Default Argument
As we know that in C programming language it is compulsory to pass all arguments during function call, which are used in function definition, but C++ allows us to call a functionRead More…
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Functions in C++
Function in C++ program is similar to function in C program. Function provides the top-down structured programming approach. It also provides re-usability that means we can use the same function multiple times.Read More…
Monolithic System Structure
Monolithic system Structure is written as a collection of procedures, each of which can call any other procedure whenever it needs. When this technique is used each procedure in the system hasRead More…
ALTER TABLE
ALTER TABLE command is used to modify table structure. We can add new column, remove existing column or change data type and size by using alter table command. If records are availableRead More…
Oracle Functions
Oracle provides number of in-built functions. Oracle functions can be divided into two broad categories: Scalar functions Scalar functions are those functions that operates on individual row. It can be categories asRead More…
Aggregate Function
Aggregate functions are those functions that can be apply on multiple rows and returns signal result for all rows. They are also known as grouping functions. Oracle provides the following aggregate function.Read More…
Layered System Structure
In the layered system structure, operating system is organized as hierarchy of layers; each of the layers is constructed upon one another. The lowest layer (layer 0) contains hardware and the topRead More…
Break, Continue and Exit
Break: A break statement can be used to terminate or to come out from the loop or conditional statement unconditionally. It can be used in switch statement to break and come outRead More…
Exit Control Loop
An Exit Control Loop checks the condition for exit and if given condition for exit evaluate to true, control will exit from the loop body else control will enter again into theRead More…
Entry Control Loop
An entry control loop checks the condition at the time of entry and if condition or expression becomes true then control transfers into the body of the loop. Such type of loopRead More…