>>>>> "Mike" == Mike Grover <mike@stripped> writes:
Mike> Let me Re Explain my question..
Mike> I am looking for the code that shows what the data is for the first
Mike> field In a Static MyISAM Database record row, And how to set it for Null
Mike> Thanks, Mike
Before the first field in a MyISAM table, there is a bit-map for each
field that can be NULL. (This is number-of-null-fields/8+1 byte
The first bit (ascii value 1) is always set, as a marker that the row
is not deleted.
To set a NULL - field, you have to set the corresponding bit to 0 and
then set the corresponding bytes in the field to the value you want.
From 'myisamchk -dvv' you can deduce the start position for each
field. (The first field in this map is the null-bits).
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__ ___ ___ ____ __
/ |/ /_ __/ __/ __ \/ / Mr. Michael Widenius <monty@stripped>
/ /|_/ / // /\ \/ /_/ / /__ MySQL AB, CTO
/_/ /_/\_, /___/\___\_\___/ Helsinki, Finland