DEC_BASE64
Decodes a base 64 encoded value and returns a string with the binary data representation of the data. If you encode data using ENC_BASE64, and you want to decode data using DEC_BASE64, you must run the decoding session using the same data movement mode. Otherwise, the output of the decoded data may differ from the original data.
Syntax
DEC_BASE64( value )
The following table describes the argument for this command:
Argument | Required/ Optional | Description |
|---|
value | Required | String datatype. Data that you want to decode. |
Return Value
Binary decoded value.
NULL if the input is a null value.
Return values differ if you run the session in Unicode mode versus ASCII mode.
Example
You encoded WebSphere MQ message IDs and wrote them to a flat file during a workflow. You want to read data from the flat file source, including the WebSphere MQ message IDs. You can use DEC_BASE64 to decode the IDs and convert them to their original binary value.