> How does the language support variable names?
You can use any identifier to name a variable.
> Are variable names case sensitive?
Yes, in some languages, they are.
Names starting with a number or special character. Keywords in the programming language. Names already used for predefined functions or variables.
1. Because they are completely unrelated names. 2. Because there is no rule against them having the same names.
AnswerNo, SQL is not defined as case-sensitive in the standards.However, certain implementations of SQL may be case sensitive, in certain scenarios. Notably, MySQL on a Linux or Unix server is most likely case sensitive in regards to table names. Also, some collations (string storage formats) are case sensitive. Finally, column and table names may be case sensitive within a query on some SQL servers (i.e. "select * from USER where user.name = 'test'" might result in an error). When it doubt, check the manuals for the server you are using.
Because the compilers do not allow that, you would get a 'Syntax error' if you tried.(In FORTH, mind you, variable names can start with digits, for example:VARIABLE 0A ( declare variable )10 0A ! ( assign value )0A @ ( fetch value ))
A valid variable name must start with a letter (a-z, A-Z) or an underscore (_) and can be followed by letters, digits (0-9), or underscores. It cannot contain spaces, special characters, or begin with a digit. Additionally, variable names should not be a reserved keyword in the programming language being used. It's also a good practice to use descriptive names that convey the purpose of the variable.
In most programming languages, variable names cannot start with a number. Variable names must start with a letter, underscore (_), or dollar sign ($). This rule is in place to differentiate variable names from numeric literals.
Variable-names aren't to be declared.
yes
Well, firstly, all PHP variable names begin with the dollar sign. After that...PHP variable names must begin with either a letter or an underscore ( _ )PHP variable names can only contain letters, numbers, and underscores.A variable cannot contain spaces. Therefore variable names using more than one word should be separated using an underscore or camel cased. e.g. $multiple_word_variable_name OR $multipleWordVariableName.
Variable names are used so the code is readable. When the code is compiled to machine languages, it no longer uses the variable names to understand it's operations...sometimes variable names are kept as metadata to help debug but the computer does not need them to execute the program...they are for us so we can easily understand what we are doing.
Sort of. Actually the RAM contains the values of the variables. Whenever you define a variable in a programming language, when compiled, this variable is converted to a memory (i.e., RAM) location. In interpreted languages, the RAM usually also contains a list of variables, with their names and types - although details vary, depending on the language.
The sensitive plant is also known as "Mimosa pudica" or "touch-me-not."