trying to imporove sql advance
trying to imporove sql advance

yathit/ydn-db,kakadiya91/ydn-db,yathit/ydn-db,kakadiya91/ydn-db,yathit/ydn-db,kakadiya91/ydn-db,kakadiya91/ydn-db,yathit/ydn-db,kakadiya91/ydn-db,yathit/ydn-db