HashTable实例 public class HashTable_msg { public HashTable_msg() { String sum_sql="select mobilenum,count(*) from SJSJ_Msg where (left(in_date,6)=(select left(CONVERT(varchar(12) , getdate(), 112 ),6)))group by mobilenum" Hashtable<

SQL框架，完全用 SQL 写的.T-SQL编程的一个模板,用try catch 的语法写存储过程，同时把数据验证的业务写进去就叫做框架了。-SQL framework, written entirely in SQL. T-SQL programming a template, with the try catch syntax to write stored procedures, data validation, while the opinions on the business wri