根据条件将表中的选定值转换为另一个表 [英] Getting selected values from the table into another table based on a condition

问题描述

嗨..



我有一张名为Hikes的桌子。好吧，数据插入到.aspx页面的excel表中..



列如下：





EmpID名称1月11日 - 2月11日 - 11月11日



等等它继续..



它有3年的数据..



现在我有.aspx页面，我可以给empid ..在进入empid时，基于它我需要在gridview中获取该特定员工的数据..



gridview应该具有以下内容/>


EmpID，姓名和我需要显示加息金额和加息日期（如1月12日，2月13日）





假设1月11日起薪是6000，薪水在2月12日上涨11000和8月13日为16000 ..



现在我只需要显示所有值中的那些值..



i需要将它带到一个新的数据表并绑定它到gridview ..

怎么做排智迪stinct ..？



帮我继续进行

Hi..

I have a table called Hikes. Well the data into it is inserted through an excel sheet from the .aspx page..

The columns goes as follows..


EmpID Name Jan-11 Feb-11 Mar-11

and so on it continues..

It has data of 3 years..

And now i have .aspx page where i can give empid.. on entering the empid ,based on it i need to fetch the data of that particular employee in a gridview..

The gridview should have the folowing

EmpID,Name and with that i need to show the hike amount and hike date(like Jan-12 , Feb-13)


Suppose if the starting salary is 6000 on Jan-11 and salary is hiked on Feb-12 as 11000 and Aug-13 as 16000 ..

now i need to show only those values from all the values..

i need to carry this to a new datatable and bind it to gridview..
how to do row wise distinct..?

Help me to proceed further

推荐答案

嘿harsha，

试试这个代码

hey harsha,
Try this code

string conStr,sqlQuery;
int sal;
SqlConnection con = new SqlConnection(conStr);
SqlCommand cmd = new SqlCommand();
SqlDataAdapter da = null;
DataTable dt = new DataTable();
con.Open();
cmd.Connection = con;

//make data for testing  #saltable for salaries and #salhike to store salary hikes
sqlQuery = "create table #saltable(empid varchar(5),empname varchar(10),jan11 int,feb11 int,mar11 int)";
cmd.CommandText = sqlQuery;
cmd.ExecuteNonQuery();
sqlQuery = "create table #salhike(empid varchar(5),hike int,date varchar(10))";
cmd.CommandText = sqlQuery;
cmd.ExecuteNonQuery();
sqlQuery = "insert into #saltable select '12','ram',10,10,20";
cmd.CommandText = sqlQuery;
cmd.ExecuteNonQuery();

sqlQuery = "SELECT empid,empname,jan11,feb11,mar11 from #salTable where empid='"+ txtItem.Text +"'";
da = new SqlDataAdapter(sqlQuery, con);
da.Fill(dt);
sal = Convert.ToInt32(dt.Rows[0][2].ToString());
for (int i = 0; i < dt.Rows.Count; i++)
    for (int j = 2; j < dt.Columns.Count; j++) //from third column to last            {
        //if there is hike in salary
        if (sal < Convert.ToInt32(dt.Rows[i][j].ToString()))
        {
            string hike = Convert.ToString(Convert.ToInt32(dt.Rows[i][j].ToString()) - sal);
            sal = Convert.ToInt32(dt.Rows[i][j].ToString());   //set this as new base value
            //insert difference in a table
            sqlQuery = "INSERT into #salHike(empid,hike,date)";
            sqlQuery += " SELECT '"+ txtItem.Text +"',"+ hike +",'"+ dt.Columns[j].ColumnName +"'";
            cmd.CommandText = sqlQuery;
            cmd.ExecuteNonQuery();
        }
    }
dt = new DataTable();

sqlQuery = "SELECT * from #salHike";
da = new SqlDataAdapter(sqlQuery, con);
da.Fill(dt);
GridView1.DataSource = dt;
GridView1.DataBind();
con.Close();

输出 -



empid加息日期

12 10月3日

Output -

empid hike date
12 10 mar11

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