mysql - On using letters as unique identifiers -


कोड / संकेताक्षर की एक तालिका बनाना, प्रत्येक मामले के एक अद्वितीय संयोजन के साथ संवेदनशील अक्षर क्या यह एक पूर्णांक आईडी का उपयोग करना छोड़कर ठीक है और उन्हें विदेशी कुंजी जांच के लिए उपयोग करना ठीक है?
या फिर ऐसे मुद्दों होंगे जिन्हें मैं अनजान हूं?

देश या एक भाषा तालिका जैसे अपेक्षाकृत स्थैतिक डेटा के साथ काम करते समय यह आम तौर पर एक मुद्दा नहीं है, country_code या language_code पर keyed। मैं निश्चित रूप से एक पूर्णांक आईडी से परेशान नहीं हूं।

लेकिन अगर यह एक मेज है जिसमें नियमित रूप से अतिरिक्त डेटा डाला जाता है, तो यह आमतौर पर एक पूर्णांक आईडी के साथ काम करना आसान होता है, विशेषकर एक ऑटोमैन्रिमेंट मान।


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