zicheng_307

摘要： -- quotename : 使字符串变成标识符select quotename('abc[]def')select quotename('abc[]def','''')select quotename('abc[]def','[')select quotename('abc[]def',']')select quotename('abc[]def','"')-- CHOOSE：从序列中选择第X个数据SELECT x,CHOO 阅读全文