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Topic: Lookup table

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	Postfix Lookup Table Overview
		Postfix lookup table types" at the end of this document, and where "table" is the lookup table name.
		The lookup table name as used in "pcre:table" is the name of the regular expression file.
		The lookup table name is "tcp:host:port" where "host" specifies a symbolic hostname or a numeric IP address, and "port" specifies a symbolic service name or a numeric port number.
	www.postfix.org /DATABASE_README.html (1452 words)

	Lookup Table Design - SQL Server Central
		When we say that a table is a lookup table for another main table, we mean that the lookup table contains values that will be used as the content of a column located in the main table.
		The main table stores only the values from the CD field, but since there is a relationship between the lookup and the main table, the value of the associated Description field is also associated with the record in the main table.
		Lookup table design implementation may have some variations from the described above and should be implemented very carefully based on the specific business conditions.
	www.sqlservercentral.com /articles/Basics/lookuptabledesign/1424 (1364 words)

	Tables: Lookup Table Manager
		This utility started because of a project I was working on, that had several large lookup tables, that were semi-static, that means that they are not changed very often, but they can actually be updated when the user wish to add something.
		Two more tables are required that contain some information about the lookup tables that will be used in the application, one is located on the front end (tblLocalLUT), and another located on the back end and likend to the front end.
		This two tables control the date/time that each lookup table was updated, they to that with the field tlkpLUT.
	www.mvps.org /access/tables/tbl0017.htm (349 words)

	Lookup Tables
		When an element is added to the table, lookup returns true for that element and the contents are otherwise unaffected.
		Lookup is done by the membership test, in, addition and deletion by set union and difference.
		If the number of entries in the table is liable to grow, a common strategy is to increase the table size when the number of entries reaches a certain percentage of the table's current capacity or when the collision rate reaches some critical level.
	www.csse.monash.edu.au /~lloyd/tildeAlgDS/Table (2864 words)

	[No title]
		Lookup tables rely on using the powerful \(\) and \d (\1,\2, etc.) back-reference operators in the s/// (substitute) command -- in particular, the fact that you can use the \d later on in the same pattern itself to find another instance of a previously matched string.
		In this case we delete the lookup table -- the second.* is used to consume the remainder of the table.
		Second, the.* that skips to the lookup table often relies on the fact that a * wildcard will always push as far to the right as possible (in standard "greedy" REs), and the lookup table is at the end.
	sed.sourceforge.net /grabbag/tutorials/lookup_tables.txt (1386 words)

	Lookup table - Wikipedia, the free encyclopedia
		In computer science, a lookup table is a data structure, usually an array or associative array, used to replace a runtime computation with a simpler lookup operation.
		Lookup tables are also used by math co-processors, and an error in a lookup table was responsible for Intel's infamous floating point bug.
		It's important to note that, while often effective, lookup tables can result in a severe penalty if the computation it replaces is relatively simple, not only because retrieving the result from memory may require more time, but also because it may increase memory requirements and pollute the cache.
	en.wikipedia.org /wiki/Lookup_table (1140 words)

	Tip: XSLT lookup tables
		Lookup tables are a common technique for quickly finding results that would be very inefficient or impossible to determine through programming.
		Lookup tables can be just as useful in XSLT as in any other language, especially since XSLT is highly specialized for transforming XML trees, and not very powerful at string or numeric manipulation.
		Keeping the lookup table solves the problem, but it might be inconvenient to have to always provide two documents: the XSLT transform and the lookup table document.
	www-106.ibm.com /developerworks/library/x-xsltip.html (1155 words)

	Lookup table in Microsoft ACCESS
		When we say that a table is a lookup table for another main table, it means that the lookup table contains values that will be used as the contents of a field located in the main table.
		The main table stores only the values from the Id field, but since there is a relationship between the lookup and the main table, the value of the associated Description field is also associated with the record in the main table.
		On the level of the user interface, lookup tables are often implemented as list boxes or combo boxes.
	www.trigonblue.com /AccessLookup.htm (1133 words)

	Digital display system with color lookup table - Patent 4710806
		The color lookup table comprises a first area storing color data common to a plurality of images and further areas each storing color data related to a corresponding one of the images.
		For example, if colors to be stored in the color lookup table are selected by uniform sampling, a difference between a color of the original image and a color actually displayed is relatively small, but clear stripes appear in a region with a uniform chromaticity and smoothly varying brightness.
		In accordance with the present invention, a color lookup table is divided into a shared area which is shared by a plurality of color images, and a plurality of dedicated areas corresponding to the respective color images.
	www.freepatentsonline.com /4710806.html (4082 words)

