Reads a record into a file buffer and applies an update lock.
F-UREAD fb itemId
F-U fb itemId
||An integer specifying the file buffer.
||The item ID of the record to be read from the file buffer. itemId can be an integer, or a reference to a buffer or a select list that contains the item ID.
PROC command reads a specified record from a file into the file buffer. The file must have been opened using the F-OPEN
command, which assigned it a numbered fb
If the requested record is locked by another process, F-UREAD
waits until the lock becomes available.
applies an update lock on the record, preventing other users access to the record. This lock is released using the F-FREE
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