MySQL column that auto generates data, longer than UUID
My friend has the problem as shown below. He asked at StackOverFlow and there is no reply yet till now so I wish to help him to try the luck here. Thanks for everyone that helps.
"I would like to ask if its possible to set up a database table that has a column that auto generates random alphanumerical data that is longer that what UUID can do. I've been using UUID for a while now but I would like to have a longer string of random data in my columns, something similar to that of a token authenticator (around 300+ characters). So when I insert values in columns, this particular column will auto generate data by itself. Thanks in advance."
Quoted from Reuben Tan
Source: https://stackoverflow.com/questions/43461771/mysql-column-that-auto-generates-data-longer-than-uuid
mysql uuid google-cloud-sql
edited May 23 '17 at 12:40
Community♦
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
bumped to the homepage by Community♦ 5 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
My friend has the problem as shown below. He asked at StackOverFlow and there is no reply yet till now so I wish to help him to try the luck here. Thanks for everyone that helps.
"I would like to ask if its possible to set up a database table that has a column that auto generates random alphanumerical data that is longer that what UUID can do. I've been using UUID for a while now but I would like to have a longer string of random data in my columns, something similar to that of a token authenticator (around 300+ characters). So when I insert values in columns, this particular column will auto generate data by itself. Thanks in advance."
Quoted from Reuben Tan
Source: https://stackoverflow.com/questions/43461771/mysql-column-that-auto-generates-data-longer-than-uuid
mysql uuid google-cloud-sql
edited May 23 '17 at 12:40
Community♦
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
bumped to the homepage by Community♦ 5 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24
add a comment |
My friend has the problem as shown below. He asked at StackOverFlow and there is no reply yet till now so I wish to help him to try the luck here. Thanks for everyone that helps.
"I would like to ask if its possible to set up a database table that has a column that auto generates random alphanumerical data that is longer that what UUID can do. I've been using UUID for a while now but I would like to have a longer string of random data in my columns, something similar to that of a token authenticator (around 300+ characters). So when I insert values in columns, this particular column will auto generate data by itself. Thanks in advance."
Quoted from Reuben Tan
Source: https://stackoverflow.com/questions/43461771/mysql-column-that-auto-generates-data-longer-than-uuid
mysql uuid google-cloud-sql
edited May 23 '17 at 12:40
Community♦
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
My friend has the problem as shown below. He asked at StackOverFlow and there is no reply yet till now so I wish to help him to try the luck here. Thanks for everyone that helps.
"I would like to ask if its possible to set up a database table that has a column that auto generates random alphanumerical data that is longer that what UUID can do. I've been using UUID for a while now but I would like to have a longer string of random data in my columns, something similar to that of a token authenticator (around 300+ characters). So when I insert values in columns, this particular column will auto generate data by itself. Thanks in advance."
Quoted from Reuben Tan
Source: https://stackoverflow.com/questions/43461771/mysql-column-that-auto-generates-data-longer-than-uuid
mysql uuid google-cloud-sql
mysql uuid google-cloud-sql
edited May 23 '17 at 12:40
Community♦
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
edited May 23 '17 at 12:40
Community♦
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
edited May 23 '17 at 12:40
Community♦
1
edited May 23 '17 at 12:40
Community♦
1
edited May 23 '17 at 12:40
Community♦
1
1
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
asked Apr 19 '17 at 1:00
Tan Yih WeiTan Yih Wei
11
11
bumped to the homepage by Community♦ 5 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 5 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24
add a comment |
When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24
When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24
When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24
add a comment |
1 Answer
1
active
oldest
votes
You can create the pair of triggers ON INSERT and ON UPDATE that perform any desired transformations 'on the fly'
CREATE TRIGGER `myuuid_autoinserter`
BEFORE INSERT ON `table` -- or BEFORE UPDATE
FOR EACH ROW
BEGIN
SET loooonguuid = CONCAT(OLD.uuid, OLD.uuid, OLD.uuid, OLD.uuid)
SET NEW.uuid = loooonguuid;
END
When you run some INSERT or UPDATE query on the table trigger will replace submitted value of the uuid by string stored in the loooonguuid variable.
Sure you can do as complex and randomized transformation as you want.
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
add a comment |
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You can create the pair of triggers ON INSERT and ON UPDATE that perform any desired transformations 'on the fly'
CREATE TRIGGER `myuuid_autoinserter`
BEFORE INSERT ON `table` -- or BEFORE UPDATE
FOR EACH ROW
BEGIN
SET loooonguuid = CONCAT(OLD.uuid, OLD.uuid, OLD.uuid, OLD.uuid)
SET NEW.uuid = loooonguuid;
END
When you run some INSERT or UPDATE query on the table trigger will replace submitted value of the uuid by string stored in the loooonguuid variable.
Sure you can do as complex and randomized transformation as you want.
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
add a comment |
You can create the pair of triggers ON INSERT and ON UPDATE that perform any desired transformations 'on the fly'
CREATE TRIGGER `myuuid_autoinserter`
BEFORE INSERT ON `table` -- or BEFORE UPDATE
FOR EACH ROW
BEGIN
SET loooonguuid = CONCAT(OLD.uuid, OLD.uuid, OLD.uuid, OLD.uuid)
SET NEW.uuid = loooonguuid;
END
When you run some INSERT or UPDATE query on the table trigger will replace submitted value of the uuid by string stored in the loooonguuid variable.
Sure you can do as complex and randomized transformation as you want.
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
add a comment |
You can create the pair of triggers ON INSERT and ON UPDATE that perform any desired transformations 'on the fly'
CREATE TRIGGER `myuuid_autoinserter`
BEFORE INSERT ON `table` -- or BEFORE UPDATE
FOR EACH ROW
BEGIN
SET loooonguuid = CONCAT(OLD.uuid, OLD.uuid, OLD.uuid, OLD.uuid)
SET NEW.uuid = loooonguuid;
END
When you run some INSERT or UPDATE query on the table trigger will replace submitted value of the uuid by string stored in the loooonguuid variable.
Sure you can do as complex and randomized transformation as you want.
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
You can create the pair of triggers ON INSERT and ON UPDATE that perform any desired transformations 'on the fly'
CREATE TRIGGER `myuuid_autoinserter`
BEFORE INSERT ON `table` -- or BEFORE UPDATE
FOR EACH ROW
BEGIN
SET loooonguuid = CONCAT(OLD.uuid, OLD.uuid, OLD.uuid, OLD.uuid)
SET NEW.uuid = loooonguuid;
END
When you run some INSERT or UPDATE query on the table trigger will replace submitted value of the uuid by string stored in the loooonguuid variable.
Sure you can do as complex and randomized transformation as you want.
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
answered Apr 19 '17 at 10:48
KondybasKondybas
2,588912
2,588912
add a comment |
add a comment |
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When you first insert the row? Or whenever you update the row, too?
– Rick James
Apr 19 '17 at 1:24