70-762 Latest Study Guide materials are not only the more convenient way to pass exam, but at only little time and money you get can access to all of the exams from every certification vendor. Our 70-762 Latest Study Guide materials are more than a study materials, this is a compilation of the actual questions and answers from the 70-762 Latest Study Guide exam. Our brilliant materials are the product created by those professionals who have extensive experience of designing exam study material. And no matter which format of 70-762 Latest Study Guide study engine you choose, we will give you 24/7 online service and one year's free updates. Moreover, we can assure you a 99% percent pass rate. One of the main reasons for the failure may be that since practice and knowledge alone are not enough, people need to practice our Omgzlook 70-762 Latest Study Guide exam materials, otherwise they cannot escape reading.
MCP 70-762 So just open our websites in your computer.
Therefore, for expressing our gratitude towards the masses of candidates’ trust, our 70-762 - Developing SQL Databases Latest Study Guide exam torrent will also be sold at a discount and many preferential activities are waiting for you. So we are deeply moved by their persistence and trust. Your support and praises of our New 70-762 Exam Testking study guide are our great motivation to move forward.
How to get the test 70-762 Latest Study Guide certification in a short time, which determines enough qualification certificates to test our learning ability and application level. This may be a contradiction of the problem, we hope to be able to spend less time and energy to take into account the test 70-762 Latest Study Guide certification, but the qualification examination of the learning process is very wasted energy, so how to achieve the balance? Our 70-762 Latest Study Guide exam prep can be done with its high-efficient merit. Try it now!
Microsoft 70-762 Latest Study Guide - what a brighter future!
You have seen Omgzlook's Microsoft 70-762 Latest Study Guide exam training materials, it is time to make a choice. You can choose other products, but you have to know that Omgzlook can bring you infinite interests. Only Omgzlook can guarantee you 100% success. Omgzlook allows you to have a bright future. And allows you to work in the field of information technology with high efficiency.
Or you will forget the so-called good, although all kinds of digital device convenient now we read online, but many of us are used by written way to deepen their memory patterns. Our 70-762 Latest Study Guide prep guide can be very good to meet user demand in this respect, allow the user to read and write in a good environment continuously consolidate what they learned.
70-762 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 4
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: 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.
EMC D-ZT-DS-23 - Omgzlook is a professional website that providing IT certification training materials. We can proudly claim that you can successfully pass the exam just on the condition that you study with our SAP C-DBADM-2404 preparation materials for 20 to 30 hours. SAP C_ARSUM_2404 - Because it will make you pass the exam easily, since then rise higher and higher on your career path. IBM S2000-018 - If you do not own one or two kinds of skills, it is difficult for you to make ends meet in the modern society. So you can personally check the quality of the Omgzlook Microsoft SAP C_THR97_2405 exam training materials, and then decide to buy it.
Updated: May 28, 2022