Description about the database:-
Deductive database systems are database management systems which are basically designed around a logical model of data. In this type of database systems deductions are made based on the rules and facts stored in the database. We use a language called Datalog which are typically used to specify facts,rules and queries in database. Deductive Database is an advanced form of relational database. When we compare deductive database with relational database we can find that deductive database is more expressive than relational database but, when it is compared to logic programming system it is less expressive. These type of databases use many of the concepts which are specified in logic programming; rules and facts specified in the deductive database language. Deductive database have the additional feature of storing rules that enable inferences based on the stored data to be made. The explicit information is stored in the same manner as that of a relational database. So, deductive are mainly useful and more capable of storing large amounts of information and also perform reasoning based on the acquired information. Deductive has an additional i.e. it is declarative too. Instead of showing how to perform the operation it allows the user to query or update by saying what he or she wants.
Database Management Systems supporting Deductive Database
One of the Database Management Systems that uses deductive database is:- SQUALID. The SQUALID database management system uses squalid query language. This is an extension to SQL query language. The reason for this extension is SQL query language is not efficient enough from deductive point of view and lacks the capacity to manipulate/create rules.For this purpose...
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...rm. For this deductive database is used.
Natural language parsing system AMOS uses Deductive Database LOLA. With the help of SQL interface automatic access is provided to external relational database system by LOLA.
Apart from these it is also used in
• Artificial Intelligence
• Semantic networks
• Frames
• Production systems
• Rules for capturing domain-specific knowledge
Market share of deductive databases:
Market share of these databases is not very high. The reason for it is this type of database is a bit complicated to implement. Most of the market share is being occupied by MySql database making it the most popular database with approximately more than 65000 downloads per day. The use of Deductive database is very limited till now so it is unable to occupy any huge market share. Still new advances need to be embodied to make it a successful database system.
Deductive reasoning is a logical way to increase the set of facts that are assumed to be true. The purpose of Deductive reasoning is to end up at a logical conclusion based on the subject of discussion. Deductive Reasoning uses statements that are logically true in order to omit other statements that contradict the logically true statement, which is to deduce, subtract or takeaway. What
The first database systems were based on the network and hierarchical models. A database can be defined as a collection of non-redundant data which can be shared by different application systems. A database implies separation of physical storage from use of the data by an application program to achieve program/data independence. Using a database system, the user or programmer or application specialist need not know the details of how the data are stored and such details are usually "transparent" to the user. .
Databases always used to fascinate me from my under graduation with great curiosity to know how large data is managed and queried. This led me to do Masters in computer science concentrating in the field of Data Management. In the course of my study, I understood the concepts of DBMS which provides a robust and efficient way of managing and mining data. Through the courses like Database Systems (ITCS 6160), Knowledge Discovery in Databases(ITCS 6162) and Knowledge Based Systems(ITCS 6155) I gained enough theoretical and practical knowledge about the importance of proper organization of data, good techniques to build an efficient database management system and how well the data can be managed.
In 1977, Larry Ellison, Bob Miner, and Ed Oates founded System Development Laboratories. After being inspired by a research paper written in 1970 by an IBM researcher titled “A Relational Model of Data for Large Shared Data Banks” they decided to build a new type of database called a relational database system. The original project on the relational database system was for the government (Central Intelligence Agency) and was dubbed ‘Oracle.’ They thought this would be appropriate because the meaning of Oracle is source of wisdom.
According to Babbie (2013, p.52) deductive theory construction has following steps. First step, researchers need to select a topic that interest to them. However, selected topic may be broader meaning. If it is, researchers should refine the topic to be specific. Then researchers should check that topic whether it
For this coursework two kinds of data models can be used. The object oriented data model, Object Oriented Database Management System(OODBMS), or the relational data model, Relational Database Management System(RDBMS). The differences between these two models and the data model to be used are described in this chapter.
Deductive reasoning is a concept focused on logical arguments. It uses arguments that conclusions’ typically follow from a premise. To draw a correct conclusion, the individual must assume the premises to be true without the use of previously learned knowledge to reason on the premises at hand. The individual will then declare a valid conclusion, which has to be logically correct, based on the truth of the premises. However, conclusions can still be incorrectly stated if a
A database is a collection of data which is organized and easy for users to find data. Database can record massive amount of data, it can be use for business and organization’s purpose. Every organization should have database security to secure the information of the organization.
Abstract: Some of the uses of logic are illustrated, and deductive arguments are briefly distinguished from inductive arguments.
A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
Deductive logic is logic where genuine properties mature a correct and rational interpretation. This kind of logic interpretation has to be correct, and it uses general guidelines to construct a detailed conclusion. It begins with an original statement, or assumption, then research the chances to achieve a detailed judgement. This form of analysis starts at a usual, theoretical stage, and then works its technique down to a more precise and solid stage. With this kind of logic, if something is establish to be correct for a variety of items, then it is established correct for all items in that group in general.
Data Manipulation Language Data Manipulation refers to data retrieval from the database, data insert into database, modify data of the database and delete data from the database. Since these operations can manipulate data in the database, the language is called as Data Manipulation Language. There are two main types off DMLs. They are as follows: 1. A high-level or procedural DML can be used to specify complex database operations concisely. 2. A low-level or procedural DML must be embedded in a general-purpose programming language. This type of DML retrieves individual records or objects from database and processes each separately. Data Manipulation Language in database management system consists of the following commands : SELECT – Data retrieval
Deductive reasoning is general information people have and use to reach to some type of conclusion. Deductive is done by understanding the first part which is using logic to reach a conclusion which reasoning is to understand what is going on. There are many different ways to explain what is required of deductive reasoning. For example, in an article, it states, “logical way of reaching a conclusion based on ded...
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
A data warehouse comprised of disparate data sources enables the “single version of truth” through shared data repositories and standards and also provides access to the data that will expand frequency and depth of data analysis. Due to these reasons, data warehouse is the foundation for business intelligence.