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What is hash key?
hash key is an element in the hash table. it is the data that you will combine (mathematical) with hash function to produce the hash.
What are lookup values?
it is a value that is given in a another table
How do you use hash table?
In computer science, a hash table, or a hash map, is a data structure that associates keys with values. The primary operation it supports efficiently is a lookup: given a key (e.g. a person's name), find the corresponding value (e.g. that person's telephone number). It works by transforming the key using a hash function into a hash, a number that is used as an index in an array to locate the desired location ("bucket") where the values should be. Hash tables support the efficient insertion of new entries, in expected O(1) time. The time spent in searching depends on the hash function and the load of the hash table; both insertion and search approach O(1) time with well chosen values and hashes.
Advantage and distadvantage in hash table?
ANSWER A hash table is a way to find data in an array, when you have a known key and an unknown value that corresponds to the key. You use a hashing function on the key to create an index into the hash table containing the value. In the ideal case, this directly returns the corresponding value. In the usual case, a collision can occur. This means that the hashed key points to multiple possible values. A hash table is usually used on large arrays that would take a long time to search using other methods. A hash table can be very fast and use very little memory, and does not require the array to be sorted. The source code is slightly more complicated than some search methods. With a poorly designed hashing function when the hashed keys do not correspond one-to-one with the values, the secondary search after a hash collision can take a large amount of time.
What is a hashing algorithm?
hashing algorithm contain two components - hashing function & collision. hashing is mechanism which generally used in random file organization to convert the record key value into address.
What is hash key?
hash key is an element in the hash table. it is the data that you will combine (mathematical) with hash function to produce the hash.
What is hash table in sql?
temp table
What is the major advantage of a hash table?
The major advantage of a hash table is its speed. Because the hash function is to take a range of key values and transform them into index values in such a way that the key values are distributed randomly across all the indices of a hash table.
Clem has entered the following formula into his spreadsheet VLOOKUP(A5A7G203TRUE). What advanced feature is he using?
lookup table
What is a table used for in a computer?
Lookup.
What is lookup table in microprocessor?
The lookup table in a microprocessor is a system that helps replace the runtime computations. It replaces them with an easier index operation.
What is lookup table size formula?
the w;dksfosjdgjh
What are lookup values?
it is a value that is given in a another table
How can you use we lookup wizard in Excel?
There is no lookup wizard in Excel. That is something you find in Access, when entering fields. It allows you to link one table to another table or to set a list of values that can be used when entering data. There are a number of lookup functions in Excel, but they do not have wizards associated with them. The lookup functions in Excel are for different purposes than the lookup wizard in Access is for.
What is the optimal hash table size for achieving efficient performance when dealing with prime numbers?
The optimal hash table size for efficient performance when dealing with prime numbers is typically a prime number that is close to but not exceeding the desired capacity of the hash table. This helps reduce collisions and ensures a more even distribution of values across the table, leading to better performance.
What is Lookup Wizard?
The lookup wizard allows you to create a field that sources its data from a list of values of a field in another table or query.
What is the net collection class that allows an element to be accessed using a unique key?
The net collection class that allows an element to be accessed using a unique key is a Dictionary<Tkey, TValue>. This class stores key-value pairs and provides fast lookup by key.
