You can consult our staff online. After the consultation, your doubts will be solved and you will choose the 70-762 Cert Exam learning materials that suit you. Once you have any questions about our 70-762 Cert Exam actual exam, you can contact our staff online or send us an email. The most interesting thing about the learning platform is not the number of questions, not the price, but the accurate analysis of each year's exam questions. Our 70-762 Cert Exam guide dump through the analysis of each subject research, found that there are a lot of hidden rules worth exploring, this is very necessary, at the same time, our 70-762 Cert Exam training materials have a super dream team of experts, so you can strictly control the proposition trend every year. Providing various and efficient 70-762 Cert Exam exam preparation with reasonable prices and discounts, satisfy your need with considerate after-sales services and we give back all your refund entirely once you fail the 70-762 Cert Exam test unluckily.
MCP 70-762 Your exam results will help you prove this!
Such a valuable acquisition priced reasonably of our 70-762 - Developing SQL Databases Cert Exam study guide is offered before your eyes, you can feel assured to take good advantage of. So our product is a good choice for you. Choosing our Exam 70-762 Preview study tool can help you learn better.
As to the rapid changes happened in this 70-762 Cert Exam exam, experts will fix them and we assure your 70-762 Cert Exam exam simulation you are looking at now are the newest version. Materials trends are not always easy to forecast on our study guide, but they have predictable pattern for them by ten-year experience who often accurately predict points of knowledge occurring in next 70-762 Cert Exam preparation materials.
Microsoft 70-762 Cert Exam - As we all know, time and tide waits for no man.
Time and tide wait for no man, if you want to save time, please try to use our 70-762 Cert Exam preparation exam, it will cherish every minute of you and it will help you to create your life value. With the high pass rate of our 70-762 Cert Exam exam questions as 98% to 100% which is unbeatable in the market, we are proud to say that we have helped tens of thousands of our customers achieve their dreams and got their 70-762 Cert Exam certifications. Join us and you will be one of them.
Our printable 70-762 Cert Exam real exam dumps, online engine and windows software are popular among candidates. So you will never feel bored when studying on our 70-762 Cert Exam study tool.
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 Microsoft AZ-305-KR certification questions are close to the real exam and the questions and answers of the test bank cover the entire syllabus of the real exam and all the important information about the exam. The high passing rate of Lpi 701-100 exam training also requires your efforts. Pegasystems PEGACPBA88V1 - Now it is time for you to take an exam for getting the certification. Pegasystems PEGACPLSA88V1 - As a thriving multinational company, we are always committed to solving the problem that our customers may have. In the future, our Microsoft AZ-801 study materials will become the top selling products.
Updated: May 28, 2022