	OpenType Layout Common Table Formats
		Lookups describe the glyphs affected by an operation, the type of operation to be applied to these glyphs, and the resulting glyph output.
		For instance, a GSUB lookup might specify the glyphs to be substituted and the context in which a substitution occurs, and a GPOS lookup might specify glyph position adjustments for kerning.
		Multiple lookups may be needed to define the data required for different substitution and positioning actions, as well as to control the sequencing and effects of those actions.
	www.microsoft.com /typography/otspec/chapter2.htm (5363 words)

	Apple Advanced Typography Font Tables
		This chapter discusses three table components that are used by many of the Apple Advanced Typography (AAT) tables and a section that summarizes all of the AAT tables.
		For a format 2 lookup table, the single lookup value is applied uniformly to all the glyphs in the segment.
		The state table data structure is divided into four sections: the state header, the class subtable, the state array, and the entry subtable.
	developer.apple.com /textfonts/TTRefMan/RM06/Chap6Tables.html (2664 words)

	Dannenberg, Roger, rbd@cs
		Table lookup is used to generate sinusoids for additive synthesis, and fixed spectra for group additive, spectral interpolation, and vector synthesis.
		The purpose of a table lookup oscillator is to output samples of a periodic function (call this F for now, and assume that the domain of F is the interval [0, 1)).
		We have demonstrated that the table size required to achieve a given SNR is highly dependent upon the spectrum and the interpolation method.
	www-2.cs.cmu.edu /~rbd/papers/tlu98/tlu.html (1648 words)

	Lookup Table and Addressing
		Lookup value: this is the cell with the grade you want to look up.
		Table Array: This is the range of the lookup table.
		Range Lookup: The grades entered are discrete values so we want an exact match (we cannot have a grade of A 1/2 for example).
	www.earlham.edu /~markp/mgmt_110/excel/table_lookup_instructions.htm (374 words)

	Deterministic IP Table Lookup at Wire Speed
		One of the most common approaches for address table lookup is a Patricia trie, which is a special case of a digital search tree.
		The table lookup controller interfaces memory, where the trie is stored; microprocessor via microprocessor interface; and the circuits that are located before and after it.
		The speed of the memory is a main factor affecting the speed of the lookup.
	www.isoc.org /inet99/proceedings/4j/4j_2.htm (6589 words)

	Chapter Twelve Calculation Via Table Lookups
		A table is an array containing preinitialized values that do not change during the execution of the program.
		Table look ups take the input value for a function, use this input value as an index into the table, and return the value at that entry in the table.
		Once you run your table generation program, all that remains to be done is to cut and paste the table from the file (sines.hla in this example) into the program that will actually use the table.
	webster.cs.ucr.edu /AoA/Linux/HTML/TableLookups.html (3250 words)

	[No title]
		I discovered that this is [almost] impossible to do in a lookup table without having to have a special case for every possible length.
		Since the nines table in the sort/delimit/number script was "990090", you can see it was limited to counting up to 999 -- a number I thought practical considering the limitations in the efficiency of the sort and the size of many sed buffers.
		Because the lookup table is inserted near the front of the pattern space, the "searches" are bounded (e.g., [^1]* and [0-9]) so they don't cross the space character that marks the end of the table*.
	sed.sourceforge.net /grabbag/tutorials/lookup_table_counter.txt (1595 words)

	Recategorizing Data with Lookup Tables
		If we create a new table having the very detailed codes as one column, and another column containing a more general class description for each of the detailed codes, the new lookup table may be joined to the our land use layer's attribute table using the original land use code as a key field.
		Note that tables won't be visible in the map's table of contents until you choose the Source tab at the bottom of the table of contents.
		The essential nature of a lookup table is that it has one row for each of the possible unique values of the detailed classification scheme.
	www.gsd.harvard.edu /gis/manual/lookup/index.htm (954 words)

	Online Poker Player Stats Tracking Software \| Hand Histories Database \| Player Profiling
		The filters you set are applied to all facets of PokerEdge including the stats shown, the icon/color ratings in Auto Table Lookup, and the Table Summary.
		Auto Table Lookup will instantly identify the players that are sitting at any of the poker tables that you currently have open.
		The value of "Minimum Hands Threshold for Table Summary" for the current Configuration determines how many hands a player neeeds to have tracked if he is to be included in the Table Summary calculation.
	www.poker-edge.com /html/Tutorial4.0/v4_tutorial.html (2075 words)

