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Archives of the TeradataForum
Message Posted: Mon, 26 Feb 2007 @ 09:22:59 GMT
Subj: | | Re: Alter Table from Datype date to timestamp |
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From: | | D silva, Joseph Vinish |
| The Alter Table SQL statement applies changes directly to the subject table and does not use the Transient Journal at all. | |
| In the event of some failure the Alter would be continued from the point it left off after re-submission. | |
That's true for Alter table statement. But the original post was about not being able to alter the data types directly (Date -> Time stamp),
so have to go through a phase of add a new column, update it with "converted" values from old col, drop old col, rename new col name to old col
name.
So the update is definitely a killer in terms of TJ.
Joseph D'silva
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