Answer:
option 1: sum++
option 2: ++sum
Explanation:
In programming, a variable a container or memory location assigned to a value. The C++ syntax specifies the memory location type of value on the declaration. The major types of variables in C++ are; integer, float, double, char, string, and boolean.
To add 1 to an integer variable, the variable value could be summed with one and assigned to that same variable or '++before' and 'after++' with adds one to the variable before and after the execution of a statement.
Answer:
A data dictionary is also known as metadata repository.
A field whose value uniquely identifies each record in a table is called: C. Primary key.
<h3>What is DBMS?</h3>
DBMS is an acronym for database management system and it can be defined as a collection of software applications that enables computer users to create, store, modify, retrieve and manage data or information in a relational database.
This ultimately implies that, DBMS allow end users to efficiently store, retrieve and manage their data with an appropriate level of security.
In database management system (DBMS), a primary key is a field whose value uniquely identifies each record in a table or relational database.
Read more on primary key here: brainly.com/question/8131854