Andreas K. wrote:
>
> In response to Ivan Sergio Borgonovo :
> > I just noticed something I found "unexpected".
> >
> > CREATE TABLE LIKE let you specify DEFAULT and Co.
> > CREATE TABLE AS doesn't.
> >
> > Is there a one step way to clone a table?
>
> with or without data?
>
> create table new_table (like old_table)
> create table new_table as select * from old_table
In addition:
CREATE TABLE new_table AS SELECT * FROM old_table LIMIT 0; -- also gets you a clone w/ no data
In 8.3 the (LIKE ...) construct allows for creation of indexes; in earlier versions I think they have to be done manually if they are desired. I think though that populating the table w/ indexes from a LIKE command would need an extra step to load data [which seems odd, seems it much faster usually to load data and then create indexes, etc.].
HTH,
Greg Williamson
Senior DBA
DigitalGlobe
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