Omgzlook 70-762 Exam Sample exam preparation begins and ends with your accomplishing this credential goal. Although you will take each 70-762 Exam Sample online test one at a time - each one builds upon the previous. Remember that each 70-762 Exam Sample exam preparation is built from a common certification foundation.70-762 Exam Sample prepareation will provide the most excellent and simple method to pass your 70-762 Exam Sample Certification Exams on the first attempt. As long as you choose our dumps as review tool before the exam, you will have a happy result in 70-762 Exam Sample exam, which is perfectly obvious. Now hurry to download free demo, you will believe your choice can't be wrong. The (70-762 Exam Sample exam offered by Microsoft is regarded as one of the most promising certification exams in the field of.
Actually, 70-762 Exam Sample exam really make you anxious.
In such a way, you will get a leisure study experience as well as a doomed success on your coming 70-762 - Developing SQL Databases Exam Sample exam. Every version of Valid 70-762 Real Test Questions study materials that we provide to you has its own advantage: the PDF version has no equipment limited, which can be read anywhere; the online version can use on any electronic equipment there is network available; the software version can simulate the real Valid 70-762 Real Test Questions exam environment to let you have more real feeling to Valid 70-762 Real Test Questions real exam, besides the software version can be available installed on unlimited number devices.
By passing the exams multiple times on practice test software, you will be able to pass the real 70-762 Exam Sample test in the first attempt. With our 70-762 Exam Sample practice test software, you can simply assess yourself by going through the 70-762 Exam Sample practice tests. We highly recommend going through the 70-762 Exam Sample answers multiple times so you can assess your preparation for the 70-762 Exam Sample exam.
Microsoft 70-762 Exam Sample - So the proficiency of our team is unquestionable.
70-762 Exam Sample is the authentic study guides with the latest exam material which can help you solve all the difficulties in the actual test. Our 70-762 Exam Sample free demo is available for all of you. You will receive an email attached with the 70-762 Exam Sample training dumps within 5-10 minutes after completing purchase. Immediately download for the 70-762 Exam Sample study pdf is available for study with no time wasted. We have money refund policy to ensure your interest in case the failure of 70-762 Exam Sample actual test.
It will be easy for you to find your prepared learning material. If you are suspicious of our 70-762 Exam Sample exam questions, you can download the free demo from our official websites.
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 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
QUESTION NO: 5
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.
Our website always trying to bring great convenience to our candidates who are going to attend the Cisco 300-815 practice test. SAP C-THR94-2405 - Do not lose the wonderful chance to advance with times. Fortinet NSE7_OTS-7.2 - You can study any time anywhere you want. Therefore, you are able to get hang of the essential points in a shorter time compared to those who are not willing to use our Amazon SOA-C02 exam torrent. With the help of our Fortinet FCP_FML_AD-7.4 dumps collection, all level of candidates can grasp the key content of the real exam and solve the difficulty of Fortinet FCP_FML_AD-7.4 real questions easily.
Updated: May 28, 2022