Lecture-13 Structured Query Language (SQL) Introduction Commercial database systems use more user friendly language to specify the queries. SQL is the most influential commercially marketed product language. Other commercially used languages are QBE‚ Quel‚ and Datalog. Basic Structure The basic structure of an SQL consists of three clauses: select‚ from and where. select: it corresponds to the projection operation of relational algebra. Used to list the attributes desired in the
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An Essay on Shopaholism Based on the Movie “Confessions of a Shopaholic” (2009) “Confessions of a Shopaholic” is a 2009 movie adaptation of the Shopaholics Series written by British author‚ Sophie Kinsella. The series was a major success worldwide that marked the start of chick-lit trend (light‚ everyday literature for women)‚ which describes Becky Bloomwood as a young‚ attractive woman with a big heart‚ big dreams – and just one little weakness: her excessive lust in shopping According to Wikipedia
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1. What are some of the ways groups of people are identified? There are four ways a group of people can be identified are race‚ ethnicity‚ religion and gender. Within these four groups there are five characteristics that they all share that make them fall into a minority group. Those five characteristics are unequal treatment‚ distinguishing physical or cultural traits‚ involuntary membership‚ awareness of subordination‚ and in-group marriage. The racial group is a group of individuals that
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I don’t feel that the performance-based compensation for senior executive’s module is effective in the executive’s realm in every situation‚ in some companies it works and others it does not‚ it all depends the companies systems that are in place. As one article stated and I agree performance based compensation works best for routine job responsibilities such as the supervisors and lower hierarchy positions. This is a tool that can definitely motivate routine employees to work harder and strive for
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Architecture. MySQL is based on tiered architecture‚consisting of both subsystems and support components that interact with each othe to read‚parse‚and execute quaries‚and to cache and return query results. MySQL architecture consists of five primary subsystems that work together to respond to a request made to MySQL database server. 1) Query Engine SQL Interface The SQL interface provides the mechanisms to receive commands and transmit results to the user. The MySQL SQL interface was built
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There are many things within our environment that can have negative effects on human health some positive and some negative. Examples of negative effects would include air quality‚ noise pollution‚ greenhouse effects and the ripple effect on the food supply. The air quality index is a measure of daily air quality‚ the Air Quality Index (AQI) tells you how clean or polluted your air is and what associated health concerns you should be aware of such as allergic reactions. Conversely‚ indoor pollution
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SQL vs. Oracle Same to Oracle‚ Structured Query Language (SQL) is a special purpose designated programming language intended for utilization in managing data contained in relational databases. Despite the similarities‚ the two programming languages are different in a number of ways‚ which encompasses technical and application aspects. A conspicuous dissimilarity between the two programming languages is conceivable from their choices of operating system (OS) platforms. In regards to this statement
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Assignment Number: INN210.1 Assignment Name: SQL Assignment Weighting: 20%. Each of the tasks of this assignment is worth an equal amount. In general‚ part marks will be given for a partly correct answer‚ for each of the tasks. Due Date: Sunday‚ 14th September 2014 Rather than leaving it to the last minute‚ you are strongly encouraged to start working on this assignment at a much earlier stage. The relevant material is covered in Lectures 2 through 6‚ and in the corresponding
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SQL-QUERIES 1. Display all the information of the EMP table? A) select * from emp; 2. Display unique Jobs from EMP table? A) select distinct job from emp; B) select unique job from emp; 3. List the emps in the asc order of their Salaries? A) select * from emp order by sal asc; 4. List the details of the emps in asc order of the Dptnos and desc of Jobs? A)select * from emp order by deptno asc‚job desc; 5. Display all the unique job groups in the descending order? A)select distinct job from emp order
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SQL Server 2000 [pic] Microsoft SQL Server 2000 is a set of components that work together to meet the data storage and analysis needs of the largest Web sites and enterprise data processing systems. Features of SQL Server 2000 Internet Integration: The SQL Server 2000 database engine includes integrated XML support. It also has the scalability‚ availability‚ and security features required to operate as the data storage component of the largest Web sites. The SQL Server 2000 programming model
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