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#1
February 21st, 2003, 08:10 PM
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mysql default insertion order
Hi,
I usually have an auto_incremented primary key as my tables. And, usually, when I insert into these tables, mySQL adds the new row to the end, so that this primary key will be sorted ascending. However, it seems that once in a while mySQL inserts the item at random. Is there a reason that this happens? Thanks.
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#2
February 22nd, 2003, 06:17 PM
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RE: mysql default insertion order
If you delete one of the rows, the next row insert might try to take it's value I think. Like if you had 16 rows, and you deleted row number 13, it might go into row 13.
I'm not sure if this is what you mean though?
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#3
February 22nd, 2003, 10:23 PM
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RE: mysql default insertion order
Yes, I think that might be one of the reasons... it's very weird, though.
I think I'll just play it safe from now on and sort by asc on the primary column by default when I select data out.
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