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Can user see indexes in database?

Posted By :shankey     Posted Date :July 25, 2011    Points :40   Category :Others 
No, user cannot see they are just used to speed up the queries.

You can also find related Interview Question to Can user see indexes in database?  below: 

Database Concurrency in Sql Server.

  
When two or more user try to update same type of data in a table then Database Concurrency helps in this situation.

There are 2 types of Database Concurrency

Pessimistic: When one user try to change the data with pessimistic concurrency then a lock is placed on the data in a table so that another user cannot change data. when one user finishes then other user can able to change.

Optimistic: When two user works on the same data in a table and one change that data first then second user cannot change that same data becasue the which he have using is allready changed so he cannot do the change becasue change apply to another data that is changed by first user. (More...)

What are the requirements to create a CLR based user-defined type?

  
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What are the types of indexes available with SQL Server?

  
There are basically two types of indexes that we use with the SQL Server. Clustered and the Non-Clustered. (More...)

What are the privileges that can be granted on a table by a user to others?

  
Insert, update, delete, select, references, index, execute, alter, all (More...)

What is a Database system?

  
The database and DBMS software together is called as Database system. (More...)

What is a user control?

  
An ASP.NET user control is a group of one or more server controls or static HTML elements that encapsulate a piece of functionality. A user control could simply be an extension of the functionality of an existing server control(s) (such as an image control that can be rotated or a calendar control that stores the date in a text box). Or, it could consist of several elements that work and interact together to get a job done (such as several controls grouped together that gather information about a user's previous work experience). (More...)

What is different between Web User Control and in Web Custom Control?

  
Web user controls : Web User Control is Easier to create and another thing is that its support is limited for users who use a visual design tool one gud thing is that its contains static layout one more thing a seprate copy is required for each application.

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Indexes in SQL Server?

  
Indexes in SQL Server are similar to the indexes in books. They help SQL Server retrieve the data quicker.

Indexes are of two types. Clustered indexes and non-clustered indexes. When you craete a clustered index on a table, all the rows in the table are stored in the order of the clustered index key. So, there can be only one clustered index per table. Non-clustered indexes have their own storage separate from the table data storage. Non-clustered indexes are stored as B-tree structures (so do clustered indexes), with the leaf level nodes having the index key and it's row locater. The row located could be the RID or the Clustered index key, depending up on the absence or presence of clustered index on the table.

If you create an index on each column of a table, it improves the query performance, as the query optimizer can choose from all the existing indexes to come up with an efficient execution plan. At the same t ime, data modification operations (such as INSERT, UPDATE, DELETE) will become slow, as every time data changes in the table, all the indexes need to be updated. Another disadvantage is that, indexes need disk space, the more indexes you have, more disk space is used. (More...)

Any User outside of organization to participate in my Windows SharePoint Services site

  
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How customizable is the user-to-user access in SHarePoint?

  
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Can each user have access to their own calendar in a SharePoint Website?

  
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Can SharePoint be linked to a SQL database?

  
This is possible via a custom application, but it not natively supported by SharePoint or SQLServer. (More...)

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