摘要：
将字符串转换为指定日期格式的字符串.to_char(to_date(t1.zzsj,'yyyy-MM-dd'),'yyyy-MM-dd')substr(t1.zhsj,1,4)||'-'||substr(t1.zhsj,5,2)||'-'||substr(t1.zhsj,7,2) as zhsj,上面方式获取日期时, 值为空时会出现'--'情况. 阅读全文
摘要：
public DataSet GetSingleQueryList(string condition) { SqlParameter[] parameters={ new SqlParameter("@condition1",SqlDbType.NVarChar,50),new SqlParameter("@condition2",SqlDbType.NVarChar,50)}; par... 阅读全文