Database uses keywords as column names

Under what circumstances will the keyword be used as the column name, I feel

1. The corresponding database does not know the corresponding column name is the keyword (did not try to create a table when the column name is specified as the keyword will not error)

2. Database migration, from one database to another type of database, the original database platform, not the keyword column name is a keyword.

Under SQL Server, if you update the keyword column, you can use double quotation marks or brackets.

Use double quotes under Oracle.

MySQL uses ' (backticks) to enclose the name of the table and the column name. Field names are also case insensitive.

Database uses keywords as column names