You can choose one of version of our 070-762 Questions Ebook study guide as you like.There are three versions of our 070-762 Questions Ebook exam dumps. All of the content are the absolute same, just in different ways to use. Therefore, you do not worry about that you get false information of 070-762 Questions Ebook guide materials. We sincerely recommend our 070-762 Questions Ebook preparation exam for our years’ dedication and quality assurance will give you a helping hand on the 070-762 Questions Ebook exam. There are so many advantages of our 070-762 Questions Ebook study materials you should spare some time to get to know. It is apparent that a majority of people who are preparing for the 070-762 Questions Ebook exam would unavoidably feel nervous as the exam approaching, If you are still worried about the coming exam, since you have clicked into this website, you can just take it easy now, I can assure you that our company will present the antidote for you--our 070-762 Questions Ebook learning materials.
MCP 070-762 It is very easy and convenient to use and find.
As the employment situation becoming more and more rigorous, it’s necessary for people to acquire more 070-762 - Developing SQL Databases Questions Ebook skills and knowledge when they are looking for a job. Being dedicated to these practice materials painstakingly and pooling useful points into our Study 070-762 Material exam materials with perfect arrangement and scientific compilation of messages, our Study 070-762 Material practice materials can propel the exam candidates to practice with efficiency. Our experts are constantly looking for creative way to immortalize our Study 070-762 Material actual exam in this line.
There is an old saying goes, good memory is inferior to sodden ability to write, so we believe that it is a highly productive way for you to memory the knowledge point and review the reference books more effectively. Besides our 070-762 Questions Ebook exam torrent support free demo download, as we mentioned before, it is an ideal way for you to be fully aware of our 070-762 Questions Ebook prep guide and then purchasing them if suitable and satisfactory. There is no doubt that among our three different versions of 070-762 Questions Ebook guide torrent, the most prevalent one is PDF version, and this is particularly suitable and welcomed by youngsters.
Come to study our Microsoft 070-762 Questions Ebook learning materials.
If you buy the Software or the APP online version of our 070-762 Questions Ebook study materials, you will find that the timer can aid you control the time. Once it is time to submit your exercises, the system of the 070-762 Questions Ebook preparation exam will automatically finish your operation. After a several time, you will get used to finish your test on time. If you are satisfied with our 070-762 Questions Ebook training guide, come to choose and purchase.
Our 070-762 Questions Ebook exam materials are famous among candidates. Once they need to prepare an exam, our 070-762 Questions Ebook study materials are their first choice.
070-762 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 4
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: 5
Note: This question is part of a series of questions that present the same scenario. Each question in this series contains a unique solution. Determine whether the solution meets the stated goals.
The Account table was created by using the following Transact-SQL statement:
There are more than 1 billion records in the Account table. The Account Number column uniquely identifies each account. The ProductCode column has 100 different values. The values are evenly distributed in the table. Table statistics are refreshed and up to date.
You frequently run the following Transact-SQL SELECT statements:
You must avoid table scans when you run the queries.
You need to create one or more indexes for the table.
Solution: You run the following Transact-SQL statement:
CREATE CLUSTERED INDEX PK_Account ON Account(ProductCode);
Does the solution meet the goal?
A. No
B. Yes
Answer: A
Explanation
We need an index on the productCode column as well.
References: https://msdn.microsoft.com/en-us/library/ms190457.aspx
We sincerely hope that you can pay more attention to our Dell D-RPVM-A-01 study questions. IBM S2000-024 - With meticulous care design, our study materials will help all customers pass their exam in a shortest time. Our SAP P_BTPA_2408 learning questions will inspire your motivation to improve yourself. WGU Web-Development-Applications - Everything that appears in our products has been inspected by experts. Our payment system will automatically delete your payment information once you finish paying money for our Cisco 700-240 exam questions.
Updated: May 28, 2022