Free 70-762 Developing SQL Databases exam questions

1. DRAG DROP

You are evaluating the performance of a database environment.

You must avoid unnecessary locks and ensure that lost updates do not occur.

You need to choose the transaction isolation level for each data scenario.

Which isolation level should you use for each scenario? To answer, drag the appropriate isolation levels to the correct scenarios. Each isolation may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

2. DRAG DROP

You have two database tables. Table1 is a partitioned table and Table 2 is a non-partitioned table.

Users report that queries take a long time to complete. You monitor queries by using Microsoft SQL Server Profiler. You observe lock escalation for Table1 and Table 2.

You need to allow escalation of Table1 locks to the partition level and prevent all lock escalation for Table2.

Which Transact-SQL statement should you run for each table? To answer, drag the appropriate Transact-SQL statements to the correct tables. Each command may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

3. DRAG DROP

You have a database that contains three encrypted store procedures named dbo.Proc1, dbo.Proc2 and dbo.Proc3. The stored procedures include INSERT, UPDATE, DELETE and BACKUP DATABASE statements.

You have the following requirements:

* You must run all the stored procedures within the same transaction.

* You must automatically start a transaction when stored procedures include DML statements.

* You must not automatically start a transaction when stored procedures include DDL statements.

You need to run all three stored procedures.

Which four Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments to the answer area and arrange then in the correct order.

4. HOTSPOT

You are profiling a frequently used database table named UserEvents. The READ_COMMITED_SNAPSHOT database option is set to OFF.

In the trace results, you observe that lock escalation occurred for one stored procedure even though the number of locks in the database did not exceed memory or configuration thresholds. Events details are provided in the following table:

You need to modify the uspDeleteEvents stored procedure to avoid lock escalation.

How should you modify the stored procedure? To answer, select the appropriate Transact-SQL segments in the answer area.

5. You have a database that is experiencing deadlock issues when users run queries.

You need to ensure that all deadlocks are recorded in XML format.

What should you do?

6. You are developing an application that connects to a database.

The application runs the following jobs:

The READ_COMMITTED_SNAPSHOT database option is set to OFF, and auto-content is set to ON. Within the stored procedures, no explicit transactions are defined.

If JobB starts before JobA, it can finish in seconds. If JobA starts first, JobB takes a long time to complete.

You need to use Microsoft SQL Server Profiler to determine whether the blocking that you observe in JobB is caused by locks acquired by JobA.

Which trace event class in the Locks event category should you use?

A. LockAcquired

B. LockCancel

C. LockDeadlock

D. LockEscalation

7. HOTSPOT

You have a database that contains both disk-based and memory-optimized tables.

You need to create two modules. The modules must meet the requirements described in the following table.

Which programming object should you use for each module? To answer, select the appropriate object types in the answer area.

8. Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transacr-SQL statement:

You run the spUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

You must update the design of the Customer table to meet the following requirements.

* You must be able to store up to 50 accounts for each customer.

* Users must be able to retrieve customer information by supplying an account number.

* Users must be able to retrieve an account number by supplying customer information.

You need to implement the design changes while minimizing data redundancy.

What should you do?

9. DRAG DROP

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transacr-SQL statement:

You run the spUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

You must update the design of the Customer table to meet the following requirements.

* You must be able to store up to 50 accounts for each customer.

* Users must be able to retrieve customer information by supplying an account number.

* Users must be able to retrieve an account number by supplying customer information.

Which three Transact_SQL segments should you use to develop the solution? To answer, move the appropriate code blocks from the list of code blocks to the answer area and arrange them in the correct order.

10. DRAG DROP

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transact-SQL statement:

You run the spUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

When a procedure calls spDeleteCustAcctRelationship, if the calling stored procedures has already started an active transaction, all the detections made by the spDeleteCustAccRelationship stored procedure must be committed by the caller; otherwise changes must be committed within the spDeleteCustAcctRelationship stored procedure.

If any error occurs during the delete operation, only the deletes made by the soDeleteCustACCTRelationships stored procedure must be rolled back and the status must be updated.

You need to complete the stored procedure to ensure all the requirements are met.

How should you complete the procedure? To answer, drag the Transact-SQL segments to the correct location. Each transact-SQL segment may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

11. DRAG DROP

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transact-SQL statement:

You run the spUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

You need to create Website Customer.

How should you complete the view definition? To answer, drag the appropriate Transact-SQL segments to the correct locations, Each Transact-SQL segment may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

NOTE: Each correct selection is worth one point.

