70-762 Sheet certifications are thought to be the best way to get good jobs in the high-demanding market. There is a large range of 70-762 Sheet certifications that can help you improve your professional worth and make your dreams come true. Our 70-762 Sheet certification practice materials provide you with a wonderful opportunity to get your dream certification with confidence and ensure your success by your first attempt. Although the pass rate of our 70-762 Sheet study materials can be said to be the best compared with that of other exam tests, our experts all are never satisfied with the current results because they know the truth that only through steady progress can our 70-762 Sheet preparation braindumps win a place in the field of exam question making forever. Therefore, buying our 70-762 Sheet actual study guide will surprise you with high grades and you are more likely to get the certification easily. How can you have the chance to enjoy the study in an offline state? You just need to download the version that can work in an offline state, and the first time you need to use the version of our 70-762 Sheet quiz torrent online.
MCP 70-762 This is a fair principle.
By browsing this website, all there versions of our 70-762 - Developing SQL Databases Sheet pratice engine can be chosen according to your taste or preference. Only when you personally experience our Excellect 70-762 Pass Rate qualification test can you better feel the benefits of our products. Join us soon.
Up to now, there are three versions of 70-762 Sheet exam materials for your choice. So high-quality contents and flexible choices of 70-762 Sheet learning mode will bring about the excellent learning experience for you. Though the content of these three versions of our 70-762 Sheet study questions is the same, their displays are totally different.
Microsoft 70-762 Sheet - Why not have a try?
As is known to us, getting the newest information is very important for all people to pass the exam and get the certification in the shortest time. In order to help all customers gain the newest information about the 70-762 Sheet exam, the experts and professors from our company designed the best Developing SQL Databases test guide. The experts will update the system every day. If there is new information about the exam, you will receive an email about the newest information about the 70-762 Sheet learning dumps. We can promise that you will never miss the important information about the exam.
With our 70-762 Sheet exam questions, you will easily get the favor of executives and successfully enter the gates of famous companies. You will have higher wages and a better development platform.
70-762 PDF DEMO:
QUESTION NO: 1
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: 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
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
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
QUESTION NO: 5
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:
Our Dell DC0-200 study guide design three different versions for all customers. According to these ignorant beginners, the ISC CISSP-CN exam questions set up a series of basic course, by easy to read, with corresponding examples to explain at the same time, the Developing SQL Databases study question let the user to be able to find in real life and corresponds to the actual use of learned knowledge, deepened the understanding of the users and memory. CompTIA PT0-003 - The Internet is increasingly becoming a platform for us to work and learn, while many products are unreasonable in web design, and too much information is not properly classified. Therefore, getting the test Scrum PAL-I certification is of vital importance to our future employment. Dell D-DPS-A-01 - Now they have a better life.
Updated: May 28, 2022