Just study with our 70-762 Exam Vce Free exam braindumps 20 to 30 hours, and you will be able to pass the exam. In this age of anxiety, everyone seems to have great pressure. If you are better, you will have a more relaxed life. our 70-762 Exam Vce Free study materials will also save your time and energy in well-targeted learning as we are going to make everything done in order that you can stay focused in learning our 70-762 Exam Vce Free study materials without worries behind. We are so honored and pleased to be able to read our detailed introduction and we will try our best to enable you a better understanding of our 70-762 Exam Vce Free study materials better. So we solemnly promise the users, our products make every effort to provide our users with the latest learning materials.
MCP 70-762 You can get what you want!
MCP 70-762 Exam Vce Free - Developing SQL Databases Do not believe it, see it and then you will know. In a year after your payment, we will inform you that when the Valid Study Guide 70-762 Free exam guide should be updated and send you the latest version. Our company has established a long-term partnership with those who have purchased our Valid Study Guide 70-762 Free exam questions.
So the choice is important. Omgzlook's Microsoft 70-762 Exam Vce Free exam training materials are the best things to help each IT worker to achieve the ambitious goal of his life. It includes questions and answers, and issimilar with the real exam questions.
Microsoft 70-762 Exam Vce Free - You won't regret for your wise choice.
A variety of Omgzlook’ Microsoft dumps are very helpful for the preparation to get assistance in this regard. It is designed exactly according to the exams curriculum. The use of test preparation exam questions helps them to practice thoroughly. Rely on material of the free 70-762 Exam Vce Free braindumps online (easily available) sample tests, and resource material available on our website. These free web sources are significant for 70-762 Exam Vce Free certification syllabus. Our website provides the sufficient material regarding 70-762 Exam Vce Free exam preparation.
In order to make sure you have answered all questions, we have answer list to help you check. Then you can choose the end button to finish your exercises of the 70-762 Exam Vce Free study guide.
70-762 PDF DEMO:
QUESTION NO: 1
You create tables by using the following Transact-SQL statements:
Each customer may have multiple addresses but only one is the primary address.
You must plan a solution that meets the following requirements:
* Return both customers and address information.
* Return only the primary address of the customer.
* Allow updates of all customer information and address details with the exception of the identity columns and the IsActive column.
Which three actions should you perform is sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer:
QUESTION NO: 2
You have a reporting application that uses a table named Table1. You deploy a new batch update process to perform updates to Table1.
The environment is configured with the following properties:
* The database is configured with the default isolation setting.
* The application and process use the default transaction handling.
You observe the application cannot access any rows that are in use by the process.
You have the following requirements:
* Ensure the application is not blocked by the process.
* Ensure the application has a consistent view of the data
* Ensure the application does not read dirty data.
You need to resolve the issue and meet the requirements with the least amount of administrative effort.
What should you do?
A. Enable the database for the READ_COMITTED_SNAPSHOT isolation level.
B. Enable the database for the ALLOW_SNAPSHOT_ISOLATION isolation level. Modify the application and the update process for the SNAPSHOT isolation level.
C. Enable the database for the ALLOW_SNAPSHOT_ISOLATION isolation level. Modify the application for the SERIALIZABLE isolation level.
D. Enable the application for the WITH (NOLOCK) hint.
Answer: A
Explanation
Snapshot isolation must be enabled by setting the ALLOW_SNAPSHOT_ISOLATION ON database option before it is used in transactions. This activates the mechanism for storing row versions in the temporary database (tempdb).
READ COMMITTED is the default isolation level for SQL Server. It prevents dirty reads by specifying that statements cannot read data values that have been modified but not yet committed by other transactions. Other transactions can still modify, insert, or delete data between executions of individual statements within the current transaction, resulting in non-repeatable reads, or "phantom" data.
QUESTION NO: 3
You are reviewing the execution plans in the query plan cache. You observe the following:
- There are a large number of single use plans.
- There are a large number of simple execution plans that use multiple CPU cores.
You need to configure the server to optimize query plan execution.
Which two setting should you modify on the properties page for the Microsoft SQL Server instance?
To answer, select the appropriate settings in the answer area.
Answer:
Explanation
* Optimize for ad hoc workloads
The optimize for ad hoc workloads option is used to improve the efficiency of the plan cache for workloads that contain many single use ad hoc batches. When this option is set to 1, the Database
Engine stores a small compiled plan stub in the plan cache when a batch is compiled for the first time, instead of the full compiled plan. This helps to relieve memory pressure by not allowing the plan cache to become filled with compiled plans that are not reused.
* Cost Threshold for Parallelism
Use the cost threshold for parallelism option to specify the threshold at which Microsoft SQL Server creates and runs parallel plans for queries. SQL Server creates and runs a parallel plan for a query only when the estimated cost to run a serial plan for the same query is higher than the value set in cost threshold for parallelism. The cost refers to an estimated elapsed time in seconds required to run the serial plan on a specific hardware configuration.
5 means 5 seconds, but is is 5 seconds on a machine internal to Microsoft from some time in the
1990s.
There's no way to relate it to execution time on your current machine, so we treat it as a pure number now.
Raising it to 50 is a common suggestion nowadays, so that more of your simpler queries run on a single thread.
QUESTION NO: 4
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You have a table that has a clustered index and a nonclustered index. The indexes use different columns from the table. You have a query named Users report that Query1 takes a long time to report results. You run and review the following statistics for an index seek operation:
You need to resolve the performance issue.
Solution: You rebuild the clustered index.
Does the solution meet the goal?
A. No
B. Yes
Answer: A
Explanation
The query uses the nonclustered index, so improving the clustered index will not help.
We should update statistics for the nonclustered index.
QUESTION NO: 5
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 the series.
You have a database named Sales that contains the following database tables. Customer, Order, and
Products.
The Products table and the order table shown in the following diagram.
The Customer table includes a column that stores the date for the last order that the customer placed.
You plan to create a table named Leads. The Leads table is expected to contain approximately 20,000 records.
Storage requirements for the Leads table must be minimized.
You need to begin to modify the table design to adhere to third normal form.
Which column should you remove for each table? To answer? drag the appropriate column names to the correct locations. Each column name 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.
Answer:
Explanation
In the Products table the SupplierName is dependent on the SupplierID, not on the ProductID.
In the Orders table the ProductName is dependent on the ProductID, not on the OrderID.
Note:
A table is in third normal form when the following conditions are met:
* It is in second normal form.
* All non-primary fields are dependent on the primary key.
Second normal form states that it should meet all the rules for First 1Normnal Form and there must be no partial dependencies of any of the columns on the primary key.
First normal form (1NF) sets the very basic rules for an organized database:
* Define the data items required, because they become the columns in a table. Place related data items in a table.
* Ensure that there are no repeating groups of data.
* Ensure that there is a primary key.
References: https://www.tutorialspoint.com/sql/third-normal-form.htm
BCS TTA-19 - We promise during the process of installment and payment of our Developing SQL Databases prep torrent, the security of your computer or cellphone can be guaranteed, which means that you will be not afraid of virus intrusion and personal information leakage. When you find it hard for you to learn on computers, you can learn the printed materials of the Microsoft MD-102 study materials. Dell D-DPS-A-01 - Don’t hesitate any more. The SAP C_C4H51_2405 certification exam training tools contains the latest studied materials of the exam supplied by IT experts. To pass the exam in limited time, you will find it as a piece of cake with the help of our CompTIA 220-1102 study engine!
Updated: May 28, 2022