CS2007Ch12C
... you’re inserting, and use that number directly as the item number in a list (array). ...
... you’re inserting, and use that number directly as the item number in a list (array). ...
B Trees
... An index is an ordered list of all the values that reside in a group of one or more columns at a given time. Such a list makes queries that test the values in those columns vastly more efficient. Indexes also take up storage space, and must be changed whenever the data is, so a cost-benefit analys ...
... An index is an ordered list of all the values that reside in a group of one or more columns at a given time. Such a list makes queries that test the values in those columns vastly more efficient. Indexes also take up storage space, and must be changed whenever the data is, so a cost-benefit analys ...
Hash Table
... • Choosing the size of the hash table – Small enough not to waste space – Large enough such that lists remain short – Typically 10% -20% of the total number of elements ...
... • Choosing the size of the hash table – Small enough not to waste space – Large enough such that lists remain short – Typically 10% -20% of the total number of elements ...
CS163_Topic6
... • In many applications, a significant amount of computation time is spent sorting data or searching for data. • Therefore, it is really important that you pick an efficient algorithm that matches the tasks you are trying to perform. Why? • Because some algorithms to sort and search are much slower t ...
... • In many applications, a significant amount of computation time is spent sorting data or searching for data. • Therefore, it is really important that you pick an efficient algorithm that matches the tasks you are trying to perform. Why? • Because some algorithms to sort and search are much slower t ...
Creating And Maintaining A Database
... Add records to a table using Datasheet View • Once the table has been created, you can then add records to the table using Datasheet View. • As you enter records, they will be placed in the order in which you enter them. However, when you close the table and open it again, the records will be order ...
... Add records to a table using Datasheet View • Once the table has been created, you can then add records to the table using Datasheet View. • As you enter records, they will be placed in the order in which you enter them. However, when you close the table and open it again, the records will be order ...
ppt
... Fibonacci • Recursive Fibonacci: int Fib(n) if (n == 0 or n == 1) return 1 else return Fib(n - 1) + Fib(n - 2) ...
... Fibonacci • Recursive Fibonacci: int Fib(n) if (n == 0 or n == 1) return 1 else return Fib(n - 1) + Fib(n - 2) ...
22C:21 Lecture Notes Running time of Binary Search
... Even when n exceeds a million, log2 (n) is still at 20. This means that even for a million element array, binary search examines (in the worst case) about 21 elements! We will now introduce the notion of the running time of an algorithm (or a function or a program) and talk about how the running tim ...
... Even when n exceeds a million, log2 (n) is still at 20. This means that even for a million element array, binary search examines (in the worst case) about 21 elements! We will now introduce the notion of the running time of an algorithm (or a function or a program) and talk about how the running tim ...
PowerPoint 2007
... # of hops required increases in a sort-of logarithmic manner with respect to database size Opposite to exponential growth Logarithmic shoots up in the beginning, but slows Exponential grows slowly at the beginning, but shoots up rapidly ...
... # of hops required increases in a sort-of logarithmic manner with respect to database size Opposite to exponential growth Logarithmic shoots up in the beginning, but slows Exponential grows slowly at the beginning, but shoots up rapidly ...
PART 2
... 1. Data structures subject is concerned with data organization and fast access to this data in memory. Given the following data structures, (1) An ordered linked-list. (2) An (almost balanced) binary search tree, where every node has two pointers to its two children and a pointer to its parent. (3) ...
... 1. Data structures subject is concerned with data organization and fast access to this data in memory. Given the following data structures, (1) An ordered linked-list. (2) An (almost balanced) binary search tree, where every node has two pointers to its two children and a pointer to its parent. (3) ...
Midterm Solutions
... 6. Properties of data structures. (a) Binary heaps. i. False. Key N − 2 can be also be a grandchild of the root node: a[4], a[5], a[6], or a[7]. ii. True. Since the keys are inserted in descending order, each insertion (other than the first) takes only 1 compare and 0 exchanges to swim it up from th ...
... 6. Properties of data structures. (a) Binary heaps. i. False. Key N − 2 can be also be a grandchild of the root node: a[4], a[5], a[6], or a[7]. ii. True. Since the keys are inserted in descending order, each insertion (other than the first) takes only 1 compare and 0 exchanges to swim it up from th ...
An Introduction to Features of the C Language
... of the utility of a kJw-Ievel language stJCh as assembly language. One way C doe$ this is through its very general support for pointers.. A pointer in C represents the address of an object, and there are very few restrictions on what a pointer may Plint to. ...
... of the utility of a kJw-Ievel language stJCh as assembly language. One way C doe$ this is through its very general support for pointers.. A pointer in C represents the address of an object, and there are very few restrictions on what a pointer may Plint to. ...
Database Structures
... SYSTEM and SYSAUX Tablespaces – The SYSTEM and SYSAUX tablespaces are mandatory tablespaces. – They are created at the time of database creation. – They must be online. – The SYSTEM tablespace is used for core functionality (for example, data dictionary tables). – The auxiliary SYSAUX tablespace is ...
... SYSTEM and SYSAUX Tablespaces – The SYSTEM and SYSAUX tablespaces are mandatory tablespaces. – They are created at the time of database creation. – They must be online. – The SYSTEM tablespace is used for core functionality (for example, data dictionary tables). – The auxiliary SYSAUX tablespace is ...
Bitwise Operators
... • Consists of an array and a hash function. • Hash function maps input to an index in the associated array. • Allows us to check whether something is contained in a data structure without checking through the entire thing. ...
... • Consists of an array and a hash function. • Hash function maps input to an index in the associated array. • Allows us to check whether something is contained in a data structure without checking through the entire thing. ...
Ch. 6 Pointers and Data Structures
... • Table 6.3 illustrates typical termination codes. • Program 6.3 illustrates the use of the null termination code. • Program 6.4 illustrates a pointer method to access the array. ...
... • Table 6.3 illustrates typical termination codes. • Program 6.3 illustrates the use of the null termination code. • Program 6.4 illustrates a pointer method to access the array. ...
DSLec(Hashing). - CSE246DataStructures
... dictionary, implemented either in array or linklist. The algorithm examine each key; upon finding one that matches the search argument, its index or value is returned. In worst case, number of comparison are O(n). ...
... dictionary, implemented either in array or linklist. The algorithm examine each key; upon finding one that matches the search argument, its index or value is returned. In worst case, number of comparison are O(n). ...
CS 61B Data Structures and Programming Methodology
... immediately (constant time) if x is in the set. • What’s a situation where you can determine set membership in constant time? – The set contains integers with bounded values, i.e. for every x in the set, L < x < R, and L and R are known. ...
... immediately (constant time) if x is in the set. • What’s a situation where you can determine set membership in constant time? – The set contains integers with bounded values, i.e. for every x in the set, L < x < R, and L and R are known. ...
Control table
Control tables are tables that control the control flow or play a major part in program control. There are no rigid rules about the structure or content of a control table—its qualifying attribute is its ability to direct control flow in some way through ""execution"" by a processor or interpreter. The design of such tables is sometimes referred to as table-driven design (although this typically refers to generating code automatically from external tables rather than direct run-time tables). In some cases, control tables can be specific implementations of finite-state-machine-based automata-based programming. If there are several hierarchical levels of control table they may behave in a manner equivalent to UML state machinesControl tables often have the equivalent of conditional expressions or function references embedded in them, usually implied by their relative column position in the association list. Control tables reduce the need for programming similar structures or program statements over and over again. The two-dimensional nature of most tables makes them easier to view and update than the one-dimensional nature of program code. In some cases, non-programmers can be assigned to maintain the control tables.