What is SQL and How to Design

SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s.┬áThis version, initially called SEQUEL, was designed to manipulate and retrieve data stored in IBM’s original quasi-relational database management system, System R, which a group at IBM San Jose Research Laboratory had developed during the 1970s. The acronym SEQUEL was later changed to SQL because “SEQUEL” was a trademark of the UK-based Hawker Siddeley aircraft company.development

In the late 1970s, Relational Software, Inc. saw the potential of the concepts described by Codd, Chamberlin, and Boyce, and developed their own SQL-based RDBMS with aspirations of selling it to the U.S. Navy, Central Intelligence Agency, and other U.S. government agencies. In June 1979, Relational Software, Inc. introduced the first commercially available implementation of SQL, Oracle V2 for VAX computers.

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.


SQL deviates in several ways from its theoretical foundation, the relational model and its tuple calculus. In that model, a table is a set of tuples, while in SQL, tables and query results are lists of rows: the same row may occur multiple times, and the order of rows can be employed in queries.

Critics argue that SQL should be replaced with a language that strictly returns to the original foundation: for example, see The Third Manifesto.

Source from Wikipedia

This blog will be the source for learning about this coding and more. We will also focus on web design, SEO, and digital marketing. We are self-taught and had to go through many struggles to get to where we are now. For instance, the most common time you will be dealing with these databases is when you are transferring a site to a new host or URL. This usually an easy thing but there are many things that can go wrong. The first step is to export your database – this step is very straight forward. There is one important note to keep in mind is the PHP my admin version you are using. Make sure that you are using a compatible version within your new site. In most cases, if you are using WordPress, one of the only things you have to change is the wp-options file. You must change the old URL to the new one you are using. Once you upload your original files you will be prompted to install a new version of WordPress. This you must do to continue. Most of the time you will run into issues with plugins. The best way to treat this is to disable them all and reactivate them one by one to find the conflicting plugin. If you delete it and reinstall it – you most likely find your solution. As far as the web design and development is concerned you will probably run into missing images. If this is the case check your permalinks. Make sure they are the same structure as your original website. Next, check your media file and make sure it also in the same.

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