Insert the same data multiple times
I have an insert operator like this:
insert into table (id, name, descr) values (4, 'asdf', 'this is not a word');
I need to insert this same statement with multiple IDs. Right now I have:
insert into table (id, name, descr) values (4, 'asdf', 'this is not a word');
insert into table (id, name, descr) values (6, 'asdf', 'this is not a word');
insert into table (id, name, descr) values (7, 'asdf', 'this is not a word');
insert into table (id, name, descr) values (9, 'asdf', 'this is not a word');
Do I just need to run this, or is there a more concise version?
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4 answers
You can use the operator INSERT ALL
INSERT ALL
INTO table (id, name, descr) VALUES (4, 'asdf', 'this is not a word')
INTO table (id, name, descr) VALUES (6, 'asdf', 'this is not a word')
INTO table (id, name, descr) VALUES (7, 'asdf', 'this is not a word')
INTO table (id, name, descr) VALUES (9, 'asdf', 'this is not a word')
SELECT * FROM dual;
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For argumentation, a more permanent solution can be made if that id is also main_record by creating a sequence, adding a BEFORE INSERT trigger to the table to automatically increment the id using the sequence, then looping, inserting however many rows you want, and let yourself increment of identifier:
-- Create the table
CREATE TABLE SEQ_TEST
(
ST_ID NUMBER,
ST_NAME VARCHAR2(50 BYTE),
ST_DESC CHAR(100 BYTE)
);
-- Create the sequence
CREATE SEQUENCE SEQ_TEST_SEQ
START WITH 1
MAXVALUE 9999999999999999999999999999
MINVALUE 0
NOCYCLE
NOCACHE
ORDER;
-- Create the before insert trigger
CREATE OR REPLACE TRIGGER SEQ_TEST_BI
BEFORE INSERT
ON SEQ_TEST
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
if :old.ST_ID is null then
:new.ST_ID := SEQ_TEST_SEQ.nextval;
end if;
END SEQ_TEST_BI;
-- insert 25 rows using an anonymous block. Note the ID is NULL
-- which causes the trigger to increment ID
-- based on the sequence.
begin
for i in 1..25
loop
-- NOTE - Technically you could omit the 'ST_ID' and NULL and it would
-- still work, but I prefer to keep them here to show this action
-- of inserting NULL is intentional and show that all columns are
-- accounted for in the insert.
insert into SEQ_TEST (ST_ID, ST_NAME, ST_DESC) values (NULL, 'asdf', 'this is not a word');
end loop;
end;
commit;
-- Prove it.
select * from seq_test;
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