Useful tips for everyday
How to publish metadata for a service using code? Any client can retrieve the metadata from the service. If you require your service to publish…
Which is the best description of a multiplexer? The Multiplexer. Multiplexing is the generic term used to describe the operation of sending one or more…
How do you make a harmonious color palette? Choose a base color and then add two or three analogous colors as accents. Use only warm…
Can an indexed column be null? The Oracle database does not include rows in an index if all indexed columns are NULL . That means…
What does file descriptor means? In Unix and Unix-like computer operating systems, a file descriptor (FD, less frequently fildes) is a unique identifier (handle) for…
How do I arrange text in columns? To add columns to a document: Select the text you want to format. Selecting text to format. Select…
How do I change the default font color in Outlook? Select Settings > View all Outlook settings. Select Mail > Compose and reply. Under Message…
How to do PHP signup and login using PDO? In the last PDO tutorial we about PHP CRUD operation using PDO Extension. In this tutorial,…
How can I tell if someone is a root user? If you are able to use sudo to run any command (for example passwd to…
Why are my emails recovered from Mac Mail? The recovered message may be a previously sent message, or even could be a spam message that…