array field type
in [Databases]
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From: "Tony Marston" on 6 Mar 2007 06:22 "Sancar Saran" <sancar.saran(a)evodot.com> wrote in message news:200703050015.50252.sancar.saran(a)evodot.com... > On Sunday 04 March 2007 23:04, Sancar Saran wrote: >> Hi, >> >> I want to know is there any db server around there for store php arrays >> natively. >> >> Regards >> >> Sancar > Thanks for responses, it seems I have to give more info about situation. > > In my current project, we had tons of arrays. They are very deep and > unpredictable nested arrays. > > Currently we are using serialize/unserialize and it seems it comes with > own > cpu cost. Xdebug shows some serializing cost blips. Sure it was not SO BIG > deal (for now of course). > > My db expertise covers a bit mysql and mysql does not have any array type > field (enum just so simple). Wrong! Take a look at the SET datatype http://dev.mysql.com/doc/refman/4.1/en/set.html. This allows you to have an array of values in a single field, and the user can select any number of them. -- Tony Marston http://www.tonymarston.net http://www.radicore.org > I just want to know is there any way to keep array data type natively in a > sql > field. > > Regards. > > Sancar
From: Micah Stevens on 6 Mar 2007 12:38 > Wrong! Take a look at the SET datatype > http://dev.mysql.com/doc/refman/4.1/en/set.html. This allows you to have an > array of values in a single field, and the user can select any number of > them. > > Sort of, but not really: This is a really specialized keyword, and depends on binary mapping of enum-ish sets. As a results you have a maximum of 64 possible values, and only 1 dimension. Large or multdimensional arrays wouldn't work with this. -Micah
From: Mark on 6 Mar 2007 14:29
Sancar Saran wrote: > Thanks for all those replies. It seems there was no easy solution (and or > serializing was better solution) for us. > > Our arrays contains lots of things.. XML may not fit because content of > array may broke xml structure. > Before you give up, take a look at the XMLDBX PHP extension at http://www.mohawksoft.org It uses XML and works really well. |