Our Developing SQL Databases study questions are suitable for a variety of levels of users, no matter you are in a kind of cultural level, even if you only have high cultural level, you can find in our 70-762 Accurate Test training materials suitable for their own learning methods. So, for every user of our study materials are a great opportunity, a variety of types to choose from, more and more students also choose our 70-762 Accurate Test test guide, then why are you hesitating? As long as you set your mind to, as long as you have the courage to try a new life, yearning for life for yourself, then to choose our Developing SQL Databases study questions, we will offer you in a short period of time effective way to learn, so immediately began to revise it, don't hesitate, let go to do! Apart from the advantage of free renewal in one year, our 70-762 Accurate Test exam engine offers you constant discounts so that you can save a large amount of money concerning buying our 70-762 Accurate Test training materials. And we give these discount from time to time, so you should come and buy 70-762 Accurate Test learning guide more and you will get more rewards accordingly. After our 70-762 Accurate Test study guide update, our operating system will also send you a timely message to ensure that you will not miss a single message.
MCP 70-762 Please give us a chance to prove.
MCP 70-762 Accurate Test - Developing SQL Databases We will solve your problem as quickly as we can and provide the best service. No company in the field can surpass us. So we still hold the strong strength in the market.
With high-quality 70-762 Accurate Test guide materials and flexible choices of learning mode, they would bring about the convenience and easiness for you. Every page is carefully arranged by our experts with clear layout and helpful knowledge to remember. In your every stage of review, our 70-762 Accurate Test practice prep will make you satisfied.
Microsoft 70-762 Accurate Test - Need any help, please contact with us again!
In order to pass Microsoft certification 70-762 Accurate Test exam disposably, you must have a good preparation and a complete knowledge structure. Omgzlook can provide you the resources to meet your need.
Many people, especially the in-service staff, are busy in their jobs, learning, family lives and other important things and have little time and energy to learn and prepare the exam. But if you buy our 70-762 Accurate Test test torrent, you can invest your main energy on your most important thing and spare 1-2 hours each day to learn and prepare the exam.
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:
ISACA CISM - In today's competitive IT profession, if you want to stabilize your own position, you will have to prove your professional knowledge and technology level. Cisco 300-415 - For a better understanding of their features, please follow our website and try on them. Microsoft AI-900 - There a galaxy of talents in the 21st century, but professional IT talents not so many. Besides, we are punctually meeting commitments to offer help on SAP C-S4FCF-2023 study materials. Because of its popularity, you can use the Omgzlook Microsoft Salesforce B2C-Commerce-Developer exam questions and answers to pass the exam.
Updated: May 28, 2022