This is a very simple MySQL query.
INSERT INTO users_questions (user_id, question_id, mcopt_id,timestamp)
VALUES (50053, 875, 3092, '2015-08-22 18:01:44');
When I use it I get
ERROR 1054 (42S22): Unknown column 'marks' in 'field list'
marks is a column in the same table whose default value is set to NULL and in the above query I don't even use the column name marks.
So why exactly am i getting the error?
Structure of table:
+-------------+-----------+------+-----+-------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-----------+------+-----+-------------------+-------+
| user_id | int(11) | NO | PRI | NULL | |
| question_id | int(11) | NO | PRI | NULL | |
| mcopt_id | int(11) | NO | | NULL | |
| timestamp | timestamp | NO | | CURRENT_TIMESTAMP | |
| marks | int(11) | NO | | NULL | |
+-------------+-----------+------+-----+-------------------+-------+
Just to make it clear I also get the error when I provide the value of marks
INSERT INTO users_questions (user_id, question_id, mcopt_id, timestamp, marks) VALUES (50053, 875, 3094, '2015-08-22 19:15:07', 1)
`
Sometimes, when you implement wrong trigger, it happens.
So just drop your trigger by using:
DROP TRIGGER [IF EXISTS] [schema_name.]trigger_name
and it actually worked in my Mysql case. Maybe helpful for some of you.
A:
create table users_questions2
( user_id int not null,
question_id int not null,
mcopt_id int not null,
timestamp timestamp not null,
marks int not null
);
describe users_questions2;
+-------------+-----------+------+-----+-------------------+-----------------------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-----------+------+-----+-------------------+-----------------------------+
| user_id | int(11) | NO | | NULL | |
| question_id | int(11) | NO | | NULL | |
| mcopt_id | int(11) | NO | | NULL | |
| timestamp | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| marks | int(11) | NO | | NULL | |
+-------------+-----------+------+-----+-------------------+-----------------------------+
INSERT INTO users_questions2 (user_id, question_id, mcopt_id, timestamp) VALUES (50053, 875, 3092, '2015-08-22 18:01:44');
Error Code: 1364. Field 'marks' doesn't have a default value 0.047 sec
INSERT INTO users_questions2 (user_id, question_id, mcopt_id, timestamp,marks) VALUES (50053, 875, 3092, '2015-08-22 18:01:44',1);
-- 1 row(s) affected
INSERT INTO users_questions2 (user_id, question_id, mcopt_id, timestamp,marks) VALUES (50053, 875, 3092, '2015-08-22 18:01:44',null);
Error Code: 1048. Column 'marks' cannot be null 0.000 sec
B:
drop table users_questions2;
create table users_questions2
( user_id int null,
question_id int null,
mcopt_id int null,
timestamp timestamp null,
marks int null
);
describe users_questions2;
+-------------+-----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-----------+------+-----+---------+-------+
| user_id | int(11) | YES | | NULL | |
| question_id | int(11) | YES | | NULL | |
| mcopt_id | int(11) | YES | | NULL | |
| timestamp | timestamp | YES | | NULL | |
| marks | int(11) | YES | | NULL | |
+-------------+-----------+------+-----+---------+-------+
INSERT INTO users_questions2 (user_id, question_id, mcopt_id, timestamp) VALUES (50053, 875, 3092, '2015-08-22 18:01:44');
1 row(s) affected
So the only way I can get my describe table to look like yours is if they are not null columns (section A above).
Which means your columns do not accept nulls.
Edit:
show variables like "%version%";
+-------------------------+------------------------------+
| Variable_name | Value |
+-------------------------+------------------------------+
| innodb_version | 5.6.24 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.6.24-log |
| version_comment | MySQL Community Server (GPL) |
| version_compile_machine | x86_64 |
| version_compile_os | Win64 |
+-------------------------+------------------------------+
Column marks is defined as not nullable with default value NULL. I suppose that is the problem. You should assign a value in the insert or change default value
The table you are reference in the query does not have a column named marks. First check that you have to correct query which failed and not looking at a different query. Specially when the error message say the table doesn't have a marks column and your query doesn't even have this column written then you are looking at the wrong query. Then check the table you are using and that it has a column named marks. Your error message has nothing to do about NULL or NOT NULL.
I found a similar problem with the command:
INSERT INTO `rel_artsizeprice` (`art_id`, `artsize_id`, `price_tax`) VALUES (1, 3, 2.5);
ERROR 1054 (42S22): Unknown column ' 2.5' in 'field list'
If I delete the space before 2.5, it works:
INSERT INTO `rel_artsizeprice` (`art_id`, `artsize_id`, `price_tax`) VALUES (1, 3,2.5);
Query OK, 1 row affected (0.06 sec)
I a large list of such insert values there are only some places, which generates an error. So I think, that there is an error in the source of the commandline tool (readline or mysql).
