Tip Bank

The members of an enumerated type are called enumerators. For example: enum Direction { Up, // an enumerator Down // another enumerator }; int main() {} An enumerator’s scope is

I receive many questions from readers asking for guidance on how to port an existing C++ app to a different compiler or platform. Porting software can be very easy or

On modern operating systems, a process consists of an executable file that the OS loads into the system’s memory and executes. A process normally has an entry point and one

Question: If I have the option of using the uniqueidentifier or int data type for a primary key, will choosing the uniqueidentifier mean a significant performance degradation? Answer: The uniqueidentifier

Question: I need a query that retrieves info from an Oracle table and a query that retrieves info from a SQL Server table. The info has to be joined together

Question: Using C or C++ for CGI programs, is there a way to make a CGI program that calls another CGI program, and then takes the output of that called

Question: How do I create a constructor for a protected member of a class? I have declared the function in the header file but not defined the definition.The error message

Question: What’s the syntax for outer joins in the where clause in Informix? Answer: The syntax is: SELECT c.customer_num, c.lname, c.company,c.phone, u.call_dtime, u.call_descrFROM customer c, OUTER cust_calls uWHERE c.customer_num =

Question: How do I drop a table column? Answer: To drop a column, use this syntax: ALTER TABLE Employees DROP COLUMN HomePhone Just remember that you can’t drop a column