Computer Science & Engineering 2111 Database Objects 1 CSE 2111 Introduction to Database Management Systems

l Tables - a list of data organized into fields and records l Queries - question structures to sort, filter and select specific information l Forms - structures for screen views of data l Reports - structures for written output of data l Program Modules & Macros - program code to perform specific actions Access DBMS “objects”: CSE 2111 Introduction to Database Management Systems 2

What is a database Form? Structures for screen view and input of information Used to simplify viewing and inputting of information Datasheet View Form View CSE 2111 Introduction to Database Management Systems 3

Structures for viewing written output of information What is a database Report? CSE 2111 Introduction to Database Management Systems 4

Defining Properties for each Field in a Table For a person’s social security number use: What field type? – Text, Number - Short Integer, Number- Long Integer etc. Should it be optional or required? Does the value need to be within certain limits or from a predefined list? Is there a default value? Would an input mask be appropriate CSE 2111 Introduction to Database Management Systems 5

How should you decide what information goes on which table? If a fact appears in more than one record of a table, then this fact should probably be defined in another table. – Example: Account number Each fact should change in only one place – Example: Address Calculations shouldn’t be part of the database – Example: Current Balance Select a Primary Key where applicable so you can relate your tables – Example: Account number CSE 2111 Introduction to Database Management Systems 6