Question
In a database, a field that uniquely identifies each record in a table is called: / डेटाबेस में, वह फ़ील्ड जो किसी तालिका के प्रत्येक रिकॉर्ड की विशिष्ट पहचान करती है, कहलाती है:
Option 2 : Primary key / प्राइमरी की
Detailed Solution
सही उत्तर Primary key / प्राइमरी की है।
A primary key uniquely identifies each record and cannot contain duplicate or null values. / प्राइमरी की प्रत्येक रिकॉर्ड की विशिष्ट पहचान करती है और इसमें डुप्लीकेट या null मान नहीं हो सकते।
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prepsnap.in • IT & ComputingQuestion:
In a database, a field that uniquely identifies each record in a table is called: / डेटाबेस में, वह फ़ील्ड जो किसी तालिका के प्रत्येक रिकॉर्ड की विशिष्ट पहचान करती है, कहलाती है:
Correct Answer: Primary key / प्राइमरी की
A primary key uniquely identifies each record and cannot contain duplicate or null values. / प्राइमरी की प्रत्येक रिकॉर्ड की विशिष्ट पहचान करती है और इसमें डुप्लीकेट या null मान नहीं हो सकते।