SQL

Not Only SQL (NOSQL) In this paper I will use comparisons to help distinguish what is NOSQL. We will talk about NOSQL vs SQL. Document, Graph, or Key-value and wide column Models of NOSQL. We will touch on Schema and end with a condensed comparison of SQL and NOSQL. In short, a brief overview of not only NOSQL but also its opposing and conjoining systems, and their pro’s and con’s. To really understand these comparisons, you need to have an Idea of what JavaScript and JSON are in addition to the LAMP and MEAN stacks. The term LAMP referrers to (Linux, Apache, MySQL (SQL), PHP). The LAMP stack is a common stack of open source and free languages. This stack uses Linux as the operating system Apache as the server, MQSQL as the Database and PHP…

SQL Injection An SQL Injection is the technique of inserting complete or partial SQL commands in user-supplied data fields of a web application and submitting them for execution by the database server. The SQL Injection is normally injected by attackers to compromise the security of a website, access private data and perform other unauthorized actions that a developer never anticipated. Overview Majority of businesses use website features such as contact forms, search functions, feedback…

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…

Structured Query Language (SQL) injection attacks have been around for nearly two decades and have posed a threat to companies and government agencies around the world (SQL Injection Defense, n.d). The former head of payment security for Barclaycard, Neira Jones, states; “some 97 percent of database attacks worldwide are still due to SQL injection somewhere along the attack chain (SQL Injection Defense, n.d). A SQL injection attack can lead to an unauthorized access to database content and web…

2. D H C I J E K A B F G 4. SQL-92 was a major revision and was structured into three levels: Entry, Intermediate, and Full. SQL:1999 established the core-level conformance, which should be met before any different level of conformance is achieved; core-level conformance needs are unchanged in SQL:2008. In addition to fixes and enhancements of SQL:1999, SQL:2003 introduced a new set of SQL/XML standards, three new knowledge sorts, various new inbuilt functions, and improved methods for…

Policy-based management: SQL server has a feature called policy-based management which is used to define and also implement policies in SQL server. It is used if we want to apply any policy against a table or database and then checks whether the database or table satisfies with the given policy. If target database objects are not satisfied with the policies then either a trigger should be fired or we can enforce it so that an administrator will come to know that there is some policy violation.…

as the spreadsheets, word files and other smaller application which form one main database and this is the End-User database. It is normally used by small workstations. Oracle is one of the main database products that is used within organisations, it is also referred to as Oracle RDBMS (relational database management system). Another database product that is the Microsoft SQL (structured query language) server which is also a relational data base system management. These data bases essentially…

big data. To increase the performance of DBMS for big data storage needs, partitioning the data across several sites and paying big license fees for enterprise SQL DBMS might be the two possible options (Stonebraker, 2010), however they are not even without disadvantages such as inflexible data…

Simply describe what is a DML statement is when you executed? DML statements are executed when we adding new rows to the table. It executed when modifying the rows of a table and when removing rows from the table. When inserting rows with Null values, what methods can be used? The methods used for inserting rows with null values are, • Implicit method • Explicit method Briefly describe how to creating a script that input value on SQL statement execution run times? SQL scripts can be created…

performance and security. In the ever-changing world of technology, there have been many clear advancements in the space of databases. Two very common databases are MySQL and MongoDB. They are similar in many ways and also very different in how they deal with data. We will look at how they execute read queries and see what those similarities and differences are. Part 1: How a MySQL query is prepared and executed. For us to understand how a SQL database differs in running queries we…