No
A text field can hold both numbers and text. Sometimes they are referred to as alphanumeric fields.
No, it is not.
True.
The name "alphanumeric" seems to indicate a collection of letters and digits; but in practice, other symbols can be used as well. That is, in practice the term "alphanumeric" often refers to any data of "string" type - a collection of text, interspersed with digits and other symbols, i.e., anything you might type in NotePad for example, or in MS-Word (without formatting).
This is often called the range of the data.
Short text
A text field can hold both numbers and text. Sometimes they are referred to as alphanumeric fields.
Yes it does.
No, it is not.
Alphanumeric data is data presented in both numbers and letters (C3PO, R2D2 and most license plates).
Excel is a spreadsheet application.
The data type of a field specifies the kind of data it can contain, such as text, numbers, dates, etc. It determines how the field is stored and how operations can be performed on it, like arithmetic calculations and comparisons. The field is used by storing and retrieving data according to its specified data type.
A field of this data type will accept both numbers and text. The alphanumeric keys are the part of the deyboard that looks like a typewriter. When to use - it you want to enter text, or a mixture of text and numbers. When NOT to use - if you want to store only munbers, or only dates. You can enter numbers or dates into text fields but they would get sorted as if they were words and could not easily be used for any calculations.
Excel is a spreadsheet application.
A text data type field can store alphanumeric characters, such as letters, numbers, and special symbols. It is suitable for storing large amounts of text data, such as descriptions, comments, or notes. Text data types can hold variable lengths of text, depending on the database system used.
SQL (Structured Query Language) is a language used in a SQL server to manage data (Query the data, insert, Update, Delete) as well as perform data manipulation (calculations, etc)
alphabets contains only the letters from a-z while alphanumeric has both numbers and letters... example... ABCDEFGHIJ are alphabets A4F54F54F5G AND 3F3FS34TH3 are both alphanumeric... alphanumeric are commonly used as passwords since they are more difficult to crack that words or numbers separately...