BASE64_ENCODE

BASE64_ENCODE(msg[, max_line_length[, alphabet]])

Encodes the msg string into a string using the base64 encoding scheme as if it were binary data (or directly encodes binary data). If max_line_length (default zero) is greater than zero, then newline characters will be inserted after that many characters to effectively add "text wrapping". If alphabet is provided, it specifies substitutes for the usual encoding characters for index 62, index 63, and the padding character. See here for Snowflake documentation.