoft SQL Server 2012 database that contains a table named BlogEntry that has the following columns: Id is the Primary Key. You need to append the “This is in a draft stage” string to the Summary column of the recent 10 entries based on the values in EntryDateTime. Which Transact-SQL statement should you use?

You use Microsoft SQL Server 2012 to develop a database application. You create a stored procedure named DeleteJobCandidate. You need to ensure that if DeleteJobCandidate encounters an error, the execution of the stored procedure reports the error number. Which Transact-SQL statement should you use?

You administer a Microsoft SQL Server 2012 database. The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.) EmTmp ” Column Name Condensed Type EmployeeID int EmployeeNum char{lO) LastNamen nvarchar(21 ) FirstNamen nvarchar(21} MiddlName nvarchar(20) DateHired Date DepartmentID int JobTrtJe varchar(200) ReportsToID int Column Name Descriptjon EmployeeID(pk) uniquely identifies the employee record in the table Used throughout the database by all the other tables that reference the Employee table EmployeeNum an alphanumeric value calculated according to company Requirements Has to be unique within the Employee table Exists only within the Employee table DepartmentID References another table named Department that contains data each department in the company ReportsToID Contains the EmployeeID of the manager to whom an employee reports ReportsToID Contains the EmployeeID of the manager to whom an employee reports Confidential information about lne employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table. You need to assign the appropriate constraints and table properties to ensure data integrity and visibility. On which column in the Employee table should you a create a unique constraint?

You administer a Microsoft SQL Server 2012 database. The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.) Confidential information about the employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table. You need to assign the appropriate constraints and table properties to ensure data integrity and visibility. On which column in the Employee table should you use an identity specification to include a seed of 1,000 and an increment of 1?

You administer a Microsoft SQL Server 2012 database that includes a table named Products. The Products table has columns named Productld, ProductName, and CreatedDateTime. The table contains a unique constraint on the combination of ProductName and CreatedDateTime. You need to modify the Products table to meet the following requirements: Remove all duplicates of the Products table based on the ProductName column. Retain only the newest Products row. Which Transact-SQL query should you use?

You develop three Microsoft SQL Server 2012 databases named Database1, Database2, and Database3. You have permissions on both Database1 and Database2. You plan to write and deploy a stored procedure named dbo.usp_InsertEvent in Database3. dbo.usp_InsertEvent must execute other stored procedures in the other databases. You need to ensure that callers that do not have permissions on Database1 or Database2 can execute the stored procedure. Which Transact-SQL statement should you use?

You use Microsoft SQL Server 2012 database to develop a shopping cart application. You need to invoke a table-valued function for each row returned by a query. Which Transact-SQL operator should you use?

You support a database structure shown in the exhibit. (Click the Exhibit button.) You need to write a query that displays the following details: Total sales made by sales people, year, city, and country Sub totals only at the city level and country level A grand total of the sales amount

You are developing a database that will contain price information. You need to store the prices that include a fixed precision and a scale of six digits. Which data type should you use?

You administer a Microsoft SQL Server database that supports a banking transaction management application. You need to retrieve a list of account holders who live in cities that do not have a branch location. Which Transact-SQL query or queries should you use? (Each correct answer presents a complete solution. Choose all that apply.)

You have a database that contains the tables as shown in the exhibit. (Click the Exhibit button.) You have the following query: You need to recreate the query to meet the following requirements: Reference columns by using one-part names only. Sort aggregates by SalesTerritoryID, and then by ProductID. Order the results in descending order from SalesTerritoryID to ProductID. The solution must use the existing SELECT clause and FROM clause. Which code segment should you use? To answer, type the correct code in the answer area.

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button). You need to create a query for a report. The query must meet the following requirements: NOT use object delimiters. Return the most recent orders first. Use the first initial of the table as an alias. Return the most recent order date for each customer. Retrieve the last name of the person who placed the order. Return the order date in a column named MostRecentOrderDate that appears as the last column in the report. The solution must support the ANSI SQL-99 standard. Which code segment should you use? To answer, type the correct code in the answer area.

