Role of system analyst
The system analyst is a person who is thoroughly aware of the system and guides the system development project by giving proper directions. He is an expert having technical and…
System Development Life Cycle
Systems and Development Life Cycle (SDLC) is a process used by a systems analyst to develop an information system, including requirements, validation, training, and user (stakeholder) ownership. An effective System…
Types of Systems or Classification of System
The systems can be divided into the following types − 1.Physical or Abstract Systems Physical systems are tangible entities. We can touch and feel them. Physical systems may be static…
Elements of a System
The following diagram shows the elements of a system − Outputs and Inputs The main aim of a system is to produce an output which is useful for its user.…
System Characteristics
Systems also exhibit certain features and characteristics, some of which are: Objective Every system has a predefined goal or objective towards which it works. A system cannot exist without a…
What is a System?
The word System is derived from the Greek word Systema, which means an organised relationship between any set of components to achieve some common cause or objective. A system is…
Systems Design
It is a process of planning a new business system or replacing an existing system by defining its components or modules to satisfy the specific requirements. Before planning, you need…
Systems Analysis
It is a process of collecting and interpreting facts, identifying the problems, and decomposition of a system into its components. System analysis is conducted for the purpose of studying a…
What do you understand by JDBC Statements?
JDBC statements are basically the statements which are used to send SQL commands to the database and retrieve data back from the database. Various methods like execute(), executeUpdate(), executeQuery, etc.…
What is the difference between execute, executeQuery, executeUpdate?
Statement execute(String query) is used to execute any SQL query and it returns TRUE if the result is an ResultSet such as running Select queries. The output is FALSE when there is…