By virtue of our 70-762 Sheets practice materials, many customers get comfortable experiences of Whole Package of Services and of course passing the 70-762 Sheets study guide successfully. Our company conducts our business very well rather than unprincipled company which just cuts and pastes content from others and sell them to exam candidates.All candidate are desperately eager for useful 70-762 Sheets actual exam, our products help you and we are having an acute shortage of efficient 70-762 Sheets exam questions. So our experts highlights the new type of questions and add updates into the 70-762 Sheets practice materials, and look for shifts closely when them take place. At the same time, as we can see that the electronic devices are changing our life day by day, our 70-762 Sheets study questions are also developed to apply all kinds of eletronic devices. Yes you read it right, if our 70-762 Sheets exam braindumps didn’t help you pass, we will issue a refund - no other questions asked.
You can ask anyone who has used 70-762 Sheets actual exam.
And we will give you 100% success guaranteed on the 70-762 - Developing SQL Databases Sheets training guide. In short, you will find the convenience and practicality of our New Test Camp 70-762 Materials quiz guide in the process of learning. We will also continue to innovate and improve functions to provide you with better services.
We are convinced that our 70-762 Sheets exam questions can help you gain the desired social status and thus embrace success. The competition in today's society is the competition of talents. Can you survive and be invincible in a highly competitive society? Can you gain a foothold in such a complex society? If your answer is "no", that is because your ability is not strong enough.
Our Microsoft 70-762 Sheets exam questions are your best choice.
According to the survey, the average pass rate of our candidates has reached 99%. High passing rate must be the key factor for choosing, which is also one of the advantages of our 70-762 Sheets real study dumps. Our 70-762 Sheets exam questions have been widely acclaimed among our customers, and the good reputation in industry prove that choosing our study materials would be the best way for you, and help you gain the 70-762 Sheets certification successfully. With about ten years’ research and development we still keep updating our 70-762 Sheets prep guide, in order to grasp knowledge points in accordance with the exam, thus your study process would targeted and efficient.
Our 70-762 Sheets learning questions engage our working staff in understanding customers’ diverse and evolving expectations and incorporate that understanding into our strategies, thus you can 100% trust our 70-762 Sheets exam engine. And our professional 70-762 Sheets study materials determine the high pass rate.
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:
Being subjected to harsh tests of market, our Microsoft AZ-120 exam questions are highly the manifestation of responsibility carrying out the tenets of customer oriented. According to the research statistics, we can confidently tell that 99% candidates have passed the Microsoft PL-900-KR exam. If you are unfamiliar with our EMC D-SNC-DY-00 practice materials, please download the free demos for your reference, and to some unlearned exam candidates, you can master necessities by our EMC D-SNC-DY-00 training prep quickly. But our Fortinet NSE7_SDW-7.2 exam questions have made it. If the user finds anything unclear in the Dell D-DPS-A-01 exam questions exam, we will send email to fix it, and our team will answer all of your questions related to the Dell D-DPS-A-01 actual exam.
Updated: May 28, 2022