| Indexing tables [message #237730] |
Tue, 15 May 2007 09:41  |
matpj
Messages: 115
Registered: March 2006
Location: London, UK
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Senior Member |
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HI all,
I have a very basic knowledge of SQL, and have created a table in an Oracle database using the following script:
CREATE TABLE NIKU.DSTI_RES_OBS_HISTORY
(
PRID NUMBER(10) NULL,
PRSTART DATE NULL,
UNIQUE_NAME VARCHAR2(96) NULL,
FULL_NAME VARCHAR2(300) NULL,
ID NUMBER(10) NULL,
PARENT_OBS VARCHAR2(96) NULL,
OBS_UNIT_ID NUMBER(10) NULL,
NAME VARCHAR2(96) NULL
)
I am populating this table with a third party data transfer tool, which runs some SQL on a selection of tables in the same tables, and apends each time it is run (to build a history)
I have no idea about indexes so wasn;t sure if I need to index the table, and if so how?
any advise will be appreciated.
Many thanks,
Matt
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| Re: Indexing tables [message #237735 is a reply to message #237733] |
Tue, 15 May 2007 09:51  |
matpj
Messages: 115
Registered: March 2006
Location: London, UK
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Senior Member |
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I dont suppose you can elaborate on that please?
why dont I need to index?
what benefit does indexing give?
trying to learn but cant find the answer in the Search function.
Thanks,
Matt
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