What are the differences in implementation and functionality between message queues and pipes (including anonymous pipes and FIFO)?

what are the differences in implementation and functionality between RT, message queues and pipes (including anonymous pipes and FIFO)?

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2bc4a-e00d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2bc4a-e00d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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