Contents ERD (Entity Relation Diagram) 2 2.1 History of ERD 2 2.2 Building Blocks 2 2.2.2 Relationship 2 2.3. Diagramming Conventions 3 MS ACESS TABLE 5 3.1 Parts of Table 6 3.2 Creating Tables in Access 6 Chapter No 2 ERD (Entity Relation Diagram) 2.1 History of ERD An entity-relationship model (ERM) is an abstract and conceptual representation of data. Entity-relationship modeling is a database modeling method‚ used to produce a type of conceptual schema or semantic data
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God must exist‚ be definition‚ so it cannot make any sense to say‚ "God does not exist." Squares do not need to exist‚ but it would be impossible to say that there was a 3-sided square. If there is a mountain‚ there must be a corresponding valley. If there is a valley; there must be a corresponding mountain. God must exist the way that all squares that happen to exist must have 4 sides. The problem of Descartes was‚ as we have
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Should the sexual double standard still exist? What is sexual double standard? Should both Men and Women judge one another on their sexual life? No‚ I do not think there should be a sexual double standard‚ but unfortunately it still exist. In today’s world everyone knows there is a double sexual standard. Ask any survey male or female and they’ll tell you that women are judged more harshly than men for engaging in the same actions‚ especially when those behaviors are casual sex or sex with lots
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TERNARY PHASE DIAGRAMS An Introduction Guna Selvaduray San Jose State University Credit for Phase Diagram Drawings: Richard Brindos Credit for scanning the phase diagrams: Brenden Croom G. Selvaduray - SJSU - Oct 2004 Utility of Ternary Phase Diagrams Glass compositions Refractories Aluminum alloys Stainless steels Solder metallurgy Several other applications G. Selvaduray - SJSU - Oct 2004 References on Ternary Phase Diagrams A. Prince‚ Alloy Phase Equilibria‚ Elsevier Publishing
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Unit 3 Discussion Board Sample Table for Monitoring Energy Usage When doing your 3-day review of your energy usage‚ remember that you can use 3 days from the past week‚ rather than tracking the upcoming 3 days. Most people use energy in the form of electricity in their homes and gasoline for transportation‚ but you might have a wood-burning fireplace or use natural gas or liquid propane in your home as well. Below is a sample table that you can use for this Discussion Board. Replace the sample information
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Page No ENERGY TYPES OF ENERGY ENERGY RESOURCES ADVANTAGES AND DISADVANTAGES ENERGY CONSERVATION REFERENCE ENERGY Energy is one of the most fundamental parts of our universe. We use energy to do work. Energy lights our cities. Energy powers our vehicles‚ trains‚ planes and rockets. Energy warms our homes‚ cooks our food‚ plays our music‚ gives us pictures on television. Energy powers machinery in factories and tractors on a farm. Energy from the sun gives us
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How to : Data Flow Diagrams (DFDs) Data Flow Diagrams (DFDs) Data flow diagram (DFD) is a picture of the movement of data between external entities and the processes and data stores within a system Order CUSTOMER Status Message Status Data 2.0 Shipping Confirmation In-Stock Request WAREHOUSE 1.0 Shipping Order Check Status Order Data D1 Pending Orders 3.0 Issue Status Messages Order Data Payment Invoice Manage Accounts Receivable 5.0 Accounting Data Accounts Receivable Data
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EXPLAIN WHY EFFECTIVE COMMUNICATION IS IMPORTANT IN DEVELOPING POSITIVE RELATIONSHIPS WITH CHILDREN‚ YOUNG PEOPLE AND ADULTS. Good communication is key to building strong and lasting relationships with children‚ young people and Adults. We begin this process with children as they start school‚ develop it as they grow older and maintain as we become adults. Clear communication is vital when working in a support role in an educational environment. Children beginning school for the first time will
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Why is there conflict with Iran? 1950-70’s the US supported the ______ or emperor of Iran. He was anti-____________ but he was a harsh ruler to the everyday Iranian. This leads to resentment against the US. 1979 there is the Islamic ______________‚ led by _______________________. Iranian revolutionaries took over _____ American hostages and held them for almost a year and a half. This led to social and political conflict between the US and Iran. Iran used to be a great empire and they wish to
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Title: Identification of Metallic Ions Purpose: To perform and observe the flame tests of some alkali and alkaline earth metal ions. Understanding Light Introduction: Electrons from an atom can absorb energy and become excited to move from the stable “ground state” energy level to a higher energy level. Imagine one of the electrons “jumping” from the second energy level to the unoccupied 6th energy level‚ then “relaxing” back to the 5th energy level. As these electrons relax and go
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