You have an XML schema collection named Sales.InvoiceSchema. You need to declare a variable of the XML type named XML1. The solution must ensure that XML1 is validated by using Sales.InvoiceSchema. Which code segment should you use? To answer, type the correct code in the answer area.

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.) You have an application named App1. You have a parameter named @Count that uses the int data type. App1 is configured to pass @Count to a stored procedure. You need to create a stored procedure named usp_Customers for Appl. Usp_Customers must meet the following requirements: NOT use object delimiters. Minimize sorting and counting. Return only the last name of each customer in alphabetical order. Return only the number of rows specified by the @Count parameter. The solution must NOT use BEGIN and END statements. Which code segment should you use?

You develop a Microsoft SQL Server 2012 database. You create a view from the Orders and OrderDetails tables by using the following definition. You need to ensure that users are able to modify data by using the view. What should you do?

You have a view that was created by using the following code: You need to create an inline table-valued function named Sales.fn_OrdersByTerritory, which must meet the following requirements: Accept the @T integer parameter. Use one-part names to reference columns. Filter the query results by SalesTerritoryID. Return the columns in the same order as the order used in OrdersByTerritoryView. Which code segment should you use?

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.) You deploy a new server that has SQL Server 2012 installed. You need to create a table named Sales. OrderDetails on the new server. Sales.OrderDetails must meet the following requirements: Write the results to a disk. Contain a new column named LineItemTotal that stores the product of ListPrice and Quantity for each row. The code must NOT use any object delimiters. The solution must ensure that LineItemTotal is stored as the last column in the table. Which code segment should you use?

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.) You need to create a view named uv_CustomerFullName to meet the following requirements: The code must NOT include object delimiters. The view must be created in the Sales schema. Columns must only be referenced by using one-part names. The view must return the first name and the last name of all customers. The view must prevent the underlying structure of the customer table from being changed. The view must be able to resolve all referenced objects, regardless of the user’s default schema. Which code segment should you use?

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.) You need to create a query that calculates the total sales of each OrderId from the Sales.Details table. The solution must meet the following requirements: Use one-part names to reference columns. Sort the order of the results from OrderId. NOT depend on the default schema of a user. Use an alias of TotalSales for the calculated ExtendedAmount. Display only the OrderId column and the calculated TotalSales column. Which code segment should you use?

You administer a Microsoft SQL Server 2012 database that contains a table named OrderDetail. You discover that the NCI_OrderDetail_CustomerID non-clustered index is fragmented. You need to reduce fragmentation. You need to achieve this goal without taking the index offline. Which Transact-SQL batch should you use?

You develop a Microsoft SQL Server 2012 database. The database is used by two web applications that access a table named Products. You want to create an object that will prevent the applications from accessing the table directly while still providing access to the required data. You need to ensure that the following requirements are met: Future modifications to the table definition will not affect the applications’ ability to access data. The new object can accommodate data retrieval and data modification. You need to achieve this goal by using the minimum amount of changes to the existing applications. What should you create for each application?

ou develop a Microsoft SQL Server 2012 database. You need to create a batch process that meets the following requirements: Returns a result set based on supplied parameters. Enables the returned result set to perform a join with a table. Which object should you use?

You develop a Microsoft SQL Server 2012 database. You need to create and call a stored procedure that meets the following requirements: Accepts a single input parameter for CustomerID. Returns a single integer to the calling application. Which Transact-SQL statement or statements should you use? (Each correct answer presents part of the solution. Choose all that apply.)

You develop a Microsoft SQL Server 2012 database that contains a table named Customers. The Customers table has the following definition: You need to create an audit record only when either the MobileNumber or HomeNumber column is updated. Which Transact-SQL query should you use?

