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What is the use of Rose leaf?
use of rose leaf
What could you use for ribosomes?
u could use energy
Can methylene blue expire?
If it has a use by date you are supposed to observe that date. I personally would ignore the use by date and use it
Do plants use some of the sugar molecules they produce?
Yes they do use SOME of the sugar they use. They either use it right away or use it for food. The rest that they don't use, they deposit to the soil to increase its furtility. i hope this was helpful.
Do cotton plants use photosynthesis?
All plants use photosynthesis.
What are examples of oodbms?
Hi, I need example an OODBMS. Can you send me examples? Thanks. Cátia Pereira
What is the difference between OODBMS and DBMS?
Object-Oriented Database Management System (OODBMS) stores data in the form of objects with attributes and methods, allowing for complex data structures and relationships. Traditional Database Management System (DBMS) stores data in structured tables with rows and columns, focusing on relational data models. OODBMS is better suited for applications with complex data structures and relationships, while DBMS is more widely used for simpler data storage and retrieval needs.
Compare and contrast rdbms with oodbms?
Relational database management systems (RDBMS) store data in tables with rows and columns, and use structured query language (SQL) for querying data. Object-oriented database management systems (OODBMS) store data as objects with attributes and methods, allowing for complex data structures and relationships. RDBMS are widely used for structured data while OODBMS are suited for applications with complex data structures and operations.
Is oodbms slower than relational dbms?
In general, oodbms can be slower than relational dbms due to the complexity of managing object relationships. However, this can vary depending on the specific use case and the way the databases are implemented. Factors like indexing, query optimization, and data retrieval methods can affect the performance of both types of databases.
What are the Advantage and disadvantages of OODBMS?
OODBMS completely negates "impedance mismatch": a problem always faced by a custom software development company in a Relational Database System. In RDBMS, there was enough wastage of time when objects had to be mapped with tables and vice versa. This is completely avoided with OODBMS.In OODBMS, data is described easily through class hierarchy.IN RDBMS, users have to face problems when identifying the records. They had to ensure that no two records had the same primary key. OODBMS completely avoids this aspect because of its unique OIDs.Since interaction between objects and database is done transparently, there is no need for a query language to access data from an Object Oriented Database Management System. But one can still use queries in OODBMS.In OODBMS, a large class can hold several medium-sized classes, which can hold even more medium-sized classes. This means that OODBMs has the ability to handle complex data compared to RDBMS.
What is the difference between oodbms and ordbms?
Object-oriented database management systems (OODBMS) store data in a way that aligns with object-oriented programming concepts, allowing for complex data structures and relationships to be easily represented. On the other hand, object-relational database management systems (ORDBMS) combine relational database capabilities with object-oriented features, enabling users to work with both traditional relational data and more complex data types. ORDBMS often use SQL as the query language, whereas OODBMS may use object query languages.
What are limitations of object oriented database model?
Schema Changes: In an RDBMS modifying the database schema either by creating, updating or deleting tables is typically independent of the actual application. In an OODBMS based application modifying the schema by creating, updating or modifying a persistent class typically means that changes have to be made to the other classes in the application that interact with instances of that class. This typically means that all schema changes in an OODBMS will involve a system wide recompile. Also updating all the instance objects within the database can take an extended period of time depending on the size of the database.Language Dependence: An OODBMS is typically tied to a specific language via a specific API. This means that data in an OODBMS is typically only accessible from a specific language using a specific API, which is typically not the case with an RDBMS.Lack of Ad-Hoc Queries: In an RDBMS, the relational nature of the data allows one to construct ad-hoc queries where new tables are created from joining existing tables then querying them. Since it is currently not possible to duplicate the semantics of joining two tables by "joining" two classes then there is a loss of flexibility with an OODBMS. Thus the queries that can be performed on the data in an OODBMS is highly dependent on the design of the system.
List the advantages and disadvantages of OODBMS?
The advantages of OODBMS include; extensibility, expressive query language, improved performance, ability to handle many data types, enriched modelling capabilities and support for long transactions. The disadvantages are as follows; lack of standards, lack of experience, competition, compromised encapsulation due to query optimization and lack of a universal data model.
What database types is useful for storing java applets as well as processing large numbers of transactions?
OODBMS, object oriented database management systems
Structured types in object oriented database?
In object-oriented databases, structured types refer to user-defined data types that can be created to model complex objects with multiple attributes. These structured types are defined by specifying the attributes and their related data types, allowing for the creation of custom objects with specific properties. Structured types in object-oriented databases enable more flexibility and organization in representing complex data structures.
What is the difference between odbms and ordbms?
odbms stands for Object DataBase Management System & ordbms stands for Object Relational DataBase Management System odbms supports complex data-types. ordbms is one of the two approaches derived from odbms.(second one is oodbms). ordbms can be thougth of as an attempt to extend rdbms.
What is the difference between object-oriented database and relational database?
A Relational Database is designed and maintained following some very well defined rules of logic and algebra. It often portrays a "one to many" relationship between two sets of data, and, less often, a "one to one" and "many to many" relation can be developed. An OO database uses less rigid design parameters, and can be adjusted design-wise to fit almost any kind of data environment. In fact, I'm not absolutely sure there is such a thing as an "object oriented" database, so much as there are database objects that are created and maintained with OO programming. I know that sounds self-referenceing, but that's OO for you... A relational database uses structure to locate and display data values, rather than programming logic. With a correctly designed RDB, finding and displaying data is very simple, compared to earlier network databases. Relational databases also permit the use of JOINS to merge and match sets of data ("relations"), to glean more information from your database that would normally be available.