I used:
mysql --version
mysql Ver 15.1 Distrib 10.0.26-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2
The table You had created will not accept the Null value you have to define the value of marks. It cannot be null probably you have used the not null. if you want your column to be null better use simply null.
One more technical Mistake you are doing here is defining two primary keys. A table should only have one primary key it can have enormous unique keys but primary key should only be one.
You must use single quote marks before and after each record.
INSERT INTO users_questions (user_id, question_id, mcopt_id,timestamp)
VALUES ('50053', '875', '3092', '2015-08-22 18:01:44');
Related
mysql> describe taps;
+-------------+-------------+------+-----+-------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-------------+------+-----+-------------------+-------+
| tag_id | int(11) | NO | | NULL | |
| time_stamp | timestamp | NO | | CURRENT_TIMESTAMP | |
| device_id | varchar(45) | YES | | NULL | |
| device_type | varchar(45) | YES | | NULL | |
+-------------+-------------+------+-----+-------------------+-------+
mysql> INSERT INTO `taps` (tag_id, time_stamp) VALUES(0, 1451610061);
ERROR 1292 (22007): Incorrect datetime value: '1451610061' for column 'time_stamp' at row 1
WHY?? I have found many similar questions, but not of them seem quite this black and white.
1451610061 is a valid timestamp. I checked it at http://www.unixtimestamp.com/ and it evaluates as expected.
So, why doesn't MySql like it?
The MySQL timestamp format is 2016-02-13 15:48:29 or Y-m-d H:i:s convert your timestamp to that format first, and then MySQL will accept it.
If you insert a new record without defining the timestamp, and then select the row from that table, you will notice that that's the format that it gives to the new default record.
if if you want to convert it directly in your query use:
INSERT INTO `taps` (tag_id, time_stamp) VALUES(0, from_unixtime('1451610061'));
Using this Q&A on StackOverflow as reference.
And from_unixtime documentation
Try this ->
$item->time_stamp = date('Y-m-d H:i:s', strtotime($request->time_stamp));
I have recently started to work with MySQL for my study job and now face following problem:
My predecessor created a textmining table of the following structure:
+------------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+--------------+------+-----+---------+-------+
| TokenId | int(11) | NO | PRI | 0 | |
| Value | varchar(255) | YES | | NULL | |
| Frequency | int(11) | YES | | NULL | |
| PMID | int(11) | YES | MUL | NULL | |
+------------+--------------+------+-----+---------+-------+
In the context of restructuring, I added the following column:
+------------+--------------+------+-----+---------+-------+
| NewTokenId | int(11) | YES | | NULL | |
+------------+--------------+------+-----+---------+-------+
If I now run the query:
insert into TitleToken(NewTokenId) select t.TokenId from Token as t, TitleToken as tt where t.Value = tt.Value
or even the query:
insert into TitleToken(NewTokenId) values(1);
I get following output:
ERROR 1062 (23000): Duplicate entry '0' for key 'PRIMARY'
As I said, I am relatively new to (hands-on) *SQL and it feels like a stupid mistake, but since the column NewTokenId is no primary key, not unique and even Null is YES, I thought I'd be able to insert basically anything I want.
Any hint would be appreciated... thanks in advance :)
The problem here is that you have a default value for the primary key "TokenID", if you do not insert a value for the key in your insert statement the system will automatically insert 0. However, if there is another tuple with the same value for this attribute (which is probable because the default is 0) you will get that error.
You are attempting to perform an insert into a table without providing a unique value for TokenId. By default, according to the table description, TokenId defaults to 0, you cannot have multiple identical values in that column.
I have this table in mysql called ts1
+----------+-------------+---------------+
| position | email | date_of_birth |
+----------+-------------+---------------+
| 3 | NULL | 1987-09-03 |
| 1 | NULL | 1982-03-26 |
| 2 | Sam#gmail | 1976-10-03 |
| 2 | Sam#gmail | 1976-10-03 |
+----------+-------------+---------------+
I want to drop the equal rows using ALTER IGNORE.
I have tried
ALTER IGNORE TABLE ts1 ADD UNIQUE INDEX inx (position, email, date_of_birth);
and
ALTER IGNORE TABLE ts1 ADD UNIQUE(position, email, date_of_birth);
In both cases I get
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IGNORE TABLE ts1 ADD UNIQUE(position, email, date_of_birth)' at line 1
I'm using mySQL 5.7.9. Any suggestions?
