`effective_end_utc` timestamp NOT NULL COMMENT 'The UTC timestamp for when the target ceases to be in effect.',
This will end up giving me
ERROR 1067 (42000) at line 27: Invalid default value for 'effective_end_utc'
Base on other reponse, I have even set the mode to following at the begining of schema
SET GLOBAL SQL_MODE='ALLOW_INVALID_DATES'
Any idea whats going wrong?
The schema should be changed with a default value like
`reported_timestamp_utc` timestamp NULL DEFAULT NULL COMMENT
Related
I want to change my field name to default Null but i am unable to solve this issue Here i am trying to change my deleteAt field to defaut Null but its giving me the error
Syntax error or access violation: 1064 You have an
error in your SQL syntax; check the manual that
corresponds to your MariaDB server version for the right syntax to use near
'deletedAt timestamp default NULL' at
line 1
Here is my code
DB::statement('ALTER TABLE insurance CHANGE COLUMN deleted_at deletedAt timestamp default NULL');
I want to set default NULL but i am unable to solve this and i am confused about this issue. your help need here
Try this
ALTER TABLE `insurance` CHANGE COLUMN `deleted_at`
`deleted_at` TIMESTAMP NULL DEFAULT NULL;
ALTER TABLE insurance CHANGE COLUMN deleted_at deletedAt timestamp default NULL
Is incorrect.
Use this please.
ALTER TABLE insurance MODIFY COLUMN deleted_at timestamp NULL DEFAULT NULL
The word deletedAt isn't a valid syntax. There is an error in your query.
CREATE TABLE seckill (
`seckill_id` BIGINT NOT NULL AUTO_INCREMENT COMMENT '商品库存id',
`name` VARCHAR(120) NOT NULL COMMENT '商品名称',
`number` INT NOT NULL COMMENT '库存数量',
`start_time` TIMESTAMP NOT NULL COMMENT '开始时间',
`end_time` TIMESTAMP NOT NULL COMMENT '结束时间',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
PRIMARY KEY (seckill_id),
KEY idx_start_time(start_time),
KEY idx_end_time(end_time),
KEY idx_create_time(create_time)
) ENGINE=InnoDB AUTO_INCREMENT=1000 DEFAULT CHARSET=utf8 COMMENT='秒杀库存表';
When I try to create the table with the previous query, this is the error I get:
ERROR 1067 (42000): Invalid default value for 'end_time'
How can I solve this issue?
MySQL treats timestamp in a special way, that is a little hard to find in the documentation when you don't know what you are looking for:
In MySQL, the TIMESTAMP data type differs in nonstandard ways from other data types:
TIMESTAMP columns not explicitly declared with the NULL attribute are assigned the NOT NULL attribute. (Columns of other data types, if not explicitly declared as NOT NULL, permit NULL values.) Setting such a column to NULL sets it to the current timestamp.
The first TIMESTAMP column in a table, if not declared with the NULL attribute or an explicit DEFAULT or ON UPDATE clause, is automatically assigned the DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP attributes.
TIMESTAMP columns following the first one, if not declared with the NULL attribute or an explicit DEFAULT clause, are automatically assigned DEFAULT '0000-00-00 00:00:00' (the “zero” timestamp). For inserted rows that specify no explicit value for such a column, the column is assigned '0000-00-00 00:00:00' and no warning occurs.
Those nonstandard behaviors remain the default for TIMESTAMP but as of MySQL 5.6.6 are deprecated and this warning appears at startup:
[Warning] TIMESTAMP with implicit DEFAULT value is deprecated.
Please use --explicit_defaults_for_timestamp server option
(see documentation for more details).
That means your second timestamp not null column will get an implicit default value of '0000-00-00 00:00:00', which is not allowed in combination with the NO ZERO DATE and strict sql mode (which is by default enabled in MySQL 5.7) and results in your error.
To solve your problem, enable the option --explicit_defaults_for_timestamp. It treats the timestamp columns as you expected (and will be the default behaviour in some future MySQL release anyway), or allow them to be null.
To solve your problem:
set ##session.explicit_defaults_for_timestamp=on;
I have the following field in a CREATE TABLE statement:
`date` DATETİME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
But I get the following error:
Error: #1067 - Invalid default value for 'date'
How can i fix that problem?
MySQL 5.6.5 added that default syntax for datetime, previously it was only available for TIMESTAMP.
In other words, you most likely need to change your datatype or upgrade your MySQL.
ALTER TABLE `mysystem`.`projects`
MODIFY COLUMN `project_capture_date` DATE NOT NULL DEFAULT CURRENT_DATE();
gives:
Error Code: 1064. 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 'CURRENT_DATE()'
at line 2
Current row definition:
project_capture_date, date, NO, , 0000-00-00
Just recently changed the engine to InnoDB from MyISAM.
As per the mysql document
http://dev.mysql.com/doc/refman/5.0/en/data-type-defaults.html
The DEFAULT value clause in a data type specification indicates a
default value for a column. With one exception, the default value must
be a constant; it cannot be a function or an expression. This means,
for example, that you cannot set the default for a date column to be
the value of a function such as NOW() or CURRENT_DATE. The exception
is that you can specify CURRENT_TIMESTAMP as the default for a
TIMESTAMP
To solve this you may need to define the datatype as TIMESTAMP column with DEFAULT CURRENT_TIMESTAMP
DEMO
If you do not want TIMESTAMP then you have do while inserting by setting the column value as Now()
In my DB I've a table defined as follow:
I've noticed 2 strange behaviours (v 6.0):
1)
Exporting this table from mysql workbench menu I get this, where I have:
sex enum('M','F') DEFAULT NULL,
from mysql Reference Manual I read:
If an ENUM column is declared to permit NULL, the NULL value is a valid value for the column, and the default value is NULL. If an ENUM column is declared NOT NULL, its default value is the first element of the list of permitted values.
and:
birth_date date DEFAULT NULL,
that I declared as NOT NULL.
2)
I've tried this query :
"insert into users(name) values('mark');"
the insert works in mysql workbench and not in sqlFiddle.
I expected some kind of error from mysql WB but I reveive just warnings:
1 row(s) affected, 5 warning(s):
1364 Field 'surname' doesn't have a default value
1364 Field 'birth_date' doesn't have a default value
1364 Field 'email' doesn't have a default value
1364 Field 'password' doesn't have a default value
1364 Field 'username' doesn't have a default value
Am I missing something or are they some kind of bug?
This is a bug, I'd say. There's no default set for the specific columns. How comes MySQL Workbench generates a default clause then? Please file a bug report at http://bugs.mysql.com to get this fixed.