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SQL Loader

From: April Wells <awells_at_csedge.com>
Date: Tue, 20 Aug 2002 05:38:24 -0800
Message-ID: <F001.004B9C68.20020820053824@fatcity.com>


The question has been posed to me... what are the advantages/disadvantages of specifying what the datatypes really are in the control file over what we have been doing (making all of the types in the control file char).

char way:

LOAD DATA
APPEND
INTO TABLE REASON(

    ACCT_ID             position(1:5) char,
    DSBL_CLM_STAT_CD    position(6:8) char,
    REASON_CD           position(9:11) char,
    REASON_DESC         position(12:46) char

)

datatype way:

LOAD DATA
APPEND
INTO TABLE cov_group_form

	admin_cd		POSITION(1:3)		CHAR,
    acct_no      	POSITION(4:8)		CHAR,
    cov_grp_id		POSITION(9:13)		INTEGER EXTERNAL,
    form_cd			POSITION(14:28)		CHAR,
    edn_dt			POSITION(30:37)		DATE ('yyyymmdd'),
    status			POSITION(29:29)		CHAR,
    form_ttl		POSITION(38:67)		CHAR

)

Are there any speed advantages of one over the other?

Is the char version more maintainable than the external integer version?

I have been reading the fReInDlY manual and now know all of the types you CAN put in, but not the advantages of doing it one way over the other.

Help?

April

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end
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: April Wells
  INET: awells_at_csedge.com

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Received on Tue Aug 20 2002 - 08:38:24 CDT

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