Reputation: 53
How should i write a single sql statement or a stored procedure,
To insert 1000 values in 1000 rows and same column with each column having different values (among those 1000)
Here is the query i wrote,
INSERT INTO a_b values
(
(SELECT max(a_b_id) + 1 from a_b),
1111,
(SELECT s_id FROM a_b WHERE s_id in ('0','1','2','3','4')),
0,
1,
sysdate,
sysdate,
0,
1,
null
);
like say, i have 1000 s_id's i want select them one by one and insert them in one particular column, each time creating a new row.
EX, in first row s_id should be 0 then in second row it should be 1 like that goes on till thousand, attached an image of sample database i am working with.
Upvotes: 1
Views: 4540
Reputation:
You can use connect by
for this:
INSERT INTO a_b (s_id, col2, col3, ....)
select level, --<< this value will change for every row
1111,
sysdate,
... more columns ...
from dual
connect by level <= 1000;
Upvotes: 2
Reputation: 24959
The below is a syntax error. You will never get something like that to work.
create table fff
( id int not null
);
insert fff values (select 1,7777,select 3, select 3);
So you need to break it up into chunks
DROP PROCEDURE IF EXISTS uspRunMe;
DELIMITER $$
CREATE PROCEDURE uspRunMe()
BEGIN
insert into a_b select max(a_b_id) + 1 from a_b;
insert into a_b values (1111);
insert into a_b SELECT s_id FROM a_b WHERE s_id in ('0','1','2','3','4');
insert into a_b values (0,1);
insert into a_b select sysdate,sysdate;
insert into a_b values (0,1,null);
END;$$
DELIMITER ;
Test it:
call uspRunMe();
The above is for MySQL. You have a few db engines tagged here.
Upvotes: 1
Reputation: 13959
you can use cross apply to get 1000 rows along with 1000 other columns to insert 1000 rows as below:
insert into a_b (column names...)
select (max(a_b_id) over()) +1 as MaxId, s_id from a_b a cross apply (select 0, 1,SYSDATETIME, SYSDATETIME, 0, 1, null) b where a.s_id('111','222')--condition
Upvotes: 1