Wavelength Division Multiplexing

What is a Wildcard Character?

Definition and meaning of Wavelength Division Multiplexing

A Wildcard Character is a Character that may be substituted for both a unmarried individual or a String of characters. For Instance, in sure working structures, the asterisk person “*” can be utilized in lieu of a set of characters, while the person “?” can be used in lieu of a unmarried person.

Wildcard characters, which can be utilized in SQL and other ComputeR Languages, can shorten Commands with the aid of including a huge Range of Objects while not having to say every unmarried item Protected by using the command. One State of affairs that calls for utilization of a wildcard character is when you need to look for a fixed of comparable Filenames at a Windows Command Prompt. To show particular documents (which includes notepad.Exe or taskman.Exe) in a directory, you type: “dir notepad.Exe” or “taskman.Exe.” However, in case you want to display all files with the “.Exe” Extension within the directory, you then surely want to type “dir *.Exe.”

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