Question

i have two questions, that i encountered in my learning project

1)
Setting:
i have a table with 17 fields.

i just need 15 of the 17 fields in my programm is ist better to get all fields with * or should i declare the 15 fields?

2)
Setting:
i want to create Metatags for my site, the Metatag values are in an array, with some other data(8 fields for the metatags 7 for page settings -> result of the SQL query above)

at the moment i filter it with an if statement like
if($key != “name1” || $key != “name2″ …|| $line != ”)

is it better so seperate the metatag data and save it in a new array?
or should i seperate it in the database and put it in an seperate table?

Thanks n.redick

Answer 1

1. Select * is evil
2. It’s almost always best to normalize your metadata in a separate table (allows you to use indexes, searches, joins, etc.)