sql - How to show different rows of same column as two columns in Select statement? -


हमारे पास एक मेज है, जैसे 'टाइमकीपर' 

  id | प्रविष्टि_देट ------------------ 1 | 1406864087263 1 1406864087268

एंट्री_डेट कॉलम में और बाहर समय दर्शाता है। इसके अंदर और बाहर के लिए दो कॉलम लगाए जाने के बजाय हम एक स्तंभ का उपयोग करते थे। यह गलत डिजाइन है मैं स्वीकार करता हूं।

लेकिन मेरी ज़रूरत है कि मैं उत्पादन की तरह उत्पादन की तरह क्वेरी का चयन करना चाहता हूं, 

  id | In_time | आउट_टाइम 1 | 1406864087263 | 1406864087268

अर्थात्, चुनें स्तंभ में दो स्तंभों के समान कॉलम दिखाएं।

क्या यह संभव है?

मान लेता है कि आप हमेशा बाहर निकलने से पहले ही प्रवेश करें और केवल एक आईडी दर्ज करें और आईडी से बाहर निकलें। 

  SELECT id, min (entry_time)

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