What are the functions of database management software (DBMS) Name .pdf

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What are the functions of database management software (DBMS)? Name some common database management software. Solution Functions of Database Management Software are:- 1. Data Dictionary Management - where the DBMS stores definitions of the data elements and their relationships. This function is used by DBMS to look up the required data component structures and relationships. 2. Data Storage Management - This function is used for the storage of the data and related entry forms, report definitions, procedural code, data validation rules, and structures that can handle video and picture formats. 3. Security Management - sets rules that determine specific users that are allowed to access the database through username and password provided to each user. 4. Multiuser Access Control - Data integrity and data consistency are the basis of this function. Multiuser access control is a very useful tool in a DBMS, it enables multiple users to access the database simultaneously without affecting the integrity of the database. Some common DBMS systems are Oracle database, Microsoft SQL, SAP, MySQL, Teradata, informix..

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We presented a list of capabilities that should be provided by the DBMS software to the DBA, database designers, and end users to help them design, administer, and use a database. Then we gave a brief historical perspective on the evolution of database applications. We pointed out the recent rapid growth of the amounts and types of data that must be stored in databases, and we discussed the emergence of new systems for handling \"big data\" applications. Finally, we discussed the overhead costs of using a DBMS and discussed some situations in which it may not be advantageous to use one. Define the following terms: data, database, DBMS, database system, database catalog, program-data independence, user view, DBA, end user, canned transaction, deductive database system, persistent object, meta-data, and transaction-processing application. What four main types of actions involve databases? Briefly discuss each. Discuss the main characteristics of the database approach and how it differs from traditional file systems. What are the responsibilities of the DBA and the database designers? What are the different types of database end users? Discuss the main activities of each. Discuss the capabilities that should be provided by a DBMS. Discuss the differences between database systems and information retrieval systems. Identify some informal queries and update operations that you would expect to apply to the database shown in Figure 1.2. What is the difference between controlled and uncontrolled redundancy? Illustrate with examples. Specify all the relationships among the records of the database shown in Figure 1.2. Solution I. Data: data is simply called as collection of objects. Data base : data base is collection of information which is organised in so the information can be accessed very easily. Data base Management System: it is a computer software. it creates and manages database.it also capture and analyses the data. Data base System : it is a highlevel definition which relates the structure and relationship between stored data. Database catalog : database catalog consists of tables, views, synonyms, value ranges, indexes, users, and user groups are stored. program data independence: Data independence is the type of data transparency that matters for a DBMS. User View: It is some set screens which appears for a user to select a certain actiomn or option. DBA: DBA refers to data base adminstrator he controls all the action with respect to data base. End User: end user is a person he will use the product after it is developed fully. Canned Transaction : It is a standard type of query and updates that have been carefully programmed and tested. deductive database: A deductive database is a database system that can make deductions (i.e., conclude additional facts) based on rules and facts. Persistent objects: These are the fundamental logical units of data storage in a database. Meta data: meta data is a data which provides the information of other .

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Many biologists will talk about the group known as Ungulates, or hoofed mammals. This group includes species as diverse as pigs (Sus), elk (Cervus), cows (Bos), hippos (Hippopotamus), extinct species (e.g., Elomeryx and Archaeotherium), and even rhinos and horses (Equus). Based upon the tree above and assuming this tree is correct, is this group (Ungulates) monophyletic?A. Yes, because all of these species share the synapomorphy of hooves Solution b. Yes, because all of these species share a most recent common ancestor All the members of the group of interest are more closely related to each other than they are to the outgroup. Hence, the outgroup stems from the base of the tree. An outgroup can give you a sense of where on the bigger tree of life the main group of organisms falls. It is also useful when constructing evolutionary trees..

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Match the function with the appropriate organelle in the column at right. Endoplasmic reticulum Smooth endoplasmic reticulum Rough endoplasmic reticulum Golgi complex Transport vesicles Secretory granules Endosome Lysosome Mitochondrion Chloroplast Plasma membrane Nucleus Location of most of the cell\'s DNA site of fuel oxidation Separates the inside of the cell from the outside Carries important biochemical into the cell Membrane with ribosomes attached Site of photosynthesis Contains digestive enzymes Destined for fusion with the plasma membrane 9 Common form of cytoplasmic membrane Site of carbohydrate addition to proteins Processes exogenous chemicals Facilitates communication between the rough endoplasmic reticulum and the Golgi complex Solution Please find the correct matches with reasons in parenthesis: a. Endoplasmic reticulum : 9 (the endoplasmic reticulum is normally found concentrated near the nucleus and is considered as a physical extension of nuclear membrane only) b. smooth endoplasmic reticulum: 10 (smooth ER represents the site for protein modification by glycosylation) c. rough endoplasmic reticulum: 5 (this is the site for protein synthesis) d. golgi complex: 12 (the proteins released for rough ER are transported to smooth ER for post translational modification such as glycosylation via the golgi complex only) e. transport vesicles: 4 (the transport vesciles pinch off the golgi complex for tranversing the material from one part of cell to the other) f. Secretory granules: 8 (secretory granules are released from one cell for extracellular transport which ultimately fuse with plasma membrane of other cell for inlet of the materials) g. endosomes:11(endosome is the first vesicle which ingest any foreign material and processes it) h. lysosomes: 7 (this contains hydrolyzing enzymes which help in digestion) i. mitochondria: 2 (known as energy house of the cell by oxidative phosphorylation) j. chloroplast: 6 (found only in green plants and lower organisms, chloroplast is the site of photosynthesis) k. plasma membrane: 3 (it represents the boundary of the periphery of a cell for discrimination between inside and outside) l. nucleus: 1 (this contains the genetic material i.e. DNA of the cell).

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