CONCATWS

CONCATWS is a programming function or command found in some database systems and programming languages. Its primary purpose is to concatenate or join together multiple strings into a single string. The "WS" typically stands for "with separator," indicating that the function can accept a delimiter string that will be inserted between each of the input strings. This allows for controlled formatting of the resulting string.

For example, if you have a list of words like "apple", "banana", and "cherry", and you use CONCATWS with a comma as the separator, the output would be "apple,banana,cherry". Without a specified separator, the strings would be joined directly. The ability to specify a separator is particularly useful for creating formatted lists, combining data fields, or constructing complex strings from smaller components. CONCATWS often handles cases where some of the input strings might be null or empty, typically by ignoring them in the concatenation process. Different implementations may have slight variations in their exact syntax and behavior.