How do I set “MONTHNAME()” function as column default in MySQL?
Actually I need current month name as lowercase string as default value in one of the table column;
DB table may look like Like:
name : john
joined : january
When I try to use mysql function LOWER( MONTHNAME( NOW() ) ) as defailt value this gives me error.
Btw I'm not interested in creating triggers.
any magic queries to do that?
mysql default default-value
asked Nov 21 '18 at 5:41
APuAPu
9214
add a comment |
Actually I need current month name as lowercase string as default value in one of the table column;
DB table may look like Like:
name : john
joined : january
When I try to use mysql function LOWER( MONTHNAME( NOW() ) ) as defailt value this gives me error.
Btw I'm not interested in creating triggers.
any magic queries to do that?
mysql default default-value
asked Nov 21 '18 at 5:41
APuAPu
9214
What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40
add a comment |
Actually I need current month name as lowercase string as default value in one of the table column;
DB table may look like Like:
name : john
joined : january
When I try to use mysql function LOWER( MONTHNAME( NOW() ) ) as defailt value this gives me error.
Btw I'm not interested in creating triggers.
any magic queries to do that?
mysql default default-value
asked Nov 21 '18 at 5:41
APuAPu
9214
Actually I need current month name as lowercase string as default value in one of the table column;
DB table may look like Like:
name : john
joined : january
When I try to use mysql function LOWER( MONTHNAME( NOW() ) ) as defailt value this gives me error.
Btw I'm not interested in creating triggers.
any magic queries to do that?
mysql default default-value
mysql default default-value
asked Nov 21 '18 at 5:41
APuAPu
9214
asked Nov 21 '18 at 5:41
APuAPu
9214
asked Nov 21 '18 at 5:41
APuAPu
9214
asked Nov 21 '18 at 5:41
APuAPu
9214
asked Nov 21 '18 at 5:41
APuAPu
9214
9214
What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40
add a comment |
What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40
What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40
add a comment |
3 Answers
3
active
oldest
votes
From the MySQL documentation:
With one exception, enclose expression default values within parentheses to distinguish them from literal constant default values.
So, the following should work:
CREATE TABLE yourTable (
month_name VARCHAR(12) DEFAULT (LOWER(MONTHNAME(NOW())))
...
)
As @Madhur has pointed out, using an expression as a default will only work from MySQL 8 onwards.
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
add a comment |
If you use MySQL 8.0 or later, then the answers provided by @TimBiegeleisen and @fa06 should solve the problem. In otherwise
... the default value specified in a DEFAULT clause must be a literal constant; it cannot be a function or an expression.
See details in documentation.
So, for previous versions you need to find another way. For example, you could define a trigger that sets default value for the column if the value is not specified:
CREATE TABLE MyTable (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
joined VARCHAR(12)
);
CREATE TRIGGER defaultMonth
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.joined = IFNULL(NEW.joined, LOWER(MONTHNAME(NOW())));
See also live example for the proposed solution.
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
add a comment |
You can try below
CREATE TABLE orderdata (
order_date DATE
, order_month VARCHAR(50) AS (lower(MONTHNAME(order_date)))
);
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
From the MySQL documentation:
With one exception, enclose expression default values within parentheses to distinguish them from literal constant default values.
So, the following should work:
CREATE TABLE yourTable (
month_name VARCHAR(12) DEFAULT (LOWER(MONTHNAME(NOW())))
...
)
As @Madhur has pointed out, using an expression as a default will only work from MySQL 8 onwards.
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
add a comment |
From the MySQL documentation:
With one exception, enclose expression default values within parentheses to distinguish them from literal constant default values.
So, the following should work:
CREATE TABLE yourTable (
month_name VARCHAR(12) DEFAULT (LOWER(MONTHNAME(NOW())))
...
)
As @Madhur has pointed out, using an expression as a default will only work from MySQL 8 onwards.
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
add a comment |
From the MySQL documentation:
With one exception, enclose expression default values within parentheses to distinguish them from literal constant default values.
So, the following should work:
CREATE TABLE yourTable (
month_name VARCHAR(12) DEFAULT (LOWER(MONTHNAME(NOW())))
...
)
As @Madhur has pointed out, using an expression as a default will only work from MySQL 8 onwards.
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
From the MySQL documentation:
With one exception, enclose expression default values within parentheses to distinguish them from literal constant default values.
So, the following should work:
CREATE TABLE yourTable (
month_name VARCHAR(12) DEFAULT (LOWER(MONTHNAME(NOW())))
...
