To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) TO_CHAR - This function is used to convert a numeric or date expression to a character string. It cannot operate on any datatype, as it is specifically designed to convert numeric or date expressions.

Option B) TO_DATE - This function is used to convert a character string to a date value. It cannot operate on any datatype, as it is specifically designed to convert character strings to dates.

Option C) MAX - This function is used to return the maximum value from a set of values. It can operate on any datatype, including numeric, character, and date types. This makes it the correct answer to the question.

Option D) LPAD - This function is used to left pad a string with a specified character. It can operate on character strings only, and not on any other datatype.

The correct answer is Option C) MAX. This option is correct because the MAX function can operate on any datatype, whereas the other options are specific to certain datatypes.

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• Wrong explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) A special way of selecting data - This option is incorrect because normalization is not related to selecting data. Normalization is a process of organizing and structuring data in a database.

Option B) The process of adding a primary key to a table - This option is incorrect. While adding a primary key to a table is part of the database design process, it is not the definition of normalization. Normalization involves organizing data to eliminate redundancy and ensure data integrity.

Option C) The process of arranging information stored in a database in a way that removes redundancy and ambiguity - This option is correct. Normalization is the process of organizing data in a database to minimize redundancy and eliminate data anomalies, such as update, insert, and delete anomalies. It aims to improve data integrity and optimize database performance.

Option D) A special way of retrieving data - This option is incorrect. Normalization does not relate to retrieving data. It is focused on organizing and structuring data within a database.

The correct answer is C) The process of arranging information stored in a database in a way that removes redundancy and ambiguity. This option is correct because it accurately describes the concept of normalization.

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• Wrong explanation