COPY command

Hi,

Can I use Copy command for inserting rows into a table with the Insert into table select Query.

My Select Query has bind variables values of which are passed in D2K reports.

Can I then use COPY command in D2K report in Before Report trigger?

What is the advantage of COPY command over direct Insert?

Also, if I can have good examples of COPY command.

TIA.

I think COPY is a SQL*Plus command and probably couldn't be used in PL/SQL.

Jeff (My Hero) is once again correct.

This is an SQL* command and can be used to insert data via a select statement, but I do not know is it will work in PL/SQL either.

I had to prepare a small doc on the SQL* COPY command for our developers since they can not use import/export to move their data. One of the major benefits with COPY is that you can set the commit level via ARRAYSIZE and COPYCOMMIT.

I'll E-mail you the doc if you like.

MH

Quote:

---

Originally posted by Mr.Hanky
Jeff (My Hero) is once again correct.

---

http://www.3dpcgame.com/cwm/s/contri...hinkingof_.gif

Two days ago you're ready to shoot me, and now I'm your hero?

Hmm, I could blame it on short term memory loss and the 80's.

I could mention that lots of "heros" get shot by admiring fans

Or I could just mention that I am always prepared for a good ol' fashioned drive by as any DBA should be, no?

With much love and admiration
MH

Mr. Hanky,


Pl. send me the docs you have on [email protected].

Thanks,

Sam

Please Cc to my address [email protected]
Thanx

me too!

[email protected]

can you count me 2 [email protected]

Let's just do this the easy way shall we.



SQL* Plus
Copy Command


You must be connected to one of the databases involved. It doesn’t matter which, but you must be connected to either the database containing the data or the database to which you want to copy the data.


SET ARRAY[SIZE] May be abbreviated to array.
This parameter sets the number of rows fetched at one time. The default is 15. The allowed range is from 1 to 5000.

SET COPYC[OMMIT] May be abbreviated to copyc.
The copycommit setting works in conjunction with the arraysize setting. The arraysize setting controls the number of rows in a batch. The copycommit setting controls how many batches are copied before committing. The number or rows copied before each commit is equal to ARRAYSIZE * COPYCOMMIT.

The default is 0 this means that by default COPY will only commit after the copy command is finished. This is a potential rollback disaster, please adjust this accordingly. You would not want to forget this on a very large table.

Example
SET ARRAYSIZE 15
SET COPYCOMMIT 10
COPY TO my_id@database name-
INSERT my_id.table_name-
USING SELECT * from table_name;

Since the arraysize setting is 15 and the copycommit setting is 10, the COPY statement shown here will commit changes after every 150 rows (15 * 10).

COPY
The COPY command allows you to use SQL* Plus as a conduit for transferring data between two Oracle databases:

COPY {FROM connection | TO connection}
{APPEND | CREATE | INSERT | REPLACE}
destination_table [(column_list)]
USING select_statement

Note; When using the COPY command In SQL*Plus you must code a hyphen (-) after each line to continue to the next line. The last line will end with a semi-colon ";"

COPY is the command.

FROM/TO
If you are connected to the source database , use the TO option to specify the destination database. If you are connected to the target database, use the FROM option to specify the source of the data.

Connection
Is the login information to use when connection to the other database.
Your_id@database name

APP[END]
Causes SQL*Plus to insert the copied rows into the destination table, creating it first if necessary.

CRE[ATE]
Causes SQL*Plus to copy the data only if the destination table is a new table.
If the destination table already exists, the COPY command will abort.

INSERT
Causes SQL*Plus to insert the copied rows into the destination table only if it already exists. If the destination table is a new table, the COPY command will abort.

REP[LACE]
Causes SQL*Plus to drop the destination table if it currently exists. A new table is then created, and the data is copied.

Destination_table
Is the name of the table to which you want to copy.

Column_list
Specifies column names to use when the COPY command creates a new destination table. This is a comma delimited list, and the number of column names must match the number of columns in the SELECT statement.

Select_statement
Is a SELECT statement that returns the data you want to COPY.


* Excerpts from Oracle SQL*Plus the definitive guide by Jonathen Gennick,
O’Reilly Press.



[Edited by Mr.Hanky on 01-18-2002 at 08:52 AM]

I wanna use COPY command and Copy 10 Million rows, is it possible if YES than how ?
Thanx