The difference between anti-quotes and single quotes in MySQL

Anti-quotes, usually below the ESC key.

It is a symbol that is introduced to differentiate between MySQL's reserved words and ordinary characters.
For example: Select ' Select ' From ' Test ' WHERE select= ' field value '
In the test table, there is a select field, without the use of anti-quotes, MySQL will treat select as a reserved word resulting in an error, so there is a MySQL reserved word as a field, you must add the anti-quote to distinguish.

Quotation marks are generally used in the value of the field, and if the field value is a character or string, enclose it in quotation marks, such as: select= ' field value '
Tables built without anti-quotes cannot contain mysql reserved words, otherwise an error occurs
With normal quotes, when you enter an opening quotation mark, the content that is enclosed in normal quotation marks is green because the quotation marks are not closed and the contents are quoted as default.

When we build a table, we generally use the table name, the library names, and the counter-quotes to guarantee the execution of the statement. Anti-quote ', number 1 to the left of the symbol.
Reserved words cannot be used for table names, such as DESC, which need to be added in reverse quotation marks, but can be ignored when using table names.
CREATE TABLE desc Error
CREATE TABLE ' desc ' success
CREATE TABLE ' test ' succeeded
DROP table Test Succeeded
Reserved words cannot be used for field names, such as Desc, where you also need to add anti-quotes, and insert and so on with an anti-quote.
CREATE TABLE ' Test ' (' desc ' varchar (255)) succeeded
INSERT INTO Test (DESC) VALUES (' FXF ') failed
INSERT INTO Test (' desc ') VALUES (' FXF ') succeeded

The difference between anti-quotes and single quotes in MySQL