SQL Guide (Structured Query Language)
SQL Guide SQL - Structured Query Language (Structured Query Language) SQL is a standard computer language used to access and manipulate databases. Common database management systems: MySQL, SQL Server, Access, Oracle, Sybase, and DB2 For those who want to store data and retrieve data from the database people, SQL knowledge is invaluable. What is SQL? SQL refers to the Structured Query Language (S tructured Q uery L anguage) SQL gives us the ability to access the database SQL is an ANSI standard computer language SQL for database queries executed SQL can retrieve data from the database SQL can insert a new record in the database SQL can delete records from the database SQL is easy to learn SQL database tables A database typically contains one or more tables. Each table consists of a name identity (such as "customer" or "Order"). Table contains records with data (rows). The following example is a table named "Persons" of:...