Therefore, we have provided three versions of 70-762 Exam Prep practice guide: the PDF, the Software and the APP online. You can choose according to your actual situation. If you like to use computer to learn, you can use the Software and the APP online versions of the 70-762 Exam Prep exam questions. Besides, you can enjoy the best after-sales service. We believe that our 70-762 Exam Prep learning engine will meet your all needs. In addition, when you are in the real exam environment, you can learn to control your speed and quality in answering questions and form a good habit of doing exercise, so that you’re going to be fine in the Developing SQL Databases exam.
MCP 70-762 And we give some discounts on special festivals.
MCP 70-762 Exam Prep - Developing SQL Databases On the cutting edge of this line for over ten years, we are trustworthy company you can really count on. Learning knowledge is just like building a house, our Reliable 70-762 Braindumps Files training materials serve as making the solid foundation from the start with higher efficiency. Even if this is just the first time you are preparing for the exam, you can expect high grade.
You can just look at the hot hit on our website on the 70-762 Exam Prep practice engine, and you will be surprised to find it is very popular and so many warm feedbacks are written by our loyal customers as well. Our 70-762 Exam Prep study prep does not need any ads, their quality has propaganda effect themselves. As a result, the pass rate of our 70-762 Exam Prep exam braindumps is high as 98% to 100%.
Microsoft 70-762 Exam Prep - They will thank you so much.
Get the test 70-762 Exam Prep certification is not achieved overnight, we need to invest a lot of time and energy to review, and the review process is less a week or two, more than a month or two, or even half a year, so 70-762 Exam Prep exam questions are one of the biggest advantage is that it is the most effective tools for saving time for users. Users do not need to spend too much time on 70-762 Exam Prep questions torrent, only need to use their time pieces for efficient learning, the cost is about 20 to 30 hours, users can easily master the test key and difficulties of questions and answers of 70-762 Exam Prep prep guide, and in such a short time acquisition of accurate examination skills, better answer out of step, so as to realize high pass the qualification test, has obtained the corresponding qualification certificate.
As long as you encounter obstacles in the learning process on our 70-762 Exam Prep training guide, send us an email and we will solve it for you at the first time. Please believe that 70-762 Exam Prep learning materials will be your strongest backing from the time you buy our 70-762 Exam Prep practice braindumps to the day you pass the exam.
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.
To keep up with the newest regulations of the Huawei H19-315exam, our experts keep their eyes focusing on it. With the help of our Network Appliance NS0-700 exam questions, your review process will no longer be full of pressure and anxiety. If you have problems in the process of using our Tableau TCA-C01 study questions, as long as you contact us anytime and anywhere, we will provide you with remote assistance until that all the problems on our Tableau TCA-C01 exam braindumps are solved. As our company's flagship product, it has successfully helped countless candidates around the world to obtain the coveted SAP C_TS410_2022 certification. If you want to buy our EMC D-PM-IN-23 training engine, you must ensure that you have credit card.
Updated: May 28, 2022