What is live lock, deadlock and what is Lock escalation?

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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(); } } }

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Answers for Complete This Song B_C_A_A _IL K_A KA_E, S__AN J__E B__D_ J__E

3235

how can i get the question papers of year 2006 and 2007 of 12th commerce gujarat board

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I am using Qt 5.6 during compilation it stops and gives error about Qmake The process "C:QtQt5.6.35.6.3msvc2015_64inqmake.exe" crashed. