Computer Science · Database Management Systems
निम्नलिखित में से कौन सा SQL कथन 'BookStore' नामक मौजूदा तालिका (table) से प्राथमिक कुंजी (primary key) बाधा को सही ढंग से हटाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ALTER TABLE BookStore DROP PRIMARY KEY;✓
- 2DROP PRIMARY KEY FROM BookStore;
- 3DELETE PRIMARY KEY FROM BookStore;
- 4ALTER TABLE BookStore REMOVE PRIMARY KEY;
सही उत्तर देखें
ALTER TABLE BookStore DROP PRIMARY KEY;
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