If you compare the test to a battle, the examinee is like a brave warrior, and the good 70-762 Exam Fee learning materials are the weapon equipments, but if you want to win, then it is essential for to have the good 70-762 Exam Fee study guide. Our 70-762 Exam Fee exam questions are of high quality which is carefully prepared by professionals based on the changes in the syllabus and the latest development in practice. With a total new perspective, 70-762 Exam Fee study materials have been designed to serve most of the office workers who aim at getting an exam certification. Moreover, 70-762 Exam Fee exam questions have been expanded capabilities through partnership with a network of reliable local companies in distribution, software and product referencing for a better development. Our brand has marched into the international market and many overseas clients purchase our 70-762 Exam Fee exam dump online.
MCP 70-762 They are quite convenient.
MCP 70-762 Exam Fee - Developing SQL Databases With the rapid development of the world economy, it has been universally accepted that a growing number of people have longed to become the social elite. We have the confidence and ability to make you finally have rich rewards. Our 70-762 Reliable Exam Cram Pdf learning materials provide you with a platform of knowledge to help you achieve your wishes.
It means you can try our demo and you do not need to spend any money. According to the survey of our company, we have known that a lot of people hope to try the 70-762 Exam Fee test training materials from our company before they buy the study materials, because if they do not have a try about our study materials, they cannot sure whether the study materials from our company is suitable for them to prepare for the exam or not. So a lot of people long to know the 70-762 Exam Fee study questions in detail.
Microsoft 70-762 Exam Fee - You can consult our staff online.
The most interesting thing about the learning platform is not the number of questions, not the price, but the accurate analysis of each year's exam questions. Our 70-762 Exam Fee guide dump through the analysis of each subject research, found that there are a lot of hidden rules worth exploring, this is very necessary, at the same time, our 70-762 Exam Fee training materials have a super dream team of experts, so you can strictly control the proposition trend every year. In the annual examination questions, our 70-762 Exam Fee study questions have the corresponding rules to summarize, and can accurately predict this year's test hot spot and the proposition direction. This allows the user to prepare for the test full of confidence.
Providing various and efficient 70-762 Exam Fee exam preparation with reasonable prices and discounts, satisfy your need with considerate after-sales services and we give back all your refund entirely once you fail the 70-762 Exam Fee test unluckily. All those features roll into one.
70-762 PDF DEMO:
QUESTION NO: 1
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: 2
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: 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
Database users report that SELECT statements take a long time to return results. You run the following Transact-SQL statement:
You need to create one nonclustered covering index that contains all of the columns in the above table. You must minimize index key size.
Which Transact-SQL statement should you run?
A. CREATE NONCLUSTERED INDEX IX_User ON Users (UserStatus, CountryCode) INCLUDE
(UserName);
B. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus, UserName);
C. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus) INCLUDE
(UserName);
D. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserName);
Answer: C
Explanation
https://docs.microsoft.com/en-us/sql/relational-databases/indexes/create-indexes-with-included- columns
QUESTION NO: 5
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.
Our VMware 3V0-32.23 learning reference files not only provide a single learning environment for users, but also create a learning atmosphere like home, where you can learn and communicate easily. And you will find that passing the Lpi 306-300 exam is as easy as pie. SAP C_TS422_2023 - Your exam results will help you prove this! Such a valuable acquisition priced reasonably of our Microsoft AZ-801 study guide is offered before your eyes, you can feel assured to take good advantage of. Our SAP C_TS462_2023 test torrent is of high quality, mainly reflected in the pass rate.
Updated: May 28, 2022