reference: http://www.tutorialspoint.com/sql important: constrains: SQL constraints are used to specify rules for the data in a table. If there is any violation between the constraint and the data action‚ the action is aborted by the constraint. In SQL‚ we have the following constraints: NOT NULL - Indicates that a column cannot store NULL value UNIQUE - Ensures that each rows for a column must have a unique value PRIMARY KEY - A combination of a NOT NULL and UNIQUE. Ensures that
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TASKBAR In the graphical user interface (GUI) for a computer operating system or application‚ a taskbar is a visual device on the desktop that typically shows the user which applications (tasks) are currently active and running. Combined window management and program launching As noted above‚ the Windows 7 taskbar combines two previously separate bits of functionality: Open window management and program launching/file opening. Prior to Windows 7‚ the taskbar was generally used only to manage open
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Steps to Text Analysis Recommended Steps in Text Analysis Introduction: briefly define the text type (the functional style and the genre)‚ the topic‚ the problems raised‚ the cultural and historical background of the author and his text. Useful tips: The first step includes defining the type of the text you are analyzing. Does the text represent fiction/belles lettres style/non-fiction? Is it a whole text or an extract? If it is fiction what genre does the text represent? It should be noted that
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Thus the basic functions of an OS are – 1. Process Management – Managing the programs that are running. 2. Memory Management – Managing and rationing the memory between processes and data. 3. Storage Management – Managing the permanent Storage of data on disks or other media 4. I/O Management – Managing the input and output 5. Device / Resource Management – Managing devices and resources and allowing the users to share the resources 6. Security and Protection – Securing the
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STRATEGIC PLANNING: A TEN-STEP GUIDE* I. IMPORTANCE OF PLANNING There is broad agreement among nonprofit leaders and experts that planning is a critical component of good management and governance. Planning helps assure that an organization remains relevant and responsive to the needs of its community‚ and contributes to organizational stability and growth. It provides a basis for monitoring progress‚ and for assessing results and impact. It facilitates new program development. It enables an
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1/29 Function of nervous system Basically designed to keep you alive Essentially you can adapt to whatever environment you’re in and stay alive Adapt to be able to do behaviors Drugs have direct effect on NS Synaptic transmission Started out neuron centric until about 10 years ago Basically looked at how drugs affect neurons and what role neurons play in behaviors How neurons were communicating with other neurons or other cells in body All drugs changed what was happening at synapse
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10.1 STEPS IN SELECTION This concept is taken form module 12 “Human resource management”‚ sub-topic 1 “Recruiting and selecting”. Selecting is a process of choosing candidates who are fit for a position or it is a process of rejecting or eliminating candidates who are unfit for a position. In selection‚ certain standards are followed in order to know or to set principles in order to get qualified people for a job position. Selection is a negative process because it entails choosing qualified people
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21 Basic Tools in Visual Basic 0.6 Control Description Pointer Provides a way to move and resize the controls form PictureBox Displays icons/bitmaps and metafiles. It displays text or acts as a visual container for other controls. TextBox Used to display message and enter text. Frame Serves as a visual and functional container for controls. CommandButton Used to carry out the specified action when the user chooses it. CheckBox Displays a True/False or Yes/No option. OptionButton
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the same processes that are at work today were at work in the past. Summarized by “The present is the key to the past.” Hutton recognized that time is the critical element to the formation of common geologic structures. Uniformitarianism is a basic foundation of modern geology. Although catastrophism was abandoned‚ there is certainly evidence that sudden events do occur. From space‚ Earth looks small‚ finite and fragile. What’s the first thing that you notice about our planet when
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Osmosis Case study You are a veterinarian working in Indooroopilly and return from lunch to find a nurse treating a six year old kelpie‚ Baxter. Baxter is very lethargic‚ has an increased heart rate‚ and when you pinch his skin the fold remains visible. The owner tells you that they knew something was wrong when‚ upon returning to the outdoor car park from a three hour shopping trip‚ they saw Baxter passed out on the back seat. The temperature in the car would have been very high and Baxter
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