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Top Forums Shell Programming and Scripting Delete oracle table from UNIX script Post 302416950 by radoulov on Wednesday 28th of April 2010 06:11:27 AM
Old 04-28-2010
No,
the delete performance has nothing to do with the fact that it's executed via shell script, rather than sqlplus or some other API.

A few thoughts:

1. If you delete every record in the table it is worth verifying if truncating the table is more appropriate.

2. If multiple partitions of a partitioned table are involved, try parallelizing the delete operation.

3. Verify if it is possible to implement partitioning, if not already implemented, and remove the data by dropping the unused partitions.

4. Check the wait events your operation is waiting on; the system optimization should be based on those events.

5. Check for before/after delete triggers defined on the table.
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.10 30 Jan 2004 script(1)
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