12. DRAG DROP

Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transact-SQL statement:

You run the spUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

You need to create Sales.FemaleCustomers.

How should you complete the view definition? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact_SQL segment may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.

13. Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.

You have a database named DB1 that contains the following tables: Customer, CustomerToAccountBridge, and CustomerDetails. The three tables are part of the Sales schema. The database also contains a schema named Website. You create the Customer table by running the following Transact-SQL statement:

The value of the CustomerStatus column is equal to one for active customers. The value of the Account1Status and Account2Status columns are equal to one for active accounts. The following table displays selected columns and rows from the Customer table.

You plan to create a view named Website.Customer and a view named Sales.FemaleCustomers.

Website.Customer must meet the following requirements:

* Allow users access to the CustomerName and CustomerNumber columns for active customers.

* Allow changes to the columns that the view references. Modified data must be visible through the view.

* Prevent the view from being published as part of Microsoft SQL Server replication.

Sales.Female.Customers must meet the following requirements:

* Allow users access to the CustomerName, Address, City, State and PostalCode columns.

* Prevent changes to the columns that the view references.

* Only allow updates through the views that adhere to the view filter.

You have the following stored procedures: spDeleteCustAcctRelationship and spUpdateCustomerSummary. The spUpdateCustomerSummary stored procedure was created by running the following Transacr-SQL statement:

You run the uspUpdateCustomerSummary stored procedure to make changes to customer account summaries. Other stored procedures call the spDeleteCustAcctRelationship to delete records from the CustomerToAccountBridge table.

When you start uspUpdateCustomerSummary, there are no active transactions. The procedure fails at line 09 due to a CHECK constraint violation on the TotalDepositAccountCount column.

What is the impact of the stored procedure on the CustomerDetails table?

14. Note: This question is part of a series of questions that use the same answer choices. An answer choice may be correct for more than one question on the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.

You work on an OLTP database that has no memory-optimized file group defined.

You have a table named tblTransaction that is persisted on disk and contains the information described in the following table:

Users report that the following query takes a long time to complete.

You need to create an index that:

-improves the query performance

-does not impact the existing index

-minimizes storage size of the table (inclusive of index pages).

What should you do?

15. Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question os independent of the other questions in this series. Information and details provided in a question apply only to that question.

You have a database named DB1. There is no memory-optimized filegroup in the database.

You run the following query:

The following image displays the execution plan the query optimizer generates for this query:

Users frequently run the same query with different values for the local variable @lastName. The table named Person is persisted on disk.

You need to create an index on the Person.Person table that meets the following requirements:

- All users must be able to benefit from the index.

- FirstName must be added to the index as an included column.

What should you do?

16. Note: The question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other question in the series. Information and details provided in a question apply only to that question.

You have a reporting database that includes a non-partitioned fact table named Fact_Sales. The table is persisted on disk.

Users report that their queries take a long time to complete. The system administrator reports that the table takes too much space in the database. You observe that there are no indexes defined on the table, and many columns have repeating values.

You need to create the most efficient index on the table, minimize disk storage and improve reporting query performance.

What should you do?

17. Note: The question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other question in the series. Information and details provided in a question apply only to that question.

You have a database named DB1. The database does not use a memory-optimized filegroup. The database contains a table named Table1. The table must support the following workloads:

You need to add the most efficient index to support the new OLTP workload, while not deteriorating the existing Reporting query performance.

What should you do?

18. Note: The question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other question in the series. Information and details provided in a question apply only to that question.

You have a database named DB1. The database does not have a memory optimized filegroup.

You create a table by running the following Transact-SQL statement:

The table is currently used for OLTP workloads. The analytics user group needs to perform real-time operational analytics that scan most of the records in the table to aggregate on a number of columns.

You need to add the most efficient index to support the analytics workload without changing the OLTP application.

What should you do?

19. DRAG DROP

You are analyzing the performance of a database environment.

You suspect there are several missing indexes in the current database.

You need to return a prioritized list of the missing indexes on the current database.

How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segment may be used once, more than once or not at all. You may need to drag the split bar between panes or scroll to view content.

20. DRAG DROP

You are monitoring a Microsoft Azure SQL Database.

The database is experiencing high CPU consumption.

You need to determine which query uses the most cumulative CPU.

How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segment may be used once, more than one or not at all. You may need to drag the split bar between panes or scroll to view content.