You develop a Microsoft SQL Server 2012 database that has two tables named SavingAccounts and LoanAccounts. Both tables have a column named AccountNumber of the nvarchar data type. You use a third table named Transactions that has columns named TransactionId AccountNumber, Amount, and TransactionDate. You need to ensure that when multiple records are inserted in the Transactions table, only the records that have a valid AccountNumber in the SavingAccounts or LoanAccounts are inserted. Which Transact-SQL statement should you use?

You develop a Microsoft SQL Server 2012 database. You create a view that performs the following tasks: Joins 8 tables that contain up to 500,000 records each. Performs aggregations on 5 fields. The view is frequently used in several reports. You need to improve the performance of the reports. What should you do?

You are a database developer of a Microsoft SQL Server 2012 database. The database contains a table named Customers that has the following definition: You need to ensure that the CustomerId column in the Orders table contains only values that exist in the CustomerId column of the Customer table. Which Transact-SQL statement should you use?

You have three tables that contain data for dentists, psychiatrists, and physicians. You create a view that is used to look up their email addresses and phone numbers. The view has the following definition: You need to ensure that users can update only the phone numbers and email addresses by using this view. What should you do?

You administer a Microsoft SQL Server 2012 database named ContosoDb. The database contains a table named Suppliers and a column named IsActive in the Purchases schema. You create a new user named ContosoUser in ContosoDb. ContosoUser has no permissions to the Suppliers table. You need to ensure that ContosoUser can delete rows that are not active from Suppliers. You also need to grant ContosoUser only the minimum required permissions. Which Transact-SQL statement should you use?

You use a contained database named ContosoDb within a domain. You need to create a user who can log on to the ContosoDb database. You also need to ensure that you can port the database to different database servers within the domain without additional user account configurations. Which type of user should you create?

You administer a Microsoft SQL Server 2012 database that has multiple tables in the Sales schema. Some users must be prevented from deleting records in any of the tables in the Sales schema. You need to manage users who are prevented from deleting records in the Sales schema. You need to achieve this goal by using the minimum amount of administrative effort. What should you do?

You administer a Microsoft SQL Server 2012 database. The database contains a Product table created by using the following definition: You need to ensure that the minimum amount of disk space is used to store the data in the Product table. What should you do?

You generate a daily report according to the following query: You need to improve the performance of the query. What should you do?

You use Microsoft SQL Server 2012 to develop a database application. You need to implement a computed column that references a lookup table by using an INNER JOIN against another table. What should you do?

You use Microsoft SQL Server 2012 to develop a database application. You need to create an object that meets the following requirements: Takes an input variable Returns a table of values Cannot be referenced within a view Which object should you use?

You are a database developer for an application hosted on a Microsoft SQL Server 2012 server. The database contains two tables that have the following definitions: Global customers place orders from several countries. You need to view the country from which each customer has placed the most orders. Which Transact-SQL query do you use?

You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the top half of the students arranged by their average marks must be given a rank of 1 and the remaining students must be given a rank of 2. Which Transact-SQL query should you use?

You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the following requirements are met: Students must be ranked based on their average marks. If one or more students have the same average, the same rank must be given to these students. Consecutive ranks must be skipped when the same rank is assigned. Which Transact-SQL query should you use?

You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to retrieve the students who scored the highest marks for each subject along with the marks. Which Transact-SQL query should you use?

You develop a database for a travel application. You need to design tables and other database objects. You create a stored procedure. You need to supply the stored procedure with multiple event names and their dates as parameters. What should you do?

You are developing a database application by using Microsoft SQL Server 2012. An application that uses a database begins to run slowly. You discover that a large amount of memory is consumed by single-use dynamic queries. You need to reduce procedure cache usage from these statements without creating any additional indexes. What should you do?

You use Microsoft SQL Server 2012 to write code for a transaction that contains several statements. There is high contention between readers and writers on several tables used by your transaction. You need to minimize the use of the tempdb space. You also need to prevent reading queries from blocking writing queries. Which isolation level should you use?

