DDL is nothing but Data Definition Language . It is very important for a dadabase that we have to define the data such that we can create tables , alter tables, truncate and drop tables
DDL stands for data definition language and DML stands for data manipulation language.DML changes data in an object (eg-insert,update,delete) and when we create,change or remove a database object thats DML (eg-create). so both are important.
Run time polymorphism in java is method overriding. At compile time the compiler just checks for the existence of the overriding method if the signature, return type and name of the method matches or ...
NILESHKUMAR M JANI
Aug 6th, 2014
My understanding for computer science is variable bind at compile time and method bind at run time, then what is meaning of method overloading and overriding.