Our 70-762 Pdf practice dumps is high quality product revised by hundreds of experts according to the changes in the syllabus and the latest developments in theory and practice, it is focused and well-targeted, so that each student can complete the learning of important content in the shortest time. With 70-762 Pdf training prep, you only need to spend 20 to 30 hours of practice before you take the 70-762 Pdf exam. There is plenty of skilled and motivated staff to help you obtain the Developing SQL Databases exam certificate that you are looking forward. We have faith in our professional team and our 70-762 Pdf study tool, and we also wish you trust us wholeheartedly. Well, you have landed at the right place; Omgzlook offers your experts designed material which will gauge your understanding of various topics.
MCP 70-762 Also it is good for releasing pressure.
We think of providing the best services of 70-762 - Developing SQL Databases Pdf exam questions as our obligation. These Microsoft Valid 70-762 Cram Materials exam dumps are authentic and help you in achieving success. Do not lose hope and only focus on your goal if you are using Valid 70-762 Cram Materials dumps.
Good practice materials like our Developing SQL Databases study question can educate exam candidates with the most knowledge. Do not make your decisions now will be a pity for good. It is a popular belief that only processional experts can be the leading one to do some adept job.
Our Microsoft 70-762 Pdf exam materials have plenty of advantages.
The software version of our 70-762 Pdf 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 Pdf 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 Pdf practice guide together.
Repeated attempts will sharpen your minds. Maybe our 70-762 Pdf learning quiz is suitable for you.
70-762 PDF DEMO:
QUESTION NO: 1
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
QUESTION NO: 2
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: 3
Database users report that SELECT statements take a long time to return results. You run the following Transact-SQL statement:
You need to create one nonclustered covering index that contains all of the columns in the above table. You must minimize index key size.
Which Transact-SQL statement should you run?
A. CREATE NONCLUSTERED INDEX IX_User ON Users (UserStatus, CountryCode) INCLUDE
(UserName);
B. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus, UserName);
C. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserStatus) INCLUDE
(UserName);
D. CREATE NONCLUSTERED INDEX IX_User ON Users (CountryCode, UserName);
Answer: C
Explanation
https://docs.microsoft.com/en-us/sql/relational-databases/indexes/create-indexes-with-included- columns
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 use the same or similar answer choices. An Answer choice may be correct for more than one question in the series. Each question independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database developer for a company. The company has a server that has multiple physical disks. The disks are not part of a RAID array. The server hosts three Microsoft SQL Server instances.
There are many SQL jobs that run during off-peak hours.
You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.
You need to create a baseline set of metrics to report how the computer running SQL Server operates under normal load. The baseline must include the resource usage associated with the server processes.
What should you do?
A. Create a SQL Profiler trace.
B. Create a sp_configure 'max server memory' query.
C. Create a sys.dm_os_memory_objects query.
D. Create a Performance Monitor Data Collector Set.
E. Create asys.dm_os_wait_stats query.
F. Create an Extended Event.
G. Create a sys.dm_os_waiting_tasks query.
H. Create a sys.dm_exec_sessions query.
Answer: C
Explanation
sys.dm_os_memory_objects returns memory objects that are currently allocated by SQL Server. You can usesys.dm_os_memory_objects to analyze memory use and to identify possible memory leaks.
Example: The following example returns the amount of memory allocated by each memory object type.
SELECT SUM (pages_in_bytes) as 'Bytes Used', type
FROMsys.dm_os_memory_objects
GROUP BY type
ORDER BY 'Bytes Used' DESC;
GO
Nutanix NCP-DB-6.5 - We have enough confidence in our products, so we can give a 100% refund guarantee to our customers. With our EC-COUNCIL 312-82 exam braindumps, you can not only learn the specialized knowledge of this subject to solve the problems on the work, but also you can get the EC-COUNCIL 312-82 certification to compete for a higher position. The procedures of buying our IBM C1000-189 study materials are simple and save the clients’ time. Amazon SAP-C02 - Please make a decision quickly. ISC CCSP-KR - Today, in an era of fierce competition, how can we occupy a place in a market where talent is saturated? The answer is a certificate.
Updated: May 28, 2022