Your database contains a table named SalesOrders. The table includes a DATETIME column named OrderTime that stores the date and time each order is placed. There is a non-clustered index on the OrderTime column. The business team wants a report that displays the total number of orders placed on the current day. You need to write a query that will return the correct results in the most efficient manner. Which Transact-SQL query should you use?

Your application contains a stored procedure for each country. Each stored procedure accepts an employee identification number through the @EmpID parameter. You plan to build a single process for each employee that will execute the stored procedure based on the country of residence. Which approach should you use?

You use Microsoft SQL Server 2012 to develop a database application. You create a stored procedure named dbo.ModifyData that can modify rows. You need to ensure that when the transaction fails, dbo. ModifyData meets the following requirements: Does not return an error Closes all opened transactions Which Transact-SQL statement should you use?

You are developing a database application by using Microsoft SQL Server 2012. An application that uses a database begins to run slowly. You discover that during reads, the transaction experiences blocking from concurrent updates. You need to ensure that throughout the transaction the data maintains the original version. What should you do?

You are developing a database application by using Microsoft SQL Server 2012. You have a query that runs slower than expected. You need to capture execution plans that will include detailed information on missing indexes recommended by the query optimizer. What should you do?

Your database contains tables named Products and ProductsPriceLog. The Products table contains columns named ProductCode and Price. The ProductsPriceLog table contains columns named ProductCode, OldPrice, and NewPrice. The ProductsPriceLog table stores the previous price in the OldPrice column and the new price in the NewPrice column. You need to increase the values in the Price column of all products in the Products table by 5 percent. You also need to log the changes to the ProductsPriceLog table. Which Transact-SQL query should you use?

A table named Profits stores the total profit made each year within a territory. The Profits table has columns named Territory, Year, and Profit. You need to create a report that displays the profits made by each territory for each year and its previous year. Which Transact-SQL query should you use?

You use Microsoft SQL Server 2012 database to develop a shopping cart application. You need to rotate the unique values of the ProductName field of a table-valued expression into multiple columns in the output. Which Transact-SQL operator should you use?

You administer a Microsoft SQL Server database that supports a shopping application. You need to retrieve a list of customers who live in territories that do not have a sales person. Which Transact- SQL query or queries should you use? (Each correct answer presents a complete solution. Choose all that apply.)

You are a database developer of a Microsoft SQL Server 2012 database. You are designing a table that will store Customer data from different sources. The table will include a column that contains the CustomerID from the source system and a column that contains the SourceID. A sample of this data is as shown in the following table. You need to ensure that the table has no duplicate CustomerID within a SourceID. You also need to ensure that the data in the table is in the order of SourceID and then CustomerID. Which Transact- SQL statement should you use?

You develop a Microsoft SQL Server 2012 database that contains tables named Employee and Person. The tables have the following definitions: You create a view named VwEmployee as shown in the following Transact-SQL statement. Users are able to use single INSERT statements or INSERT…SELECT statements into this view. You need to ensure that users are able to use a single statement to insert records into both Employee and Person tables by using the VwEmployee view. Which Transact-SQL statement should you use?

You develop a Microsoft SQL Server 2012 server database that supports an application. The application contains a table that has the following definition: CREATE TABLE Inventory (ItemID int NOT NULL PRIMARY KEY, ItemsInStore int NOT NULL, ItemsInWarehouse int NOT NULL) You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row. Which Transact-SQL statement should you use?

You develop a Microsoft SQL Server 2012 database that contains a heap named OrdersHistorical. You write the following Transact-SQL query: INSERT INTO OrdersHistorical SELECT * FROM CompletedOrders You need to optimize transaction logging and locking for the statement. Which table hint should you use?

You develop a Microsoft SQL Server 2012 server database that supports an application. The application contains a table that has the following definition: CREATE TABLE Inventory ( ItemID int NOT NULL PRIMARY KEY, ItemsInStore int NOT NULL, ItemsInWarehouse int NOT NULL) You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row. The new column is expected to be queried heavily, and you need to be able to index the column. Which Transact-SQL statement should you use?