Which of the following variable name formats would be problematic if used in the majority of data software programs?

This is because First Name is a variable name format that would be problematic if used in most of the

data software programs, such as Excel, SQL, or Python. This is because First Name contains a space

between two words, which could cause confusion or errors in the data software programs, as they

might interpret the space as a separator or a delimiter between two different variables or values,

rather than as part of a single variable name. For example, in SQL, a space is used to separate

keywords, clauses, or expressions in a statement, such as SELECT, FROM, WHERE, etc. Therefore,

using First Name as a variable name in SQL could result in a syntax error or an unexpected result. The

other variable name formats would not be problematic if used in most of the data software

programs. Here is why:

First_Name_ is a variable name format that uses an underscore (_) to separate two words, which is a

common and acceptable practice in most of the data software programs, as it helps to improve the

readability and clarity of the variable name. For example, in Python, an underscore is used to follow

the PEP 8 style guide for naming variables, which recommends using lowercase letters and

underscores for multi-word variable names.

FirstName is a variable name format that uses camel case to separate two words, which is another

common and acceptable practice in most of the data software programs, as it helps to reduce the

length and complexity of the variable name. For example, in Excel, camel case is used to follow the

VBA naming conventions for naming variables, which recommends using mixed case letters for multi-

word variable names.

First_Name is a variable name format that also uses an underscore (_) to separate two words, which

is also a common and acceptable practice in most of the data software programs, as it helps to

improve the readability and clarity of the variable name. For example, in SQL, an underscore is used

to follow the ANSI SQL naming standards for naming variables, which recommends using lowercase

letters and underscores for multi-word variable names.