What is the use of NOLOCK locking hint?

1832

IMG-02003: 2FF03 - incorrect color histogram feature specification

1760

IMP-00064: Definition of LOB was truncated by export

6465

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(); } } }

2709

ORA-26028: index string.string initially in unusable state

3912

RMAN-05017: no copy of datafile number found to recover

2465

what is the instrument that used in Mechanical Energy??

2733

ORA-26084: direct path context already finished

1995

if the lengths of two wires are same and the area of cross sections is 4:7 then what will be the ratio of current passing through these wires

2751

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

6713

ORA-26027: unique index string.string partition string initially in unusable state

6790

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

2579

ORA-26076: cannot set or reset value after direct path structure is allocated

2032

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

2714

ORA-26030: index string.string had string partitions made unusable due to:

1986