CRC32 returns cyclic redundancy check value and used to find data transmission error. CRC32 can also be applied to find the data in a file is modified or not. CRC32 returns different value in ASCII and UNICODE mode.

CRC32( value )

Argument	Required/Optional	Description
value	Required	String or Binary datatype. Passes the values you want to perform a redundancy check on. Input value is case sensitive. The case of the input value affects the return value. For example, CRC32(informatica) and CRC32 (Informatica) return different values.

Example : CRC32 is used to find transmission error. Sender and receiver can apply CRC32 to check whether data was modified on transmission.