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Dense Index:
An index record appears for every search key value in file.
This record contains search key value and a pointer to the actual record.
Sparse Index:
Index records are created only for some of the records.
To locate a record, we find the index record with the largest search key value less than or equal to the search key value we are looking for.
We start at that record pointed to by the index record, and proceed along the pointers in the file (that is, sequentially) until we find the desired record.
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(ref: http://sawaal.ibibo.com/computers-and-technology/difference-between-sparce-index-dence-index-773764.html)
What else can I help you with?
What is the difference between value weighted index and equal weighted index?
Value weighted index is a market average such as Standard & Poor's 500 Index that takes into account the market value of each security rather than calculating a straight price average. An equal weighted index is a type of weighting that gives the same weight, or importance, to each stock in a portfolio or index fund. The difference is one gives individual value and other gives one value to all.
Defference between direct sequential and index sequential?
reduce the chance of false identification.----apex
Why fisher index is the ideal index?
becaused it is exact
Disadvantages of index number?
disadvantages of index numbers
What is the difference between Dow Jones average and Nasdq and Standard and Poor?
The Dow Jones Industrial Average (DJIA) is a price-weighted index that tracks 30 large, publicly-owned companies in the U.S., primarily focusing on blue-chip stocks. The Nasdaq Composite is a market capitalization-weighted index that includes over 3,000 stocks listed on the Nasdaq stock exchange, emphasizing technology and growth-oriented companies. The Standard & Poor's 500 (S&P 500) is also a market-capitalization-weighted index, representing 500 of the largest U.S. companies across various sectors, providing a broader measure of the overall market performance. Each index reflects different segments of the market, with varying methodologies and company compositions.
Advantage and disadvantage of sparse index over the dence index?
Sparse advantage, less storage space required Dense advantage faster since each index key is directly linked to a record key
When it is preferable to use dense rather than sparse indexes?
Dense indexes are preferable when the dataset is small or when quick access to all records is required since they contain an index entry for every search key value, allowing for faster retrieval without the need for additional lookups. They are also beneficial when the data is frequently updated, as maintaining a dense index can simplify the process of keeping the index synchronized with the data. In scenarios where the retrieval of a specific range of values is common, dense indexes can provide efficient access to the entire range.
What is the index error in theodolite?
Half of the difference between the two positions is called the "index error".
Is there any difference between index and indicator?
yes there iis
What are the difference between Unicode and ASCII code?
describe the destination index
What is the difference between viscosity and viscosity index?
Viscosity is resistance to flow of oil Viscosity Index is a scale to measure viscosity
What is the difference between a glossary and index?
A glossary defines words, while the index tells what pages certain topics are on in the book.
Why the refractive index of ice is lower than that of water?
The refractive index of a material is related to how light propagates through it. Ice has a lower refractive index than water because its molecular structure is less dense and more sparse compared to water. This difference in molecular arrangement affects how light interacts with the substance, leading to a lower refractive index in ice compared to water.
Difference between Index File and Index Sequential file?
index file is organized with the help of any key as index number at rondomly but index sequencial file organized with the help of any index sequentialy rajesh patel
What is the difference between mutual funds and index funds?
Index funds are a type of mutual fund that invests in the stocks of a specific market index, attempting to maintain a value per unit that tracks that index.
What is the difference between an index one crime and an index two crime as measured in the Uniform Crime Reports of the FBI?
any type of crime
What is the difference between male and female body mass index?
There are boys and girls. They are different
