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MQSeries.net Forum Index » General IBM MQ Support » UTF8 to UTF16 Convert on Get

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halbe01
PostPosted: Tue May 29, 2007 12:11 am    Post subject: Reply with quote

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Joined: 02 Feb 2005
Posts: 16
According to the manuals (although I forget exactly where) an RFH2 header can only exist in one of a small number of codepages - all of which are single byte character sets. If you try to convert to a double-byte character set then none of the fixed length fields are able to contain their data anymore, as the fields stay the same length and the data needs twice the space. At least, that's how I read it.

However I'm not sure how that works when you compare it to the MQMD - as obviously that has many fixed length fields as well and this doesn't prevent conversion of a full message into UTF16. Is the MQMD always in a single-bye character set? There's no place obvious I can see where you specify the CCSID for the MQMD itself so I'm not sure how this works.
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Nigelg
PostPosted: Tue May 29, 2007 12:40 am    Post subject: Reply with quote

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Joined: 02 Aug 2004
Posts: 1046
The MQMD is always in the CCSID of the qmgr, and this can only be a single byte character set for the allowable characters in WMQ objects, i.e. the qmgr CCSID can be 1208, but the valid characters are all single byte.
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