ASP.NET Excel导入到SQL Server数据库
ASP.NET Excel导入到SQL Server数据库
提供把Excel里的数据导入到SQL Server 数据库，前提是Excel里的字段在Sql Server表里都有，不然会出现错误。注释很详细哦！要引用的命名空间是：
using System.Data.OleDb;
using System.Data.SqlClient;
//操作类
public class ExcelToSQL
{
//string SqlConnectionString = "Server=(local);Initial Catalog=Test;Integrated Security=True";
public SqlConnection sqlcon; //创建SQL连接
public SqlCommand sqlcom; //创建SQL命令对象
public ExcelToSQL()
{
DataOperation dataOperation = new DataOperation(); //用到平台的函数，就是初始化SqlConnection对象
DBUnit dbUnit = dataOperation.GetDbUnit();
sqlcon = (SqlConnection)dbUnit.cnt;
if (sqlcon.State.ToString() == "Open")
sqlcon.Close();
}
public int ImportSql(string excelPath, string tableName) //导入的Excel的路径，数据库里的表名
{
if (!TableExist(tableName)) //表名是否存在
return (int)ImportState.tableNameError;
DataTable dt = ExcelToDataTable(excelPath);
if (dt == null)
{
&nbs
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SELECT tagid, tagname from uchome_mtag WHERE tagname IN (SELECT tagname from uchome_mtag GROUP BY tagname HAVING (COUNT(tagname) > 1)) ORDER BY tagname ......
SQL版：
alter proc testguo
(
@cityid int,
@cityname nvarchar(100) output
)
as
select @cityname = city_name from BA_Hot_City where cityid = @cityid
select @cityname
go
declare @cityname nvarchar(100)
exec testguo 1,@cityname output
另一版：
ht ......
Student(S#,Sname,Sage,Ssex) 学生表
Course(C#,Cname,T#) 课程表
SC(S#,C#,score) 成绩表
Teacher(T#,Tname) 教师表
问题：
1、查询“001”课程比“002”课程成绩高的所有学生的学号；
select a.S# from (select s#,score from SC where C#='001') a,(select s#,score
fr ......
StringWriter sw = new StringWriter();
sw.WriteLine("访问购买率");
&nbs ......
//TransmitFile实现下载
protected void Button1_Click1(object sender, EventArgs e)
{
/*
&n ......
