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Top Forums Programming eliminate duplicate rows - sqlloader Post 302595635 by megha2525 on Friday 3rd of February 2012 04:32:57 PM
Old 02-03-2012
eliminate duplicate rows - sqlloader

Hi ,

I have a data file in this format.

p1 p2 p3
10 0
10 0 1000

I am using a sqlloader script to load the data into the database table.There is a unique constraint on the columns p1 and p2.
So, sqlldr cannot load both the records. This eliminates duplicate records from being loaded into the DB table.
But the issue is when i load the data into the database table.
I want to be able to load the first row from the data file into the DB table as it has a value in p3 column.
I want sqlldr to reject the second row.

The database that I am working on is Oracle 11g.

Can you please let me know how can I do that ?
 

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DROP 
TABLE(7) PostgreSQL 9.2.7 Documentation DROP TABLE(7) NAME
DROP_TABLE - remove a table SYNOPSIS
DROP TABLE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] DESCRIPTION
DROP TABLE removes tables from the database. Only the table owner, the schema owner, and superuser can drop a table. To empty a table of rows without destroying the table, use DELETE(7) or TRUNCATE(7). DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced by a view or a foreign-key constraint of another table, CASCADE must be specified. (CASCADE will remove a dependent view entirely, but in the foreign-key case it will only remove the foreign-key constraint, not the other table entirely.) PARAMETERS
IF EXISTS Do not throw an error if the table does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of the table to drop. CASCADE Automatically drop objects that depend on the table (such as views). RESTRICT Refuse to drop the table if any objects depend on it. This is the default. EXAMPLES
To destroy two tables, films and distributors: DROP TABLE films, distributors; COMPATIBILITY
This command conforms to the SQL standard, except that the standard only allows one table to be dropped per command, and apart from the IF EXISTS option, which is a PostgreSQL extension. SEE ALSO
ALTER TABLE (ALTER_TABLE(7)), CREATE TABLE (CREATE_TABLE(7)) PostgreSQL 9.2.7 2014-02-17 DROP TABLE(7)
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