Each alternative is assigned with a certain pre-defined value selector , and the alternative with selector value that matches the conditional expression value will get executed. Example 1: Arithmetic Calculation using Case In this example, we are going to do arithmetic calculation between two numbers 55 and 5.
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Code line 6: Printing the statement "Program started". Code line 7: CASE checks the value of the expression.
This value will be treated as a selector for this CASE statement now. Code line Printing the statement "Program completed". Code Output: Program started.
Using NoSQL databases on an example
Multiplication of the numbers are: Program completed. The first WHEN clause that satisfies the condition will be executed, and the controller will skip the remaining alternatives.
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Example 1: Arithmetic Calculation using Searched Case In this example, we are going to do arithmetic calculation between two numbers 55 and 5. Division of the numbers are: 11 Program completed.
Specifically the following assessment mechanisms will be used. Continuous assessments during training to track learning. End of course project. Objectives: At the end of this module successful participants will be able to: Understand concept of OS. Understand Linux as open source OS. Work with Linux using basic commands. Browse file system.
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Work with bash shell. Understand users, groups and permissions. Design small scale Database.
Understand E-R model. Understand types, exclusive arcs and integrity constraints. Normalize data. Understand and describe Oracle database server. Objectives: At the end of this module successful participants will be able to: A summation of relational database principles and an introduction to the Oracle relational database server.
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Summarizing, grouping and sorting data. Advanced query techniques such as correlated subqueries. Creating and maintaining database tables.
Taking advantage of new features such as the use of regular expressions. Moving beyond basic table definitions, consideration of defining the full range of database objects, such as advanced table definitions, indexes, sequences, views and others.
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Understanding basic database security and object privileges. Using the powerful set of built-in SQL functions.
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Protecting the database and extending the basic data model using declarative constraints. Declaring program variables and complex data types. Fetching data from the database into program variables. Returning program output to users.
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