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Page "Database index" ¶ 7
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non-clustered and index
In a non-clustered index:
There can be more than one non-clustered index on a database table.
In Microsoft SQL Server, the leaf node of the clustered index corresponds to the actual data, not simply a pointer to data that resides elsewhere, as is the case with a non-clustered index.

index and tree
A Huffman-threaded interpreter locates subroutines using an index table or tree of pointers that can be navigated by the Huffman code.
The retention index ( RI ) is also a measure of the amount of homoplasy but also measures how well synapomorphies explain the tree.
Addresses are broken down as follows: 21 bits unused, 10 bits to index the root level of the tree, 10 bits to index the middle level of the tree, 10 bits to index the leaf level of the tree, and 13 bits that pass through to the physical address without modification.
Data from the next entry in the file can be retrieved by advancing the index in the tree.
Double-decay analysis is a decay counterpart to reduced consensus that evaluates the decay index for all possible subtree relationships ( n-taxon statements ) within a tree.
where S ranges across subsets of of size n − 1, and F < sub > S </ sub > denotes the ( n − 1 )- by -( n − 1 ) matrix whose columns are those of F with index in S. Then every S specifies n − 1 edges of the original graph, and it can be shown that those edges induce a spanning tree iff the determinant of F < sub > S </ sub > is + 1 or − 1, and that they do not induce a spanning tree iff the determinant is 0.
The PDO index has been reconstructed using tree rings and other hydrologically sensitive proxies from west North America and Asia.
The drawback of a btree is that data must be constantly balanced when it is inserted into the tree, therefore Btrieve only stores the record index as btree to reduce the amount of time it takes to insert and update records.
A useful index fossil, this tree is found in strata dating from the Upper Devonian to Lower Carboniferous (), and has a global distribution.
The leaves of the tree are nodes which produce results by scanning the disk, for example by performing an index scan or a sequential scan.
In computer science, an X-tree is an index tree structure based on the R-tree used for storing data in many dimensions.

index and contains
Other methods include server side sessions, hidden variables ( when the current page contains a form ), and URL-rewriting using URI-encoded parameters, e. g., < tt >/ index. php? session_id = some_unique_session_code </ tt >.
An appendix section in the book contains a chronology of events starting at 1833, a 70-page index, a list of the 100 or so main stories, and a plan of the elevation of the block as the 10x10 grid.
The firm ’ s index of the 1, 000 most valuable works of art sold at auction – Skate ’ s Top 1000 – contains 7 works by Johns.
Although it is possible that this work was inspired by Johnson asking for an " index rerum " for Richardson's novels, the Collection contains more of a focus on " moral and instructive " lessons than the index that Johnson sought.
: Magma contains the structured Gaussian elimination and Lanczos algorithms for reducing sparse systems which arise in index calculus methods, while Magma uses Markowitz pivoting for several other sparse linear algebra problems.
The Main Library of the Pine Bluff / Jefferson County Library System contains an extensive genealogy collection, including the online obituary index of the Pine Bluff Commercial, Arkansas census records, and many county and city records for much of southeast Arkansas.
The edition contains an introduction, Holberg's texts in both Latin and Danish, commentaries and an index.
Part I: A Temperature-Humidity Index Based on Human Physiology and Clothing Science, R. G. Steadman, Journal of Applied Meteorology, July 1979, Vol 18 No7, pp861-873 Like the wind chill index, the heat index contains assumptions about the human body mass and height, clothing, amount of physical activity, thickness of blood, sunlight and ultraviolet radiation exposure, and the wind speed.
In protected mode the segment_part is replaced by a 16 bit selector, the 13 upper bits ( bit 3 to bit 15 ) of the selector contains the index of an entry inside a descriptor table.
II contains the index for both vol.
The encyclopedia makes heavy use of cross-referencing and contains a large analytical index of more than 150, 000 entries.
* The Big Mac Index index pagecontains Big Mac Index data dating back to 1997 ( Economist. com subscription required for detail )
Such a subgroup always contains a normal subgroup N ( of G ), also of finite index.
* A < sup > p </ sup >( G ) is the intersection of all normal subgroups K such that G / K is an abelian p-group ( i. e., K is an index normal subgroup that contains the derived group ): G / A < sup > p </ sup >( G ) is the largest abelian p-group ( not necessarily elementary ) onto which G surjects.
* http :// rt. wiki. kernel. org / index. php / Main_Page contains an implementation of this algorithm which is a part of the in-kernel Linux real time effort to make the entire Linux kernel fully preemptive
With his unique facility for both Chinese and English idiom, Lin presided over the compilation of an outstanding Chinese-English dictionary, Lin Yutang's Chinese-English Dictionary of Modern Usage () ( 1972 ), which contains a massive English index to definitions of Chinese terms.
The index contains major railroads, shipping companies, and air freight carriers in the US.
The first two of these are simple groups, and the third contains the simple group Fi < sub > 24 </ sub >' of index 2.
* CA Directory: CA Directory contains pre-caching engine which can index all attributes that are used in LDAP search filters, and caching all attributes returned in search results.
The third edition of 1969 – 1978 contains 30 volumes ( 100, 000 entries, plus an index volume issued in 1981 ).
( Archived copy from 5 Feb 2005 ) Note that this site uses frames, but on high-resolution screens the left-hand frame, which contains the site index, may be hidden.
any discrete group with polynomial growth is almost nilpotent ( i. e. it contains a nilpotent subgroup of finite index ).
The fiber modes are usually referred to as LP ( linear polarization ) modes, which refers to a scalar approximation for the field solution, treating it as if it contains only one transverse field component ( this is accurate because of the low refractive index contrast in typical fibers, the transverse electromagnetic ( TEM ) type.

