Difference in SQL syntax for enabling a constraint (SQL Server) -

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क्या इन दो विधियों में कोई अंतर है? 

  वैकल्पिक तालिका [table_name] चेक चेक चेक कन्स्ट्रेंट के साथ [constraint_name]

और 

  वैकल्पिक तालिका [table_name]

से:

जांच के साथ | NOCHECK के साथ:

यह निर्दिष्ट करता है कि तालिका में मौजूद डेटा नए या जोड़े गए या फिर से सक्षम विदेशी कुंजी या चेक बाधा के विरुद्ध मान्य नहीं है या नहीं। यदि निर्दिष्ट नहीं किया गया है, तो चेक के साथ माना जाता है।

इसलिए, चूंकि यह डिफ़ॉल्ट "इसे चेक" करना है, इसमें कोई अंतर नहीं है।


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