Có 20+ tài liệu thuộc chủ đề "Giáo trình NIIT Quarter 2"
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Identify the stages in the Database Development Life Cycle (DDLC) Identify the effects of poor database planning and design. Identify the stages in the Database Development Life Cycle (DDLC). In addition, this lesson explains the need for database planning and design and the stages in the database development life cycle.. One of the major tasks in a computer system is...
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Describe the types of data models Create an entity-relationship model. Data Models Lesson 2 / Slide 1 of 14. Data Models. Describe the types of data models. The lesson identifies the types of data models. This lesson also explains the entity- relationship model and the relational model. The scope of the database is determined at which stage of the DDLC?....
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Relational Database Design 1C.2. Collaborate Lesson 1C / Slide 1 of 20. In this section, you will learn about the following:. Relational Database Design 1C.4. Collaborate Lesson 1C / Slide 2 of 20. In the network model, data is represented using a collection of records.. In the hierarchical model, records are organized in a tree-like structure.. Lesson 1C / Slide...
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He wants to display the following:. All details of the employees in the Finance division.. The result will be the following table:. Jack has created a table to store records of the regular. He has also created another table to store the records of the regular suppliers and the product they supply. He needs to create a third table, Customer-Supplier...
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Map an E/R Diagram to Tables in relation to the following:. Logical Database Design Lesson 2A / Slide 1 of 15. Logical Database Design. Map an E/R diagram to tables in relation to the following:. This lesson also contains tips for logical database design and covers the various types of keys and their applications. Logical Database Design Lesson 2A /...
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Describe the first, second, and third normal forms Describe the Boyce-Codd Normal Form (BCNF) Appreciate the need for denormalization. Normalizing and Denormalizing Data Lesson 2B / Slide 1 of 18. Normalizing and Denormalizing Data. Describe the Boyce-Codd Normal Form (BCNF). Normalizing and Denormalizing Data Lesson 2B / Slide 2 of 18. Which of the following options is true?. The primary...
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Collaborate Lesson 2C / Slide 1 of 25. Collaborate Lesson 2C / Slide 2 of 25. A domain is a set of data values that are of the same type.. However, every value in the domain may not appear in the table.. A domain is a set of data values that are of the same type. Attribute CITY in the...
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He needs to review the weekly sales record of the store. Therefore, we need to create a separate table, Customer as follows:. C_ID C_Name. Therefore, we need to create another table, Bill as follows:. Therefore, we need to create another table Item as follows:. STUD-ID NAME BATCH-NO. The bank wants to keep a record of the birth dates of individual...
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A table is said to be in the. when each cell of the table contains precisely one value.. The information in parentheses includes the column names or attributes of the customer table. The size of the column is specified in parentheses after the name of the data type.. The primary key is also defined in the above statement by using...
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Implementing Transaction and Security Lesson 3B / Slide 1 of 25. Implementing Transaction and Security. Implementing Transaction and Security Lesson 3B / Slide 2 of 25. Which type of view includes all rows but only some columns of the source table?. Implementing Transaction and Security Lesson 3B / Slide 3 of 25. Implementing Transaction and Security Lesson 3B / Slide...
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Collaborate Lesson 3C / Slide 1 of 22. In this section, you will learn about the following:. Collaborate Lesson 3C / Slide 2 of 22. This is the basis of the relational model.. The guaranteed access rule: Every data value in a relational database should be logically accessible by specifying a combination of the table name, the primary key value,...
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Similarly, in C#, the classes in a program can be related to each other. You can make the following observations:. Consider the following example:. The following figure is an example of the hierarchy establishing the inheritance relationship of the Mammals class.. In the preceding figure, notice there is a set of classes: mammals , dogs , cats , humans. Mammals...
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The file is a stream of characters or a flow of related data. This chapter introduces the concept of the file input and output operations. It explains the process of reading and writing in the text files and the binary files. Implement the file input and output operations Implement read and write in text files. The file is a collection...
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Exception Handling Ch. An exception is termed as an abnormal condition encountered by an application during execution.. ¤NIIT Exception Handling 10.3. An exception is an erroneous situation that occurs during program execution. When an exception occurs in an application, the system throws an error. For example, the System.IO.IOException error is thrown when you try to access an illegal stream object....
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Introduction to the Object-Oriented. Object-Oriented Programming (OOP) is one of the most popular methodologies in software development. This chapter introduces object-oriented methodology and discusses the concepts of objects, classes, messages, and methods. It provides an overview of the phases involved in object-oriented analysis and design. Explain features of the object-oriented methodology. Describe the phases of the object-oriented methodology. An object...
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Define the life cycle of a thread Implement multiple threads Identify the thread priority Use synchronization in threads. The Thread Model. This results in the wastage of the CPU time.. In a single-threaded application if the thread is suspended from execution because it is waiting for a system resource, the entire program stops executing. In C#, you will use the...
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A variable is a location in the memory that has a name and contains a value. The following rules are used for naming variables in C#:. The following are examples of valid variable names:. The following are examples of invalid variable names:. You can declare and initialize variables by using the following syntax:. In the preceding syntax, the <data_type>. Consider...
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The method can be activated at the occurrence of an event, where an event is associated with the delegate to call the method at run-time.. Delegates in C# allow you to dynamically change the reference to the methods in a class.. The methods that can be referenced by a delegate are determined by the delegate declaration. The delegate can refer...
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Consider the following expression:. The following table explains the usage of the increment and decrement operators.. If the initial value of X is 5, after the execution of the preceding statement, values of both X and Y will be 6.. If the initial value of X is 5, after the execution of the preceding statement, value of X will be...
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This chapter discusses attribute syntax, and how to use some of the predefined attributes. incorporated as a part of the runtime and .NET Framework Software Development Kit (SDK).. Attributes are applied to different elements of the code. Information about attributes is stored with the metadata of the elements they are associated with.. The following syntax enables you to specify an...