index and keys
If the keys match, then a matching element has been found so its index, or position, is returned.
With the 9 main keys, ( operated by the index, middle, and ring fingers ), 2 prefix keys and one delete key, the EkaPad can produce all the inputs of a standard qwerty keyboard with one, two, and a few three finger chords.
In general, a hashing function may map several different keys to the same index.
Because the typographer used a dial, rather than keys, to select each character, it was called an " index typewriter " rather than a " keyboard typewriter.
When sort keys for a dataset are uniformly distributed numbers, linear interpolation is straightforward to implement and will find an index very near the sought value.
* A central directory — i. e. a secure location in which to store and index keys.
Section headers is the literal translation, but these are also known as dictionary classifiers or index keys.
Duplicate keys in indexed or alternate index files may be allowed or disallowed.
An ESDS may have an index defined to it to enable access via keys, by defining an Alternate Index.
An RRDS may have an index defined to it to enable access via keys, by defining an Alternate Index.
Furthermore a non-redundant distribution of keys causes the resulting b-tree index to be completely balanced.
ISBN 954-642-281-9, Pensoft Publishers, Sofia-Moscow, 165x240, keys, species descriptions, b / w drawings and photos, references, index.
Most modern computer keyboards have a raised dot or bar on the home keys for the index fingers to help touch typists maintain and rediscover the correct position on the keyboard quickly with no need to look at the keys.
A method taught since the 1960s ( and perhaps earlier ): The left little finger is used for the keys, the ring finger for, the middle —, the left index finger is responsible for and.
On the right side of the keyboard: indexand, middle —, ring — and the little — all other keys on the right side of the upper row.
In this respect the fingering of the right hand is reversed to that found in all other keyed wind instruments, where the keys and holes controlled by the index fingers are further up towards the mouthpiece than the other fingers.
It holds the page size, the number of pages in current use, the number of keys that can index the file, the number of records in the file and other details.
The linked duplicate method used a pair of record pointers in the index page itself to point to the head and tail of a doubly linked list of duplicate keys.
The duplicate key method did not use a linked list, but rather made all the keys unique by creating a new index key and appending the address of the record pointer to the end of the key.
It is a dynamic, multilevel index, with maximum and minimum bounds on the number of keys in each index segment ( usually called a " block " or " node ").

2.311 seconds.