To do it inline against the table, given just the columns you show consider the below. To do it in a new table as suggested by Strawberry, see my pastie link under comments.
create table thing
( position int not null,
email varchar(100) null,
dob date not null
);
insert thing(position,email,dob) values
(3,null,'1987-09-03'),(1,null,'1982-03-26'),
(2,'SamIAm#gmail.com','1976-10-03'),(2,'SamIAm#gmail.com','1976-10-03');
select * from thing;
+----------+------------------+------------+
| position | email | dob |
+----------+------------------+------------+
| 3 | NULL | 1987-09-03 |
| 1 | NULL | 1982-03-26 |
| 2 | SamIAm#gmail.com | 1976-10-03 |
| 2 | SamIAm#gmail.com | 1976-10-03 |
+----------+------------------+------------+
alter table thing add id int auto_increment primary key;
Delete with a join pattern, deleting subsequent dupes (that have a larger id number)
delete thing
from thing
join
( select position,email,dob,min(id) as theMin,count(*) as theCount
from thing
group by position,email,dob
having theCount>1
) xxx -- alias
on thing.position=xxx.position and thing.email=xxx.email and thing.dob=xxx.dob and thing.id>xxx.theMin
-- 1 row affected
select * from thing;
+----------+------------------+------------+----+
| position | email | dob | id |
+----------+------------------+------------+----+
| 3 | NULL | 1987-09-03 | 1 |
| 1 | NULL | 1982-03-26 | 2 |
| 2 | SamIAm#gmail.com | 1976-10-03 | 3 |
+----------+------------------+------------+----+
Add the unique index
CREATE UNIQUE INDEX `thing_my_composite` ON thing (position,email,dob); -- forbid dupes hereafter
View current table schema
show create table thing;
CREATE TABLE `thing` (
`position` int(11) NOT NULL,
`email` varchar(100) DEFAULT NULL,
`dob` date NOT NULL,
`id` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`id`),
UNIQUE KEY `thing_my_composite` (`position`,`email`,`dob`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
I have a table of this structure:
mysql> desc securities;
+-----------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------------+-------------+------+-----+---------+-------+
| sym | varchar(19) | NO | PRI | | |
| bqn | int(11) | YES | | NULL | |
| sqn | int(11) | YES | | NULL | |
| tqn | int(11) | YES | | NULL | |
+-----------------+-------------+------+-----+---------+-------+
4 rows in set (0.01 sec)
I am trying to do a select and an update within the same query, so the reason I have chosen
insert into securities (sym, bqn, sqn , tqn) values('ANK', 50,0,1577798)
on duplicate key update bqn=bqn+50 , sqn=sqn+0 , tqn=tqn+1577798;
When I ran the above I observed it is in fact changing the values for all the other rows also.
Is this behaviour expected? I am using MySQL Database.
Your fiddle is missing the key, and the INSERT statement in the right panel (where it does not belong in the first place) is using different column names … *sigh*
Define the symbol column as PRIMARY KEY – and use the VALUES() syntax to get the values to add in the ON UPDATE part, so that you don’t have to repeat them every single time:
insert into securities
(symbol, buyerquan, sellerquan , totaltradedquan)
values('BANKBARODA', 73, 0, 4290270)
on duplicate key update
buyerquan=buyerquan+VALUES(buyerquan),
sellerquan=sellerquan+VALUES(sellerquan),
totaltradedquan=totaltradedquan+VALUES(totaltradedquan);
Works perfectly fine, result values are as to be expect from the input: http://sqlfiddle.com/#!2/21638f/1
MySQL is issuing this error when I try to execute a query where the column count does match. Here is the structure of the table:
mysql> desc S_3068;
+-------------------+----------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------------+----------------------+------+-----+---------+-------+
| SfmID | smallint(5) unsigned | NO | PRI | 1 | |
| DatValue | float | NO | | 0 | |
| DatRawValue | int(10) unsigned | NO | | 0 | |
| DatTime | int(10) unsigned | NO | PRI | 0 | |
| DatBusOrder | tinyint(3) unsigned | NO | PRI | 1 | |
| DatFormulaVersion | tinyint(3) unsigned | NO | | 0 | |
+-------------------+----------------------+------+-----+---------+-------+
6 rows in set (0.00 sec)
I get the aforementioned error when I execute this query:
mysql> insert ignore into S_3068 values (133, 15.82, 5542, 1339309260, 0, 1);
ERROR 1136 (21S01): Column count doesn't match value count at row 1
As you can see, the column count does match the value count. Now what's even more puzzling is that the query works perfectly fine with SfmID = 132:
mysql> insert ignore into S_3068 values (132, 15.82, 5542, 1339309260, 0, 1);
Query OK, 1 row affected (0.00 sec)
SfmID being a unsigned smallint, that doesn't make any sense to me.
Any help on this matter would be greatly appreciated.
EDIT: The error was caused by a trigger associated to the table. Please see comments for more information.
The error was caused by a trigger associated to the table, doing a side insert on another table for value 133 but not for value 132. The error issued by MySQL was about the other table (which column count was indeed wrong) and not about the main table in which I was inserting data.