The promotion is regular, so please hurry up to get the most cost-effective Microsoft prep exam dumps. 70-762 Sheet offers free demo for 70-762 Sheet real test. You can check out the interface, question quality and usability of our 70-762 Sheet practice exams before you decide to buy it. We have three versions of 70-762 Sheet learning materials available, including PDF, Software and APP online. The most popular one is PDF version of 70-762 Sheet study guide can be printed into papers so that you are able to write some notes or highlight the emphasis. You will free access to our test engine for review after payment.
MCP 70-762 Just add it to your cart.
As a key to the success of your life, the benefits that our 70-762 - Developing SQL Databases Sheet study braindumps can bring you are not measured by money. Omgzlook gives you unlimited online access to 70-762 Latest Study Materials certification practice tools. You can instantly download the 70-762 Latest Study Materials test engine and install it on your PDF reader, laptop or phone, then you can study it in the comfort of your home or while at office.
We can assure you the proficiency of our 70-762 Sheet exam prep. So this is a definitive choice, it means our 70-762 Sheet practice quiz will help you reap the fruit of success. To lead a respectable life, our specialists made a rigorously study of professional knowledge about this 70-762 Sheet exam.
Microsoft 70-762 Sheet - Trust us and you will get success for sure!
We have applied the latest technologies to the design of our 70-762 Sheet exam prep not only on the content but also on the displays. As a consequence you are able to keep pace with the changeable world and remain your advantages with our 70-762 Sheet training braindumps. Besides, you can consolidate important knowledge for you personally and design customized study schedule or to-do list on a daily basis. As long as you follow with our 70-762 Sheet study guide, you are doomed to achieve your success.
One more to mention, we can help you make full use of your sporadic time to absorb knowledge and information. We would like to provide our customers with different kinds of 70-762 Sheet practice guide to learn, and help them accumulate knowledge and enhance their ability.
70-762 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
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: 4
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: 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
IBM C1000-172 exam practice software allows you to practice on real IBM C1000-172 questions. IBM C1000-180 - This means with our products you can prepare for exams efficiently and at the same time you will get 100% success for sure. SAP C_TS4FI_2023 - You can totally rely on us. EMC D-PSC-MN-23 - You can download our app on your mobile phone. Omgzlook's study guides are your best ally to get a definite success in SAP C-BW4H-2404 exam.
Updated: May 28, 2022