Computer Science · Database Management Systems
यदि डेटा प्रविष्टि के दौरान कोई मान स्पष्ट रूप से प्रदान नहीं किया जाता है, तो तालिका (table) के कॉलम के लिए एक ____________ मान निर्दिष्ट किया जाता है।
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