)
As @Madhur has pointed out, using an expression as a default will only work from MySQL 8 onwards.
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
edited Nov 21 '18 at 5:56
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
answered Nov 21 '18 at 5:44
Tim BiegeleisenTim Biegeleisen
230k1395150
230k1395150
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
add a comment |
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
1
1
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
I think a caveat needs to be added that it will work only from version 8.0.13 and onwards.
– Madhur Bhaiya
Nov 21 '18 at 5:55
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
Thanks, this is helpful but unfortunately I'm working with 5.7.*, is there any solution for that?
– APu
Nov 21 '18 at 12:33
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
I think you would need to use a trigger.
– Tim Biegeleisen
Nov 21 '18 at 12:48
add a comment |
If you use MySQL 8.0 or later, then the answers provided by @TimBiegeleisen and @fa06 should solve the problem. In otherwise
... the default value specified in a DEFAULT clause must be a literal constant; it cannot be a function or an expression.
See details in documentation.
So, for previous versions you need to find another way. For example, you could define a trigger that sets default value for the column if the value is not specified:
CREATE TABLE MyTable (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
joined VARCHAR(12)
);
CREATE TRIGGER defaultMonth
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.joined = IFNULL(NEW.joined, LOWER(MONTHNAME(NOW())));
See also live example for the proposed solution.
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
add a comment |
If you use MySQL 8.0 or later, then the answers provided by @TimBiegeleisen and @fa06 should solve the problem. In otherwise
... the default value specified in a DEFAULT clause must be a literal constant; it cannot be a function or an expression.
See details in documentation.
So, for previous versions you need to find another way. For example, you could define a trigger that sets default value for the column if the value is not specified:
CREATE TABLE MyTable (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
joined VARCHAR(12)
);
CREATE TRIGGER defaultMonth
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.joined = IFNULL(NEW.joined, LOWER(MONTHNAME(NOW())));
See also live example for the proposed solution.
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
add a comment |
If you use MySQL 8.0 or later, then the answers provided by @TimBiegeleisen and @fa06 should solve the problem. In otherwise
... the default value specified in a DEFAULT clause must be a literal constant; it cannot be a function or an expression.
See details in documentation.
So, for previous versions you need to find another way. For example, you could define a trigger that sets default value for the column if the value is not specified:
CREATE TABLE MyTable (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
joined VARCHAR(12)
);
CREATE TRIGGER defaultMonth
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.joined = IFNULL(NEW.joined, LOWER(MONTHNAME(NOW())));
See also live example for the proposed solution.
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
If you use MySQL 8.0 or later, then the answers provided by @TimBiegeleisen and @fa06 should solve the problem. In otherwise
... the default value specified in a DEFAULT clause must be a literal constant; it cannot be a function or an expression.
See details in documentation.
So, for previous versions you need to find another way. For example, you could define a trigger that sets default value for the column if the value is not specified:
CREATE TABLE MyTable (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50),
joined VARCHAR(12)
);
CREATE TRIGGER defaultMonth
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.joined = IFNULL(NEW.joined, LOWER(MONTHNAME(NOW())));
See also live example for the proposed solution.
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
edited Nov 22 '18 at 1:47
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
answered Nov 21 '18 at 16:50
AlexanderAlexander
3,10371330
3,10371330
add a comment |
add a comment |
You can try below
CREATE TABLE orderdata (
order_date DATE
, order_month VARCHAR(50) AS (lower(MONTHNAME(order_date)))
);
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
add a comment |
You can try below
CREATE TABLE orderdata (
order_date DATE
, order_month VARCHAR(50) AS (lower(MONTHNAME(order_date)))
);
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
add a comment |
You can try below
CREATE TABLE orderdata (
order_date DATE
, order_month VARCHAR(50) AS (lower(MONTHNAME(order_date)))
);
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
You can try below
CREATE TABLE orderdata (
order_date DATE
, order_month VARCHAR(50) AS (lower(MONTHNAME(order_date)))
);
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
answered Nov 21 '18 at 5:45
fa06fa06
15.6k21018
15.6k21018
add a comment |
add a comment |
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What is your MySQL version?
– Alexander
Nov 21 '18 at 5:48
Currently I'm using MySQL 5.7.*, by the accepted answer I knew that I can't do it, but be sure to post an answer if you've any trick.
– APu
Nov 21 '18 at 12:38
Btw I can do it exactly stated in the question in MariaDB 10.3 (which still using MySQL 5.7.*), Adding this comment to help someone who's using MariaDB
– APu
Nov 21 '18 at 12:40