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What is Software process framework And, Umbrella activities

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  ❖ Software generic process framework activities .   A process framework establishes the foundation for a complete software process by identifying a small number of framework activities that are applicable to all software projects, regardless of their size or complexity. • In fig each framework activity is populated by a set of software engineering actions. A collection of related tasks that produces a major software engineering work product. • Each action in process framework is populated with individual work tasks that accomplish some part of the work implied by the action. 1. Communication: Communication framework activity involves heavy communication and collaboration with the customer,encompasses requirements gathering, data gathering and other related activities. 2. Planning: Planning activity establishes a plan for software engineering work that follows. Planning describes the technical tasks to be conducted, the resources that will be required, schedule, and the risks...
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DCL-Data Control Language And TCL -Transaction Control language

DCL-Data Control Language  TCL -Transaction Control language DCL-Data Control Language:- The data control language is use to give permition and revoke the permition, To perform any for operation in the database then user need permition like inserting data of reating record deleting data or view record. The record for  In data control language there are mainly two command. 1.Greant command 2.Revoke command 1.Greant command:- The Greants command is use to given in the permission to user after that this user perform operation on database generally a grent statement is use by owner of table.  When we give permission to that user then this user must be present in the database. Syntax-Grent permission on table name to user name.  There are various permission that is given below  2.Revoke command:- W e can reject the permission given to database particulars user with the help revoke command. Syntax-Revoke permission on table name from username.  To remove the perm...
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What is Relational structure, Table, Attributes, Rows Record, Domain, Super key, Composite key, Candidate key, Primary key, Foreign key

Table:- The table in a database has it unique name in the relational in table consisting  Horizontal    rows that is also called as  Tuple s fore the Vertical  columns also called as attributes. Each table row represent a single entity  Occurrence  withing the entity set.  Attributes:- In the above table column represent data stored in it such column is called as attributes. Ex-Name id (column name) every cans a table must have at least one column. The squle standard does not be specify in in only maximum number of column in a table. Rows Record:- In a single row in a relational table which contain all information about. A single entity each horizantal row of student table represent the student record and in the and table there are multiple row. Domain:- The every column in a table has set of data values that are allowed for that column that is called as domain. In a relational table a domain can have a single value or null values  .Type...
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What is Database Schema

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Database Schema Database Schema:-The description of data in terms of data model of called as database schema. Which is specified unique database design and it does not expect to change frequently. A Database schema is the structure of database which represent physical view a logical view and entire database. It define how the data is arranged and how the relations among them are associated. .Types of Schema  1. Physical schema 2. Logical schema 3. View Schema  1.Physical schema :-Physical schema is also known internal schema the design of the database at a physical level is called as Physical schema . How the data is stored in storage is explained at this level   2. Logical schema:- The design of database at logical level is called as logical. The level gives a tabular structure of data    3. View Schema:- It is also known as external schema. The design of database at view level is called as view schema. This generally refer user and database system interac...
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What is Relational data model (RDM)

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Relational data model:- In the concept of relational database that in a management system data is organized into tables. table are divided or into column and rows column represent the attributes of entity and row represent data or entities. A relational model is a powerful tools for a organizing and manipulating data and it is relatively int to understand  .Advantages of relational model 1. Simple and easy to use -starting data in table in much easier to under stand and implement as compared with other storage techniques. 2. Manage ability -Because of the indapendent natural of each relation in a relational data base it is easy to manipulates and manage this is a improve the performance of database   3. Data inigrity-The relational model can maintain data the  intigrity in the database .Disa dvantages of relational model   The performance of relational model depends upon the number of relations present in data base. If the number of table increase then requireme...
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What is Hierarchical Data Model and Network data model

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1.Hierarchical Data Model:- A  Hierarchical Data Model request the data in tree like structure in which there is a single parent for each record. To maintain order there is a sort fields which. keep sibling in (child node) into a recorded manner.  This type of models are designed basically foe the early main frame database management system like the information management system This model allow one to one and one to many relationship between various type of data . The hierarchical structure is used as the from a physically order of record on storage  .Advantage of hierarchical model  A user can retrive data very quickly due to the presence of explicit links between the structure .Disadvantage   of hierarchical model     This type of database connect support complex relationship. When a user need to store the record in child to table that is currently to the unrelated to any record in a parent table than it gets difficult to record the user d...
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What is Thread Priority,Thread Exception and Thread Synchoranization

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Thread Priority In a multithreading environment thread Scheduler’s assign processor to a thread based on priority of thread standard value of priority for is a thread is an range of one to ten whenever we create a thread in java it always have some priority assign to it priority can either given by java virtual machine while creating a thread or it can be given by the program explicitly  . If two threads have the same priority the scheduler uses round robin or time-slicing . . Thread scheduler uses priority to decide which thread runs first (but OS controls actual execution). Range of Thread Priority .Java defines thread priorities asintegervaluesbetween 5  and15        . Thread MIN PRIORITY=5 (Lowest priority)                                    .Thread NORM PRIORITY=10 (Default priority)   .Thread MAX PRIORITY=20 (Highest priority) .Thread Exception  ...
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Sona ke Bhaw kam ho gaya

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  Big fall in gold prices There has been a huge fall in gold prices today. The price of the purest 22 carat gold has seen a fall of up to Rs 2500. Currently, 22 carat gold is available at Rs 99,440 per 10 grams. This fall is good news for both investors and common buyers. 20 carat gold has also seen a huge fall. Its price has fallen by Rs 1800 and it is now available at Rs 90,250 per 10 grams. This is the gold that is commonly used in making jewelry as it has good strength. .Gold Rate : Today there has been a tremendous fall in the prices of gold and silver, which has created a wave of happiness among the buyers. This fall is very beneficial for those who were waiting to buy gold and silver for a long time. After the continuously rising prices, it is a relief news that finally there is some stability in the market and customers have got a chance to breathe a sigh of relief. .Future prospects and investment opportunity:  According to the market experts, the prices of gold and s...
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