Q. How can you check if an email exists in the database before allowing registration?

पंजीकरण की अनुमति देने से पहले आप कैसे जांच सकते हैं कि डेटाबेस में कोई ईमेल मौजूद है या नहीं?

A
Run a SQL SELECT query
B
Use JavaScript validation
C
Use client-side validation only
D
None of the above

Explanation

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

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