Data types of fields and elements

The fields within WebSphere® MQ headers and other subtrees built from the message are of a particular data type. When you manipulate the messages and their headers using ESQL in the message flow nodes, be aware of type information in field references:

• Data types of the fields in the WebSphere MQ headers
• Data types for elements in the Properties subtree
• Data types for elements in the MQ DestinationData subtree
• Message Sets: Data types for elements in an MRM message
• Data types for an unstructured (BLOB) message
• Field names of the IDOC parser structures