We can combine the First and the Last name columns to create the FullName calculated column. The database stores the studentID, FirstName, and LastName of the student. The example below shows three columns SELECTed FROM the “student” table and one calculated column. There are also options you can apply to show data that is not a table column. The SELECT part of a query determines which columns of the data to show in the results. Here is a list of basic SQL commands (sometimes called clauses) you should know if you are going to work with SQL. SQL commands can be used to search the database and to do other functions like creating tables, adding data to tables, modifying data, and dropping tables. SQL commands are the instructions used to communicate with a database to perform tasks, functions, and queries with data.
SQL stands for Structured Query Language.
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