Java is a computer programming language. It enables programmers to write computer instructions using English based commands, instead of having to write in numeric codes. It’s known as a “high-level” language because it can be read and written easily by humans. Like English, Java has a set of rules that determine how the instructions are written. These rules are known as its “syntax”. Once a program has been written, the high-level instructions are translated into numeric codes that computers can understand and execute. Who Created Java? In the early nineties, Java was created by a team led by James Gosling for Sun Microsystems. It was originally designed for use on digital mobile devices, such as cell phones. However, when Java 1.0 was released to the public in 1996, its main focus had shifted to use on the Internet. It provided more interactivity with users by giving developers a way to produce animated webpages . Over the years it has evolved as a successful language for
You can create/drop tables in PL/SQL block with Execute immediate command
ReplyDeleteactually any programming language follows pre/post validations for host variable
here pre checking wl be done,so at the time of compilation we have to submit all host variables,but we can't with ddl stms,so where ever we keep Execute immediate stmt that stmt wl be validate at runtime only.
this is nothing but Dynamic SQL.previously we are using in-built pakage ,now execute immediate command .