I have this list that i'm ordering by units_unit_id and is there way I can get
a natural order so that D4 and D5 comes before D12
Thanks,
Matt
+---------------+
| units_unit_id |
+---------------+
| D1 |
| D12 |
| D14 |
| D15 |
| D16 |
| D18 |
| D19 |
| D4 |
| D5 |
+---------------+ 12 4135
Matias Silva wrote: I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting.
Easy way would be to change the table so that D and number would be in
different columns. Another way is to use some string manipulation
functions to parse string into character and a number and then order by
number. This might mean slow queries if you have many rows in your table
so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this.
I'm not sure if there is a better way to do it, you can look for such
functions from the manual: http://dev.mysql.com/doc/mysql/en/String_functions.html
Matias Silva wrote: I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting.
Easy way would be to change the table so that D and number would be in
different columns. Another way is to use some string manipulation
functions to parse string into character and a number and then order by
number. This might mean slow queries if you have many rows in your table
so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this.
I'm not sure if there is a better way to do it, you can look for such
functions from the manual: http://dev.mysql.com/doc/mysql/en/String_functions.html
Matias Silva wrote: I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting.
Easy way would be to change the table so that D and number would be in
different columns. Another way is to use some string manipulation
functions to parse string into character and a number and then order by
number. This might mean slow queries if you have many rows in your table
so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this.
I'm not sure if there is a better way to do it, you can look for such
functions from the manual: http://dev.mysql.com/doc/mysql/en/String_functions.html
Great point Aggro...
My 2cents...
natural order for me is D01, D02, D03... D12, D13.. etc.
"Aggro" <sp**********@y ahoo.com> wrote in message
news:Pe******** ****@read3.inet .fi... Matias Silva wrote:
I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting. Easy way would be to change the table so that D and number would be in different columns. Another way is to use some string manipulation functions to parse string into character and a number and then order by number. This might mean slow queries if you have many rows in your table so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this. I'm not sure if there is a better way to do it, you can look for such functions from the manual:
http://dev.mysql.com/doc/mysql/en/String_functions.html
Great point Aggro...
My 2cents...
natural order for me is D01, D02, D03... D12, D13.. etc.
"Aggro" <sp**********@y ahoo.com> wrote in message
news:Pe******** ****@read3.inet .fi... Matias Silva wrote:
I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting. Easy way would be to change the table so that D and number would be in different columns. Another way is to use some string manipulation functions to parse string into character and a number and then order by number. This might mean slow queries if you have many rows in your table so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this. I'm not sure if there is a better way to do it, you can look for such functions from the manual:
http://dev.mysql.com/doc/mysql/en/String_functions.html
Great point Aggro...
My 2cents...
natural order for me is D01, D02, D03... D12, D13.. etc.
"Aggro" <sp**********@y ahoo.com> wrote in message
news:Pe******** ****@read3.inet .fi... Matias Silva wrote:
I have this list that i'm ordering by units_unit_id and is there way I can get a natural order so that D4 and D5 comes before D12
It is not a natural order, natural order is the one you are getting. Easy way would be to change the table so that D and number would be in different columns. Another way is to use some string manipulation functions to parse string into character and a number and then order by number. This might mean slow queries if you have many rows in your table so first solution is better if it is possible to do.
left() right() and length() functions atleast are able to to do this. I'm not sure if there is a better way to do it, you can look for such functions from the manual:
http://dev.mysql.com/doc/mysql/en/String_functions.html
bobb wrote: Great point Aggro... My 2cents... natural order for me is D01, D02, D03... D12, D13.. etc.
...., D99, D100, etc.
--
Eric Lafontaine
mail http://cerbermail.com/?WaqHmkTe5E
bobb wrote: Great point Aggro... My 2cents... natural order for me is D01, D02, D03... D12, D13.. etc.
...., D99, D100, etc.
--
Eric Lafontaine
mail http://cerbermail.com/?WaqHmkTe5E
bobb wrote: Great point Aggro... My 2cents... natural order for me is D01, D02, D03... D12, D13.. etc.
...., D99, D100, etc.
--
Eric Lafontaine
mail http://cerbermail.com/?WaqHmkTe5E This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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