java - Does it make sense to have a sql PreparedStatement pool? -

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इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 1 उत्तर

एक तैयार किए गए डेटा के रूप में इसमें precompiled sql कमांड है, इसलिए जब हम इस प्रकार के एक पूल बनाते हैं ताकि ऑब्जेक्ट को बहुत अधिक (जैसे थ्रेड पूल) नहीं बना और नष्ट कर दें।
क्या यह कोई मतलब नहीं है? या मैं बस इतना उलझन में हूँ?

मुझे लगता है कि आप क्या चाहते हैं तैयार कथनों का कैशिंग है कुछ कनेक्शन पूल आपके लिए वैकल्पिक ट्यूनिंग पैरामीटर के रूप में करते हैं (वेबलॉगिक, मुझे लगता है कि जेबॉस भी)। परिस्थितियों के लिए काम जहां एक ही तैयार वक्तव्य को एक रनटाइम सत्र में कई बार इस्तेमाल किया जाएगा, जरूरी नहीं कि एक ही लेनदेन में भी। एक स्थैतिक का आपका उपयोग मूल रूप से है इसका मतलब है कि आप केवल सोचते हैं कि आपके पास इनमें से कोई एक होगा जो कई बयानों के लिए कैश की आवश्यकता होगी, इसलिए सैद्धांतिक रूप से यह काम करेगा। मुझे यकीन नहीं है कि यह बात है कि अगर तैयार कथन कैश कनेक्शन में साझा किया जा सकता है, या यदि यह कनेक्शन-विशिष्ट है।


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