Users who use our 70-762 Cost Effective Dumps real questions already have an advantage over those who don't prepare for the exam. Our study materials can let users the most closed to the actual test environment simulation training, let the user valuable practice effectively on 70-762 Cost Effective Dumps practice guide, thus through the day-to-day practice, for users to develop the confidence to pass the exam. For examination, the power is part of pass the exam but also need the candidate has a strong heart to bear ability, so our 70-762 Cost Effective Dumps learning dumps through continuous simulation testing, let users less fear when the real test, better play out their usual test levels, can even let them photographed, the final pass exam. If you want to inspect the quality of our 70-762 Cost Effective Dumps study dumps, you can download our free dumps from Omgzlook and go through them. The unique questions and answers will definitely impress you with the information packed in them and it will help you to take a decision in their favor. If you know 70-762 Cost Effective Dumps training materials through acquaintance introduction, then you must also know the advantages of 70-762 Cost Effective Dumps.
MCP 70-762 Come to try and you will be satisfied!
We believe you will also competent enough to cope with demanding and professorial work with competence with the help of our 70-762 - Developing SQL Databases Cost Effective Dumps exam braindumps. So please take it easy before and after the purchase and trust that our Valid Study 70-762 Questions Ppt study materials carry no virus. To let you be familiar with our product, we list the features and advantages of the Valid Study 70-762 Questions Ppt study materials as follow.
You can find the latest version of 70-762 Cost Effective Dumps practice guide in our website and you can practice 70-762 Cost Effective Dumps study materials in advance correctly and assuredly. The following passages are their advantages for your information If you try to free download the demos on the website, and you will be amazed by our excellent 70-762 Cost Effective Dumps preparation engine.
Our Microsoft 70-762 Cost Effective Dumps exam materials have plenty of advantages.
The software version of our 70-762 Cost Effective Dumps study engine is designed to simulate a real exam situation. You can install it to as many computers as you need as long as the computer is in Windows system. And our software of the 70-762 Cost Effective Dumps training material also allows different users to study at the same time. It's economical for a company to buy it for its staff. Friends or workmates can also buy and learn with our 70-762 Cost Effective Dumps practice guide together.
Repeated attempts will sharpen your minds. Maybe our 70-762 Cost Effective Dumps learning quiz is suitable for you.
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
Microsoft DP-600 - Developing SQL Databases exam tests are a high-quality product recognized by hundreds of industry experts. SAP C-TS414-2023 - After all, you have to make money by yourself. Because the most clients may be busy in their jobs or other significant things, the time they can spare to learn our Palo Alto Networks PCNSE learning guide is limited and little. Microsoft PL-400-KR - Please make a decision quickly. What the certificate main? All kinds of the test Huawei H19-319_V2.0 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 Huawei H19-319_V2.0 exam guide, because get the test Huawei H19-319_V2.0 certification is not an easy thing, so, a lot of people are looking for an efficient learning method.
Updated: May 28, 2022