microsoft sql server 2008 r2

As we know from data structures, Root is found at the top of Tree structures. Just below the root is usually one or more intermediate levels of intermediate levels. If there is no layer below the layer we see as Intermediate level, then it is called Intermediate level leaf. The root-leaf concept has a similar relationship to the parent-child relationship in programming concepts. Now, by making a living microsoft sql server 2008 r2

example, I can see the B-Tree logic based on Index concept more easily. We want to reach box number 150 in box set numbered 1 den 200. If you do not search without using the Index, you need to look up the number of all the boxes by 1 to 150 to see if it is a boom. However, we find it in a shorter time when we search for B-Tree as in the picture below.microsoft sql server 2008 r2

When we look at 150 like the above, we find the box 150 at 28 readings. First we compare the number 150 to the top one and we go to the 2-way box on the right. We go back to the 3-way box on the left side and finally compare it again and look for box 150 on the right side of box 4. We're trying to find 150 records in 25 records in box 4. In the previous example, we found 150 readings and 28

times this time. We do not have any memory, and we quickly get to the source we want. Now let's imagine the Citizen of the Republic of Turkey Mehmet Salih Deveci the table and call record in this table. I pass all the letters up to the letter M and go directly to the letter M as follows. So we do not have millions of recordings up to the letter M, so we complete the search in less time.

We will examine the most important of these, the Clustered Index and Non-Clustered Indexes, in detail in the forthcoming articles.microsoft sql server 2008 r2

Lastly, I want to state that. The use of unnecessary indexes on the database can be detrimental. It is very important to use this effectively for performance reasons. For example, deletion of Indexes which are very rarely used in the database, which is very low than the rate of reading the write rate, will be more useful in terms of performance.microsoft sql server 2008 r2

On the other hand, if there is a large number of reads in a database on the database and the data is mostly fixed, Index usage is very necessary in terms of performance.

So I have been at the end of this writing, and in the next article I will continue to talk about SQL Server. Stay Safe By Meeting Again ...microsoft sql server 2008 r2
microsoft sql server 2008 r2


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