摘要：MSDN：Blocks the calling thread until a thread terminates1. 什么是 the calling thread?2. 什么是 a thread?运行一个程序，即开启了一个进程和至少一个线程，干活的是线程而非进程！the calling thread... 阅读全文

摘要：private void button1_Click(object sender, EventArgs e) { try { string fileName = Application.StartupPath.R... 阅读全文

摘要：Oracle 按指定顺序排序select tp_id from pro_type where tp_id in (select obj_tp_id from pro_object_occ where obj_mdl_id=238488)and tp_id in (79217,79221,79218,... 阅读全文

摘要：SQL重复记录查询方法2008年08月14日星期四21:01SQL重复记录查询1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断select * from people where peopleId in (select peopleId from people g... 阅读全文

摘要：selectcol.name as ColumnName,col.max_length as DataLength,col.is_nullable as IsNullable,t.name as DataType,ep.value as Description,( select top 1 i... 阅读全文