3268
The reasons are primarily economical ( different DBMSs may have different total costs of ownership or TCOs ) , functional , and operational ( different DBMSs may have different capabilities ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None