To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) A table name can duplicate the name of any other database object if not owned by the same user - This option is correct. In a database, a table name can be the same as the name of another database object (such as a view, function, or procedure) as long as they are not owned by the same user.
Option B) Table names can contain $, _, and # signs - This option is correct. Table names can include special characters like $, _, and # signs. However, it is generally recommended to use only letters, numbers, and underscores for table names to ensure compatibility across different database systems.
Option C) Table names are case-sensitive - This option is incorrect. Table names are typically not case-sensitive in most database systems. For example, in MySQL, table names are case-insensitive by default. However, there may be some database systems that treat table names as case-sensitive, so it's important to consult the documentation of the specific database system you are using.
Option D) Table names begin with a letter - This option is correct. Table names must begin with a letter. They cannot start with a number or any other special characters.
Option E) Table names are not created in Uppercase by default - This option is not provided.
Therefore, the correct answers are A, B, and D. These options are correct because they accurately describe the naming rules that apply to tables.