Concatenate stringsconcat returns a new string, concatenated from a variable number of strings given as arguments. NULL arguments are handled as empty strings. concat (str) returns a copy of str. concat () returns an empty string.
Concatenate stringsconcat returns a new string,
concatenated from a variable number of strings given as
arguments. NULL arguments are handled as empty strings.
concat (str) returns a copy of
str.
concat () returns an empty
string.