Oracle SQL -- insert multiple rows into a table with one statement?

Question

I'd like to do insert N rows that are all identical, except one of the values is different. Specifically, this is what I am trying:

insert into attribute_list (id,value,name)
values 
(
select (id,'Y','is_leveled') from value_list where val >= 50
);

So for every value that has a val >= 50, I would insert one row into attribute_list. Can this be done with one insert statement or should I just manually generate these inserts in excel?

(note: this is a cooked example simplified to clarify the issue, so no need to attack the needlessness of this specific case)

So, if multiple rows in value_list for the same id have val >= 50, do you want run row for that id in attribute_list? — Shannon Severance
– Shannon Severance, Commented Apr 17, 2012 at 19:41
@ShannonSeverance Cool question. I assume if I only wanted it to once I'd just select unique ids with a sub-select. — Jeremy
– Jeremy, Commented Apr 17, 2012 at 21:38

mwigdahl · Accepted Answer · 2012-04-17 19:04:23Z

37

You can absolutely do this in a single statement!

Try this:

INSERT INTO attribute_list (id, value, name)
SELECT id, 'Y', 'is_leveled'
FROM value_list WHERE val >= 50

answered Apr 17, 2012 at 19:04

mwigdahl

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nes1983 · Accepted Answer · 2012-04-17 19:05:03Z

5

That is what FOR loops are for.

DECLARE
   x NUMBER := 100;
BEGIN
   FOR i IN 1..10 LOOP
      IF MOD(i,2) = 0 THEN     -- i is even
         INSERT INTO temp VALUES (i, x, 'i is even');
      ELSE
         INSERT INTO temp VALUES (i, x, 'i is odd');
      END IF;
      x := x + 100;
   END LOOP;
   COMMIT;
END;

answered Apr 17, 2012 at 19:05

nes1983

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2 Comments

MJB Over a year ago

I think this missed the point of the question. It inserts multiple values, but not with a single statement.

nes1983 Over a year ago

I consider these one line inserts convenient shorthands for the real thing: the loop. As soon as things get only mildly interesting, you have to loop anyway.

Pavel Veller · Accepted Answer · 2012-04-17 19:05:58Z

2

You need an INSERT from SELECT. To do so you should omit the VALUES and just do:

insert into attribute_list (id,value,name)
select (id,'Y','is_leveled') from value_list where val >= 50;

Here's an example: http://psoug.org/reference/insert.html

answered Apr 17, 2012 at 19:05

Pavel Veller

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Comments

GavinCattell · Accepted Answer · 2012-04-17 19:04:21Z

1

You can do a SELECT ... INTO if you can query the data. Otherwise to create data you'd need to use PL/SQL

If you have the data then try:

select id,'Y','is_leveled'
INTO attribute_list 
from value_list where val >= 50

answered Apr 17, 2012 at 19:04

GavinCattell

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