Answer Posted / rangaraj

create table empmaster(ename varchar(34))

insert into empmaster values('r')

select * from empmaster

Query:

select top 6 (ename) from empmaster order by ename desc

write a database figure to implement the master detained relationship.

2936

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What is SCD (Slowly Changing Dimensions)? What are its types?

2668

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What is the use of NOLOCK locking hint?

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I have written the code as below. here problem is that dt remain null. how to solve thst please tell me. public partial class Form1 : Form { private DataTable DTable; private DataRow drow; public Form1() { InitializeComponent(); } private OleDbConnection getConnection() { OleDbConnection con=new OleDbConnection (@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\winApp for Student\winApp for Student\App_Data\SchooMgnSystem.mdb;Persist Security Info=True"); return con; } private void button1_Click(object sender, EventArgs e) { InsertData(); } private void InsertData() { if (DTable==null) { DTable = new DataTable(); DTable.Columns.Add("StudID", typeof(string)); DTable.Columns.Add("StudName", typeof (string)); DTable.Columns.Add("Address", typeof(string)); drow = DTable.NewRow(); drow[0] = txtStudID.Text; drow[1] = txtSTudName.Text; drow[2] = txtAddress.Text; DTable.Rows.Add(drow); grdStudent.DataSource = DTable; } else { drow = DTable.NewRow(); drow[0] = txtStudID.Text; drow[1] = txtSTudName.Text; drow[2] = txtAddress.Text; DTable.Rows.Add(drow); grdStudent.DataSource = DTable; } } private void button2_Click(object sender, EventArgs e) { string cmdstr; OleDbCommand cmd; OleDbConnection con = getConnection(); foreach (DataRow Drow in DTable.Rows) { cmdstr = "Insert into Student values('" + drow[0].ToString() + "','" + drow[1].ToString() + "','"+drow [2].ToString()+"')"; cmd = new OleDbCommand(cmdstr,con); try { con.Open(); cmd.ExecuteNonQuery(); } catch (Exception ex) { MessageBox.Show(ex.Message); } finally { con.Close(); } } }

2651

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What is the meaning of lock escalation and why/how to stop this?

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java.sql.SQLException:Invalid state, the statement object is closed Hai all i got this error when i am multiple times referesh web page

6659

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How will you Handle Error in SQL SERVER 2008?

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i have created ODBC through Data sources and tests completed sucessfully. when i am Trying to connect SQL Server through ODBC (ODBC :Oracle Open Client Adapter for ODBC 2.0.2.15.0 Microsoft SQL Server 09.00.3054) unable to Connect to SQL*Plus: Release 8.0.4.0.0. it is given following error-message . Error: ORA-03121: NO interface driver connected- function not performed.

2804

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When do you get "getwmicomexception"?

2682

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When you get following error? Error 3154: The backup set holds a backup of a database other than the existing database.

2522

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2225

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I entered the data in SQL toad version 9.0.1 in English and Arabic language but when i do the query i get the data in Arabic language with (??? question mark) ,please your support.

1656

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What is Mutex error in Triggers?

3071

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hp asking for replication floppy to do reinstall 25254 server assistant

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How to view the error log for any specific instance?

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