	Lookup Table (n-D) :: Blocks (Simulink)
		The Lookup Table (n-D) block evaluates a sampled representation of a function in N variables by interpolating between samples to give an approximate value for
		Table data and Breakpoint set parameters must be of the same type as the inputs.
		The cell array of values corresponding to the fifth, sixth, or higher dimensions for the table, entered as a 1-D cell array of vectors.
	www.mathworks.com /access/helpdesk/help/toolbox/simulink/slref/lookuptablend.html (1029 words)

	kbAlertz: After you create a lookup table, you may experience either of the following symptoms:
		You receive these errors even though the values in the lookup table are correctly sorted in ascending order and the value being looked up appears to fall within the range of the lookup table values.
		If you want your lookup table to be split into separate tables for text and numbers (the default), you must include minimum values for both the text and the numeric values in your lookup table.
		If you want the table to behave the way it appears after it is sorted by Microsoft Excel, such that it returns the highest numeric value if a text value is looked up, then you must treat your table as text only.
	www.kbalertz.com /kb_Q200855.aspx (1058 words)

	Tip: Default and error handling in XSLT lookup tables
		As I wrote in my earlier tip, lookup tables are a common technique for quickly finding results that would be very inefficient or impossible to determine through programming.
		For example, if one of the values in the lookup table legitimately resulted in an empty string, you might not be able to distinguish the error case.
		Listing 2 is a mailing label file with one entry using a state abbreviation that's not in the lookup table.
	www.ibm.com /developerworks/xml/library/x-tiplook.html (881 words)

	Lookup Table Maintenance Window
		Lookup Tables allow users to select standard options when creating records in the system.
		When the Lookup Table Maintenance option is selected from the System Administrator Menu, a blank Lookup Table Maintenance Window is displayed.
		WARNING: If you delete or change a lookup item that is that is used in other records in the system, it will change all records that use that lookup item.
	www.surveytrak.com /SurveyTrakHelp/455_lookup_table.htm (268 words)

	2005 Sierra Research - I/M Lookup Table Detailed Description
		Version 1.8.5 of the I/M Lookup Table, the last publicly available version developed with US EPA funding that was released in October 2000, includes loaded mode tailpipe and gas cap testing data for model year (MY) 1973-1999 passenger cars and light-duty trucks.
		The Sierra Research I/M Lookup Table is the only available lookup table of vehicle emissions and OBDII test parameters for the full range of model year 1973 and newer in-use motor vehicles.
		Both the development of a program-specific lookup table and the 10 hours of telephone assistance are standard support items that will be included as part of the $15,000 purchase price.
	www.sierraresearch.com /LookUpTableDetailedDescription.htm (2399 words)

	Hash Functions for Hash Table Lookup
		This paper presents new hash functions for table lookup using 32-bit or 64-bit arithmetic.
		Hash Functions for Table Lookup present the new 32-bit and 64-bit hashes.
		Table EMP is the standard toy database table, and a typical set of data
	burtleburtle.net /bob/hash/evahash.html (2744 words)

	Hash Functions for Hash Table Lookup
		The hash function maps the key of an item to a hash value, and that hash value is used as an index into the hash table for that item.
		Hash Functions for Table Lookup present the new 32-bit and 64-bit hashes.
		Table EMP is the standard toy database table, and a typical set of data
	www.burtleburtle.net /bob/hash/evahash.html (2744 words)

	Table Lookup
		Table lookup with a small table using array processing
		Performing a table lookup with a small lookup data set
		Table lookup using a DO loop with a DO UNTIL
	support.sas.com /techsup/sample/tablelookup.html (233 words)

	DBAzine.com: One True Lookup Table
		I think that Paul Keister was the first person to coin the phrase “OTLT” (One True Lookup Table) for a common SQL programming technique that is popular with newbies.
		They say to themselves that a table is a class, which it isn’t, and therefore it ought to have polymorphic behaviors, which it doesn’t.
		Maybe there are good reasons for the data modeling principle that a well-designed table is a set of things of the same kind instead of a pile of unrelated items.
	www.dbazine.com /ofinterest/oi-articles/celko22 (912 words)

	VB Helper: HowTo: Use DAO to make a database lookup table
		It builds the new lookup table, extracts distinct values from the original table, and defines a relationship between the original table and the new lookup table.
		Enter the names of the database, original table and field (Addresses, State), the lookup table and field (State, StateAbbrev), and the relationship that should link the tables (leave this blank if you don't want to create a relationship).
		The lookup table's field should contain unique values (it wouldn't make sense to have two records with the value "CO" in the States table) so the program adds a unique index to the lookup field (States.StateAbbrev).
	www.vb-helper.com /howto_make_db_lookup_table.html (671 words)

	17. A simple lookup table (Site not responding. Last check: 2007-10-11)
		Clearly this class could be used in applications or programs that read a data file (containing pairs of words), filled the table and then read commands from the user to allow words to be found.
		The way the table is stored is that entries are added to the next empty space after the last useful entry.
		This routine is given a string as parameter, it matches the string to a key in a pair in the table and removes the matching entry:
	plink.feis.herts.ac.uk /~1com0027/eiffel-notes-node17.html (838 words)

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