About abbreviations in SQL statements

For example, SELECT & nbsp; * & nbsp; FROM & nbsp; djs_update_class & nbsp ;. It is annoying to query multiple data records .. I think others write it as SELECT & nbsp; * & nbsp; FROM & nbsp;. What is the reason for this writing? What is the specific statement? I asked some of them to write an array .. It is always too far-fetched. you cannot write arrays in mysql .. Abbreviations in SQL statements
For example, SELECT * FROM djs_update_class.
It is annoying to query multiple data records ..
I think others write it as SELECT * FROM.
What is the reason for this writing? What is the specific statement?
I asked some of them to write an array .. It is always too far-fetched. you cannot write arrays in mysql...
If I want to write like this, do I need to download any plug-ins?
Please give me some advice.

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SELECT * FROM djs_update_class
And
SELECT * FROM
The difference is only that the table names are different, and the table names do not need to actually exist.
If you think that writing A is concise, why should you give the table A name with such A long length as djs_update_class?
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Dude, I don't know if I don't understand you,

SELECT * FROM djs_update_class

And

SELECT * FROM

The table name is different.