SQL injection

The differences in SQL and Relational Algebra are not that many. In fact, they are pretty much the same thing. Both of them have commands that need to be evaluated in order to get a result or a new table. In the SQL, we have commands that need to be followed step by step. For example, the first thing we need to know if we need to join tables. After that, we need to know what columns or fields we are putting as a result, then what table or tables are those columns coming from, and last if there…

Would war have such a negative connotation if there was no aftermath? No grief, no mourning, no rebuilding, no tensions, just an end. In short, that would be extravagant. Humans could fight, make a stand, change, and that would be it. Blissful. The reality presses down unrelentingly,as this will never happen. War is gruesome and malevolent affair with no victors. When the recovery period after war is considered, the price and the ensuing struggle, there is no escaping what has already been done.…

The schema above is the dimensional model for sale business process of Healthy Food Company. This company sales several types of healthy food on the internet. The company has two business requirements. First, the company would like to analyze daily quantity-on-hand inventory levels by products. In order to meet this requirement, I designed the dimensional model by using the periodic snapshot approach so the company could see the quantity-on-hand of each product at the end of the day. This…

The gradual transformation in data quantity has resulted in emergence of the Big data and immense datasets that need to be stored. Traditional relational databases are facing many difficulties meeting the requirements of the volume and heterogeneity structure of big data. NoSQL databases are designed with a novel data management system that can handle and process huge volumes of data. NOSQL systems provide horizontal scalability by supporting horizontal data partitioning across heterogeneous…

functions such as storing, retrieving, adding, deleting, and modifying data A built-in user interface that carry the activity of obtaining information resource from a collection of information stored EXAMPLE Microsoft Access, MySQL, Oracle, and Microsoft SQL Server Web search engine ADVANTAGES -Controlling data redundancy -Data consistency -Data sharing -Data integration -Integrity constraints -Data atomicity -Database access language -Development of application -Creating forms -Report…

supports advanced workload management, rich SQL and in database analytics. 9. All types of users Teradata can be used by all types of users from business users to application developers. It is best suited for business users because of its features of leading BI and flexible custom written business SQL. It is best for application developers because of its language choice and flexible application architecture. 10. Bi temporal You will not need any complex SQL condition clauses. Teradata makes it…

Data, information, knowledge and wisdom are referred to as the DIKW hierarchy model cited in Figure 1. This visual metaphor illustrates large amounts of data at the bottom of the pyramid which are reduced to smaller amounts of information consequently creating more condensed knowledge and even smaller wisdom. For Ackoff (1989) data is a symbol and does not have meaning on its own. Information emerges from data that has been processed and hence data has now been given meaning. Knowledge is built…

What is a relational database? It is a database that stores the information about both data, for example for a person detail that is link with their car details that they have bought it from the company. The data and relationships are showed in an entity which is in a flat, two dimensional tables. We would use a relational database in a company such as a car company so when they want to store their customers information and what car did they buy, they use a relational database which stores the…

Disadvantages: Hard to find expert user, poor monitoring tools Microsoft SQL server- According to the http://www.computerweekly.com/ it is the third biggest selling database eg TFL. According to the www.techwalla.com these are the advantages and disadvantages about MSQL: • Advantages- Enterprise-grade management software, excellent…

Big Data Maddu1c BIS 601: Information Systems Database is nothing but an organized collection of information which is enfolded in a computer, especially it is the one that is approachable in many different ways. A database is well constructed in such a way that it is good designed computer program which can quickly choose the required collection of data. A database is nothing but which is been organized by fields, records and files, a field is a solitary piece of information and record is one…