vb.org Archive - MyChenQL, part 6

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- - MyChenQL, part 6 (https://vborg.vbsupport.ru/showthread.php?t=47288)

filburt1

01-02-2003 08:15 PM

MyChenQL, part 6

...while making a table in PMA:

Code:

Error



SQL-query :  



CREATE TABLE `settings` (



`id` INT( 11 ) UNSIGNED NOT NULL AUTO_INCREMENT,

`varname` VARCHAR( 255 ) NOT NULL ,

`prettyname` VARCHAR( 255 ) NOT NULL ,

`description` TEXT NOT NULL ,

`isboolean` TINYINT( 1 ) UNSIGNED NOT NULL ,

`value` TEXT NOT NULL ,

PRIMARY KEY ( `id` ) ,

UNIQUE (

`varname` ,

`prettyname` 

)

) 



MySQL said: 





Specified key was too long. Max key length is 500

Huh?

Xenon

01-02-2003 08:24 PM

???

change int(11) into int (10)...

maybe that's the reason why vb always use int 10

filburt1

01-02-2003 08:53 PM

I've made all the other tables in my database have int(11) for the project I'm working on with the exact same attributes (primary auto_increment unsigned) and they work.

Xenon

01-02-2003 09:04 PM

hmm, maybe the length of all keys summed up is to long...

try to shorten varname to varchar(200) and retry

filburt1

01-02-2003 09:07 PM

Nope, not the problem either; all the other tables are using 255, too.

Code:

mysql> describe posts;

+--------------+------------------+------+-----+---------+----------------+

| Field        | Type             | Null | Key | Default | Extra          |

+--------------+------------------+------+-----+---------+----------------+

| id           | int(11) unsigned |      | PRI | NULL    | auto_increment |

| subject      | varchar(255)     |      |     |         |                |

| contents     | text             |      |     |         |                |

| threadid     | int(11)          |      | UNI | 0       |                |

| datetime     | int(11)          |      |     | 0       |                |

| posteruserid | int(11)          |      |     | 0       |                |

+--------------+------------------+------+-----+---------+----------------+

6 rows in set (0.00 sec)

Xenon

01-02-2003 09:16 PM

yeah but you forgot, there the subject is not a unique key, in your query above varname is a unique key :)

just try out to change it, we will see if i'm right or not :)

filburt1

01-02-2003 09:17 PM

Well what I did was remove UNIQUE for the two columns and it worked. I don't understand why it wouldn't allow two unique columns though, I mean what I want is no two identical varnames and no two identical prettynames...

filburt1

01-02-2003 09:18 PM

Pfft, making them unique after creating the table worked. I wonder if it's a MySQL bug or something; a though occurs: 255 + 255 > 500 so maybe that's what it was griping about.

*is completely confused*

Xenon

01-03-2003 09:18 PM

hmm, i think i've said that above?

Quote:

maybe the length of all keys summed up is to long...
try to shorten varname to varchar(200) and retry

so i think another MyChenQL thing i could solve and learn from it :)

filburt1

01-03-2003 10:00 PM

Meh, for now I'll just make it 255 in the install script and then make them unique right after creating the table :)

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