i am trying to do a insert into a with SELECT, bit this following query doesnt seems to be working for some reason,
INSERT INTO `employer_data`
(`employer_id`, `data`, `datetime`)
VALUES
( SELECT employer_id, employer_id AS data, NOW() AS `datetime` FROM employer );
Any ideas ?
remove values keyword
INSERT INTO `employer_data`
(`employer_id`, `data`, `datetime`)
( SELECT employer_id, employer_id AS data, NOW() AS `datetime` FROM employer );
Syntax was wrong.
Try:
INSERT INTO `employer_data`
(`employer_id`, `data`, `datetime`)
SELECT employer_id, employer_id AS data, NOW() AS `datetime` FROM employer;
Refer To:
MySQL: INSERT ... SELECT Syntax
Related
I have a query that goes something like this :
INSERT IGNORE INTO `destination_table` (`id`, `field1`, `field2`, `field3`)
SELECT `id`, `field1`, `field2`, `field3`
FROM `source_table`
WHERE `source_table`.`id` IN (
SELECT DISTINCT `id` FROM `some_table`
UNION DISTICT SELECT DISTINCT `id` FROM `some_other_table`
);
This does not work -- the query hangs indefinitely. The size of the tables is definitely not the problem, all tables have a fairly small number of records ( < 100k records). The query is fine and quite fast if I run it without the UNION :
INSERT IGNORE INTO `destination_table` (`id`, `field1`, `field2`, `field3`)
SELECT `id`, `field1`, `field2`, `field3`
FROM `source_table`
WHERE `source_table`.`id` IN (
SELECT DISTINCT `id` FROM `some_table` -- I tried with `some_other_table` too, same result
);
or
INSERT IGNORE INTO `destination_table` (`id`, `field1`, `field2`, `field3`)
SELECT `id`, `field1`, `field2`, `field3`
FROM `source_table`
both work and are nice and fast (well under a second). So I imagine that the UNION DISTICT SELECT ... is the culprit here, but I don't know why.
What's wrong with that query and why does it hang ?
Using mysql 5.7 is that makes a difference
Your first query seems to have a few typos, but I would suggest using exists logic here:
INSERT IGNORE INTO destination_table (id, field1, field2, field3)
SELECT id, field1, field2, field3
FROM source_table t1
WHERE
EXISTS (SELECT 1 FROM some_table s1 WHERE s1.id = t1.id) OR
EXISTS (SELECT 1 FROM some_other_table s2 WHERE s2.id = t1.id);
The possible advantage of using exists in this way is that MySQL can stop searching as soon as it finds the first matching id in either of the subqueries on the two tables. You may find that adding an index on the id columns in the two other would help (assuming that id be not already indexed):
CREATE INDEX some_idx_1 ON some_table (id);
CREATE INDEX some_idx_2 ON some_other_table (id);
This should speed up the lookup of the id in the two dependent tables.
You could work around the problem by rephrasing the query:
INSERT IGNORE INTO `destination_table` (`id`, `field1`, `field2`, `field3`)
SELECT `id`, `field1`, `field2`, `field3`
FROM `source_table`
WHERE `source_table`.`id` IN (
SELECT DISTINCT `id` FROM `some_table`
)
OR `source_table`.`id` IN (
SELECT DISTINCT `id` FROM `some_other_table`
);
So here is the perfectly working query I need to run though short of the necessary condition:
INSERT INTO content (`id`,`id_pages`,`content`, `date`)
SELECT `id`, `id`, `content`, `date_modified` FROM `pages`;
Unfortunately not all the databases are synced properly so some of the tables are populated and some are not.
How do I INSERT data from table A to table B IF table A is empty?
A couple queries I've tried:
IF (
SELECT count(id) FROM content='0',
INTO content (`id`,`id_pages`,`content`, `date`)
SELECT `id`, `id`, `content`, `date_modified` FROM `pages`)
...as well as:
IF (SELECT count(id) FROM content)=0
THEN (INSERT INTO content (`id`,`id_pages`,`content`, `date`)
SELECT `id`, `id`, `content`, `date_modified` FROM `pages`);
Try this:
INSERT INTO content (`id`,`id_pages`,`content`, `date`)
SELECT `id`, `id`, `content`, `date_modified`
FROM `pages`
WHERE NOT EXISTS (SELECT 1 FROM content)
The SELECT of the above INSERT statement will return all pages records unless there is at least on record in content table.
Demo with empty table | Demo with not empty table
I am trying to use upsert to update and or insert from another table
INSERT INTO table1 (
`uniqueCol1`,
`uniqueCol2`,
`created`,
`dataCol`
)
VALUES (
1,
t1.uniqueCol2Value,
NOW(),
t1.dataColValue
)
ON DUPLICATE KEY UPDATE
`dataCol` = t1.dataColValue
Now from what I can tell I don't see how I can add what I think should be FROM table2 t1 into this to grab the values and put them into table1
I would suggest:
INSERT INTO table1 (
`uniqueCol1`,
`uniqueCol2`,
`created`,
`dataCol`
)
SELECT 1, uniqueCol2Value, NOW(), dataColValue FROM table2
I need to find multiple rows related to users and then insert into another table or update if record exists for current day.
