Are you in search of an expert who can help with assignments of SQL? Do you have the time constraint for doing your SQL assignment or SQL homework? Do you need help in assignments of SQL to secure good grades? If the answer to these questions is YES, you have to turn to the SQL experts that have deep domain knowledge and academic experience to help you.
SQL as it is popularly known as structured query league is basically based upon relational algebra. This study is very vast in scope. It mainly consists of date insert, query, update and delete and various applications. This study further includes data creation, modification and control. The subject was first study by Edger F. Codd in the year 1970. He published a paper ”A Relational Model of Data for Large Shared Data Banks” and became the most widely used language for relational databases.
Read:
SQL was developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s. This version, initially called SEQUEL (Structured English Query Language), was developed to manipulate the data base management system (dbms) which was developed in the laboratory of the IBM. The acronym SEQUEL was later changed to SQL because “SEQUEL” was a trademark of the UK-based Haker Siddeley aircraft company.
The first developed was RDMS which was followed by various innovation. The first development was done in 1970 and soon a new development took place in 1974 known as QUEL, which was later supplanted in the marketplace by SQL.
In 1970s, oracle saw a huge potential in this field and saw a business opportunity in this. They had an aspiration to sell the product to to US navy, CIA and various other government organisations. In June of 1979, Relational Software, Inc. introduced the first commercially available implementation of SQL, Oracle V2 (Version2) for VAX computers. Oracle V2 beat IBM’s August release of the System/38 RDBMS to market by a few weeks.
After testing SQL at customer test sites to determine the usefulness and practicality of the system, IBM began developing commercial products based on their System R prototype including System/38, SQL/DS, and DB2, which were commercially available in 1979, 1981, and 1983, respectively.
More: