| Datapump and index building [message #539357] |
Fri, 13 January 2012 19:01  |
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ryandamu
Messages: 1
Registered: January 2012
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Junior Member |
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Hi,
Currently we are using "exp and imp" utilities to unload from production and load into Dev server. While importing, we are following below steps
(1) Load only data [by specifying INDEXES=N in the par file]
(2) Unlock statistics
(3) Load indexes, other objects [by specifying ROWS=N]
After doing these steps, both data, indexes and others objects are loaded. To verify indexes, we are checking DBA_INDEXES.
DBA_INDEXES :
-------------
OWNER INDEX_NAME TABLE_NAME STATUS LAST_ANALYZED
----- ---------- ---------- ------ -------------
MYSCH CP_INDEX_1 CP_TABLE_1 VALID 14/JAN/12
Question :-
(1) Does imp utility rebuild the indexes while loading data ? or it simply takes the rows from dump and load into test system without building from scratch ?
(2) I am trying to replace 'exp' and 'imp' with datapump utilities ? But, I am confused about the parameters to be used ?
(a) Can I load both data and meta data at the same time (Using CONTENT=ALL option) ?
(b) I am planning to implement this in two steps :
first load only metadata using - CONTENT=METADATA_ONLY TABLE_EXISTS_ACTION=REPLACE
then, load data - CONTENT=DATA_ONLY.
Does this approach work ?
Thanks for your help.
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| Re: Datapump and index building [message #539358 is a reply to message #539357] |
Fri, 13 January 2012 19:34  |
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BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal
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Senior Member |
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It would be helpful if you followed Posting Guidelines - http://www.orafaq.com/forum/t/88153/0/
>(1) Does imp utility rebuild the indexes while loading data ?
INDEX is CREATEd after table data completes loading.
>or it simply takes the rows from dump and load into test system without building from scratch ?
no
>(2) I am trying to replace 'exp' and 'imp' with datapump utilities ? But, I am confused about the parameters to be used ?
impdp help=yes
expdp help=yes
when all else fails Read The Fine Manual below
http://docs.oracle.com/cd/E11882_01/server.112/e22490/toc.htm
>(a) Can I load both data and meta data at the same time (Using CONTENT=ALL option) ?
yes or accept default
>(b) I am planning to implement this in two steps :
>first load only metadata using - CONTENT=METADATA_ONLY TABLE_EXISTS_ACTION=REPLACE
>then, load data - CONTENT=DATA_ONLY.
>Does this approach work ?
let us know after you complete this exercise.
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