I am doing this way
SELECT CASE WHEN
(
SELECT
DISTINCT `userid`,
COUNT(DISTINCT `userip`,`userid`) AS `count`,
#date:=UNIX_TIMESTAMP(CURDATE())
FROM `tablename`
WHERE (`date` >= UNIX_TIMESTAMP(CURDATE())) GROUP BY `userid`
)
THEN
(
UPDATE `tablename2` SET `count`=`count`,`userid`=`userid`,`date`=`date` WHERE `date` >= UNIX_TIMESTAMP(CURDATE()))
)
ELSE
(
INSERT INTO `tablename2` (`count`,`userid`,`date`) VALUES(`count`,`userid`,`date`);
)
END
But this is giving me syntax error near UPDATE..
How can I fix this?
I am guessing that you want one row per user and date in tablename2. If so, enforce this rule with a unique index:
CREATE UNIQUE INDEX idx_tablename2(userid, date)
Then the database enforces it.
Your SQL is a mess, but I think I can see what you are trying to do. The basic idea is INSERT . . . ON DUPLICATE KEY UPDATE. I think the following does what you want:
INSERT INTO `tablename2` (`count`, `userid`, `date`)
SELECT `userid`, COUNT(DISTINCT `userip`, `userid`) AS `count`,
UNIX_TIMESTAMP(CURDATE())
FROM `tablename`
WHERE `date` >= UNIX_TIMESTAMP(CURDATE())
GROUP BY `userid`
ON DUPLICATE KEY UPDATE `count` = VALUES(`count`);
i want to read all data from one table and insert some data in to another table. my query is
INSERT INTO mt_magazine_subscription (
magazine_subscription_id,
subscription_name,
magazine_id,
status )
VALUES (
(SELECT magazine_subscription_id,
subscription_name,
magazine_id
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC), '1')
but i got an error that
#1136 - Column count doesn't match value count at row 1
please help me.
You can use INSERT...SELECT syntax. Note that you can quote '1' directly in the SELECT part.
INSERT INTO mt_magazine_subscription (
magazine_subscription_id,
subscription_name,
magazine_id,
status )
SELECT magazine_subscription_id,
subscription_name,
magazine_id,
'1'
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC
If you want insert all data from one table to another table there is a very simply sql
INSERT INTO destinationTable (SELECT * FROM sourceDbName.SourceTableName);
It wont work like this.
When you try to insert the row using a query all values should be there in query.
With the above problem you want to insert
magazine_subscription_id, subscription_name, magazine_id, status
in select query you have
magazine_subscription_id, subscription_name, magazine_id, status 1 it is not possible.
If you want to insert either you need to insert using query of direct values
Actually the mysql query for copy data from one table to another is
Insert into table2_name (column_names) select column_name from table1
where, the values copied from table1 to table2
If there is a primary key like "id" you have to exclude it for example my php table has: id, col2,col3,col4 columns. id is primary key so if I run this code:
INSERT INTO php (SELECT * FROM php2);
I probably get this error:
#1062 - Duplicate entry '1' for key 'PRIMARY'
So here is the solution, I excluded "id" key:
INSERT INTO php ( col2,col3,col4) (SELECT col2,col3,col4 FROM php2);
So my new php table has all php2 table rows anymore.
INSERT INTO mt_magazine_subscription (
magazine_subscription_id,
subscription_name,
magazine_id,
status )
VALUES (
(SELECT magazine_subscription_id,
subscription_name,
magazine_id,'1' as status
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC));
Insert data from one table to other with condition in MySQL and same will work in SQL Server as well. Only non existing data will get updated. Both table have same structure so column need not to pass.
insert into table_A
select * from table_A_copy
where not exists
(
select * from table_A where table_A_copy.clm_a=table_A.clm_a and table_A_copy.clm_b=table_A.clm_b and table_A_copy.clm_c=table_A.clm_c
);
Try this. Your doing in wrong way.
INSERT INTO mt_magazine_subscription(
magazine_subscription_id,
subscription_name,
magazine_id, status) VALUES (
(SELECT magazine_subscription_id, subscription_name,
magazine_id,1 as status FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC)
)
INSERT INTO mt_magazine_subscription (
magazine_subscription_id,
subscription_name,
magazine_id,
status )
VALUES (
(SELECT magazine_subscription_id,
subscription_name,
magazine_id,'1' as status
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC))
Try to use this
INSERT INTO mt_magazine_subscription (
magazine_subscription_id,
subscription_name,
magazine_id,
status )
SELECT magazine_subscription_id,
subscription_name,
magazine_id,
'1'
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ;
Use the hard coded value in select clause
INSERT INTO destination_table (
Field_1,
Field_2,
Field_3)
SELECT Field_1,
Field_2,
Field_3
FROM source_table;
BUT this is a BAD MYSQL
Do this instead:
drop the destination table: DROP DESTINATION_TABLE;
CREATE TABLE DESTINATION_TABLE AS (SELECT * FROM SOURCE_TABLE);
INSERT INTO mt_magazine_subscription SELECT *
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC