CN1552032B - 数据库 - Google Patents
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- CN1552032B CN1552032B CN018221858A CN01822185A CN1552032B CN 1552032 B CN1552032 B CN 1552032B CN 018221858 A CN018221858 A CN 018221858A CN 01822185 A CN01822185 A CN 01822185A CN 1552032 B CN1552032 B CN 1552032B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2228—Indexing structures
- G06F16/2255—Hash tables
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2228—Indexing structures
- G06F16/2246—Trees, e.g. B+trees
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2228—Indexing structures
- G06F16/2272—Management thereof
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Navigation (AREA)
Abstract
Description
判定值 | 判定值的改变 | 操作 |
78 | 跟随高指针(82>78)新判定值=(78+90)/2 | |
84 | 6 | 跟随低指针(82<74)新判定值=(84+78)/2 |
81 | 3 | 跟随高指针(82>81)新判定值=(81+84)/2 |
82.5 | 1.5 | 跟随低指针(82<83)新判定值=(82.5+81)/2 |
81.75 | 0.75 | 改变判定组 |
ASCII字符 | 映射值 |
元音(A,E,I,O,U) | 删除 |
数字(0,1,2,3,4,5,6,7,8,9) | 删除 |
标点符号 | 删除 |
空格,Tab | 0 |
B | 1 |
C,K,Q | 2 |
D | 3 |
F | 4 |
G,J | 5 |
H | 6 |
K | 7 |
L | 8 |
M,N | 9 |
P | 10 |
R | 11 |
S,Z | 12 |
T | 13 |
V | 14 |
W | 15 |
X,Y | 删除 |
ASCII字符 | 映射值 |
空格,Tab | 0 |
标点符号 | 1 |
数字(0,1,2,3,4,5,6,7,8,9) | 2 |
元音(A,E,I,O,U) | 3 |
B,D | 4 |
C,K | 5 |
F,P | 6 |
G,J | 7 |
H,Y | 8 |
K,L | 9 |
M,N | 10 |
P,Q | 11 |
R,S | 12 |
T | 13 |
V,W | 14 |
X,Z | 15 |
Claims (103)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0029238A GB2369695B (en) | 2000-11-30 | 2000-11-30 | Database |
GB0029238.3 | 2000-11-30 | ||
PCT/GB2001/005242 WO2002044940A2 (en) | 2000-11-30 | 2001-11-28 | Method of organising, interrogating and navigating a database |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006100515624A Division CN1822003A (zh) | 2000-11-30 | 2001-11-28 | 数据库 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1552032A CN1552032A (zh) | 2004-12-01 |
CN1552032B true CN1552032B (zh) | 2010-04-28 |
Family
ID=9904192
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006100515624A Pending CN1822003A (zh) | 2000-11-30 | 2001-11-28 | 数据库 |
CN018221858A Expired - Fee Related CN1552032B (zh) | 2000-11-30 | 2001-11-28 | 数据库 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006100515624A Pending CN1822003A (zh) | 2000-11-30 | 2001-11-28 | 数据库 |
Country Status (22)
Country | Link |
---|---|
US (1) | US8224829B2 (zh) |
EP (3) | EP2270680A3 (zh) |
JP (3) | JP4810785B2 (zh) |
KR (2) | KR100886189B1 (zh) |
CN (2) | CN1822003A (zh) |
AR (1) | AR035508A1 (zh) |
AT (1) | ATE436055T1 (zh) |
AU (4) | AU2209602A (zh) |
CA (1) | CA2429990A1 (zh) |
CY (1) | CY1109459T1 (zh) |
DE (1) | DE60139212D1 (zh) |
DK (1) | DK1364314T3 (zh) |
EA (4) | EA006562B1 (zh) |
EG (1) | EG23400A (zh) |
ES (1) | ES2329339T3 (zh) |
GB (6) | GB2406679B (zh) |
IL (3) | IL156117A0 (zh) |
MY (2) | MY142616A (zh) |
NO (2) | NO20032416L (zh) |
NZ (3) | NZ543307A (zh) |
SG (1) | SG148842A1 (zh) |
WO (1) | WO2002044940A2 (zh) |
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