Our company committed all versions of 070-762 Free Download Pdf practice materials attached with free update service. When 070-762 Free Download Pdf exam preparation has new updates, the customer services staff will send you the latest version. So we never stop the pace of offering the best services and 070-762 Free Download Pdf practice materials for you. You will come across almost all similar questions in the real 070-762 Free Download Pdf exam. Then the unfamiliar questions will never occur in the examination. So prepared to be amazed by our 070-762 Free Download Pdf learning guide!
MCP 070-762 Life needs to be colorful and meaningful.
Our company provides the free download service of 070-762 - Developing SQL Databases Free Download Pdf test torrent for all people. There are a lot of IT experts in our company, and they are responsible to update the contents every day. If you decide to buy our Valid Exam Cram 070-762 Materials study question, we can promise that we will send you the latest information every day.
The most notable feature of our 070-762 Free Download Pdf learning quiz is that they provide you with the most practical solutions to help you learn the exam points of effortlessly and easily, then mastering the core information of the certification course outline. Their quality of our 070-762 Free Download Pdf study guide is much higher than the quality of any other materials, and questions and answers of 070-762 Free Download Pdf training materials contain information from the best available sources.
Microsoft 070-762 Free Download Pdf - You can learn anytime, anywhere.
In modern society, we are busy every day. So the individual time is limited. The fact is that if you are determined to learn, nothing can stop you! You are lucky enough to come across our 070-762 Free Download Pdf exam materials. Our 070-762 Free Download Pdf study guide can help you improve in the shortest time. Even you do not know anything about the 070-762 Free Download Pdf exam. It absolutely has no problem. You just need to accept about twenty to thirty hours’ guidance of our 070-762 Free Download Pdf learning prep, it is easy for you to take part in the exam.
At the fork in the road, we always face many choices. When we choose job, job are also choosing us.
070-762 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 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 present the same scenario. Each question in this series contains a unique solution. Determine whether the solution meets the stated goals.
The Account table was created by using the following Transact-SQL statement:
There are more than 1 billion records in the Account table. The Account Number column uniquely identifies each account. The ProductCode column has 100 different values. The values are evenly distributed in the table. Table statistics are refreshed and up to date.
You frequently run the following Transact-SQL SELECT statements:
You must avoid table scans when you run the queries.
You need to create one or more indexes for the table.
Solution: You run the following Transact-SQL statement:
CREATE CLUSTERED INDEX PK_Account ON Account(ProductCode);
Does the solution meet the goal?
A. No
B. Yes
Answer: A
Explanation
We need an index on the productCode column as well.
References: https://msdn.microsoft.com/en-us/library/ms190457.aspx
PECB Lead-Cybersecurity-Manager - Don't you think it is quite amazing? Just come and have a try! You can imagine this is a great set of CIW 1D0-724 learning guide! In order to meet a wide range of tastes, our company has developed the three versions of the Huawei H12-811_V1.0 preparation questions, which includes PDF version, online test engine and windows software. IBM C1000-180 - We have made all efforts to update our product in order to help you deal with any change, making you confidently take part in the exam. We can promise that the Fortinet FCP_FGT_AD-7.4 prep guide from our company will help you prepare for your exam well.
Updated: May 28, 2022