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Question: Can I use a user-defined data type when defining a temporary table in a stored procedure? Answer: You can use user-defined data types in temporary tables, but remember one
To rename a file, use the standard function rename() (declared in ). This function takes two arguments of type const char *, the first of which is the old name
The standard function remove() deletes a file. It takes one argument of type const char * which is the name of the file to be deleted. You can provide a
The Standard Template Library defines five major categories of iterators. The following diagram illustrates these categories:input iterators output iterators / forward iterators | bidirectional iterators | random access iteratorsNote that
Question: How can I make a function to return and display the maximum number in the following array: int my_array[]={10,3,35,101,65,100}; Answer: First, sort the array. Then display the last element
Question: I understand that most of the time, new and malloc may use the same allocation routines, but does that necessarily mean new calls malloc? I am asking because I
Question: I have data in a Vector and need to sort it before displaying iton the screen; how do I do this? Answer: The Java 2 Collections Framework provides a
Question: What is the advantage of declaring a variable as a superclass referenceand then pointing that variable to an instance of a subclass? Theway I see it, I can achieve
Question: Can RMIC make stubs for inner classes? When I tryrmic packagename.OuterClassName$InnerClassName, it doesn’t work. Answer: Yes, RMIC can make stubs for inner classes. However, you must use thefully qualified
Question: Is there a way to access the call stack debugging information from the code? I would like to print the call stack inside a function, each time it is
This repair and compact also backs up the Access MDB. Function ValidateMdb(MDB As String) As Boolean This function repairs, compacts, and backs up a database fileand deletes stray LDB (locking
Oracle 8i introduces the concept of temp tables. This feature long since enjoyed by SQL Server developers enables data to be visible on a Session orTransaction basis. To create an
Everyone can deal with one recordset easily. However, if a SQL statement is like this: “SELECT a, b FROM Table1 COMPUTER SUM(a), SUM(b),” looping though the recordset will not return
To change the case of all the letters in a string object, use the std::transform() algorithm. This algorithm is defined in the standard header . It takes four arguments. The
Many programmers append the endl manipulator after each cout expression, as in: cout
The standard streams cin and cout are automatically tied to each other. This means that whenever you’re using both of them, C++ ensures that their operation is synchronized. In other
The standard stream objects support all built-in types as well as several classes of the Standard Library, e.g., std::string. If you’re using complex arithmetic, you’d be pleased to hear that
Classes having a non-virtual destructor aren’t meant to be derived from (such classes are usually known as “concrete classes”). std::string, std::complex, and all STL containers are concrete classes. Why is
Question: How can I release all existing database locks for all the sessions a specific user has started? Answer: The easiest way probably is to log that user out. Otherwise,
Question: I have been receiving the following (albeit general) error sporadically: “Microsoft OLE DB Provider for ODBC Driverserror ‘80004005’ [Informix][Informix ODBC Driver]General error.” This error has occurred when the code
Question: I have a parameterized SQL statement like the following: “insert into eSession (ESessionID, eUserName, eLastActivityTime) VALUES(?,?,?)” It’s parameters are ‘bbb’,’name’ and ‘2000/01/01 22:23:25′, using an ODBC connection. I can’t
Question: Outbound messages are being delayed randomly. You can send them to the same host—sometimes they don’t queue up long enough to even see. Other times they are there for
Question: Is there a command-line way to back up my Exchange databases without stopping the services, like the GUI can? Or, for that matter, is there any automated method of
The ADO Recorset object exposes a hidden, undocumented member: the Collect property. This property is functionally similar to the Field’s Value property, but it’s faster because it doesn’t need a
Question: What is the purpose of using the fetch and declare cursor in Informix.4GL?How do you use the scroll cursor, and what are its advantages? Answer: Cursors allow you to
Question: My ace report/shell script did not wait for user intervention. I have solved that with: script.sh < mytty > mytty But now the screen needs refreshing with a CTRL-R.
Question: How can I place my Exchange Server on a network with private addresses and have my MX record point to the server even though the server is behind a
Question: I have a Windows 2000 server where I have installed the Exchange Server 5.5 Service Pack 3. I want to do a backup, but the Exchange option is empty
Question: How can I redirect mail sent to a particular mailbox to an external address? Answer: Outlook 2000 has the ability, in the Rules Wizard, to redirect mail. You’ll find
Question: I’ve tried to create a table (for my guestbook) with an auto increment column. Here’s my statement: CREATE TABLE guestbook(id mediumint(8) NOT NULL KEY(PRI) default(0) auto_increment, name varchar(30) NOT











