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2.18.1 QRY/QCK - deferred query (event Q02)

For clarity, A is the system initiating the query and B is the system sending the responses. Multiple queries and responses are permitted within single messages. The responses to a given query may be broken into several separate DSR messages. A single DSR message may contain responses to more than one QRY.

QRY (A to B)   Query Message       Chapter
MSH     Message Header        2
QRD     Query Definition        2
[ QRF ]    Query Filter         2
[ DSC ]    Continuation Pointer       2
QCK (B to A)   Query General Acknowledgment    Chapter
MSH     Message Header        2
MSA     Message acknowledgment      2
[ ERR ]    Error          2
[ QAK ]    Query Acknowledgment       2

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