Today, in an era of fierce competition, how can we occupy a place in a market where talent is saturated? The answer is a certificate. What the certificate main? All kinds of the test 70-762 Test Review certification, prove you through all kinds of qualification certificate, it is not hard to find, more and more people are willing to invest time and effort on the 70-762 Test Review exam guide, because get the test 70-762 Test Review certification is not an easy thing, so, a lot of people are looking for an efficient learning method. And here, fortunately, you have found the 70-762 Test Review exam braindumps, a learning platform that can bring you unexpected experiences. The product of Omgzlook not only can 100% guarantee you to pass the exam, but also can provide you a free one-year update service. If you choose Omgzlook, success is not far away for you. The functions of the software version are very special.
MCP 70-762 Everyone has their own dreams.
Most of the experts have been studying in the professional field for many years and have accumulated much experience in our 70-762 - Developing SQL Databases Test Review practice questions. Why? Because you have Omgzlook's Microsoft Test 70-762 Valid exam training materials. Omgzlook's Microsoft Test 70-762 Valid exam training materials are the best training materials for IT certification.
Nowadays the requirements for jobs are higher than any time in the past. The job-hunters face huge pressure because most jobs require both working abilities and profound major knowledge. Passing 70-762 Test Review exam can help you find the ideal job.
Microsoft 70-762 Test Review - If you fail, don't forget to learn your lesson.
All exam materials in 70-762 Test Review learning materials contain PDF, APP, and PC formats. They have the same questions and answers but with different using methods. If you like to take notes randomly according to your own habits while studying, we recommend that you use the PDF format of our 70-762 Test Review study guide. And besides, you can take it with you wherever you go for it is portable and takes no place. So the PDF version of our 70-762 Test Review exam questions is convenient.
Don't hesitate to get help from our customer assisting. Downloading the 70-762 Test Review free demo doesn't cost you anything and you will learn about the pattern of our practice exam and the accuracy of our 70-762 Test Review test answers.
70-762 PDF DEMO:
QUESTION NO: 1
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: 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
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
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 use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in the series.
You have a database named Sales that contains the following database tables. Customer, Order, and
Products.
The Products table and the order table shown in the following diagram.
The Customer table includes a column that stores the date for the last order that the customer placed.
You plan to create a table named Leads. The Leads table is expected to contain approximately 20,000 records.
Storage requirements for the Leads table must be minimized.
You need to begin to modify the table design to adhere to third normal form.
Which column should you remove for each table? To answer? drag the appropriate column names to the correct locations. Each column name may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
Explanation
In the Products table the SupplierName is dependent on the SupplierID, not on the ProductID.
In the Orders table the ProductName is dependent on the ProductID, not on the OrderID.
Note:
A table is in third normal form when the following conditions are met:
* It is in second normal form.
* All non-primary fields are dependent on the primary key.
Second normal form states that it should meet all the rules for First 1Normnal Form and there must be no partial dependencies of any of the columns on the primary key.
First normal form (1NF) sets the very basic rules for an organized database:
* Define the data items required, because they become the columns in a table. Place related data items in a table.
* Ensure that there are no repeating groups of data.
* Ensure that there is a primary key.
References: https://www.tutorialspoint.com/sql/third-normal-form.htm
We often ask, what is the purpose of learning? Why should we study? Why did you study for EMC D-DP-FN-23exam so long? As many people think that, even if one day we forget the formula for the area of a triangle, we can still live very well, but if it were not for the knowledge of learning EMC D-DP-FN-23 exam and try to obtain certification, how can we have the opportunity to good to future life? So, the examination is necessary, only to get the test EMC D-DP-FN-23 certification, get a certificate, to prove better us, to pave the way for our future life. So we prepared top SAP C-THR96-2405 pdf torrent including the valid questions and answers written by our certified professionals for you. With our Cisco 300-730 practice engine for 20 to 30 hours, we can claim that you will be quite confident to attend you exam and pass it for sure for we have high pass rate as 98% to 100% which is unmatched in the market. You can use the HP HPE7-A02 online test off-line, while you should run it in the network environment. Splunk SPLK-1003 - The clients can choose the version which supports their equipment on their hands to learn.
Updated: May 28, 2022