Concatenating Strings: which operation would you use to join strings?

Concatenating Strings: which operation would you use to join strings?

• A. Between
• B. Concatenating Strings
• C. NOT
• D. IN

Answer: (B)

Joining strings is done through string concatenation—the operation that glues two or more strings into one. That’s why this choice is the clear best fit for joining strings. In most languages and in SQL, you perform this with a concatenation mechanism (such as an operator like || or +, or a CONCAT function), turning something like 'Hello' and 'World' into 'HelloWorld' (or 'Hello World' if you include a space). The other options have different roles: one marks a range, another negates a condition, and the last checks membership in a set, none of which actually joins strings.

Joining strings is done through string concatenation—the operation that glues two or more strings into one. That’s why this choice is the clear best fit for joining strings. In most languages and in SQL, you perform this with a concatenation mechanism (such as an operator like || or +, or a CONCAT function), turning something like 'Hello' and 'World' into 'HelloWorld' (or 'Hello World' if you include a space). The other options have different roles: one marks a range, another negates a condition, and the last checks membership in a set, none of which actually joins strings.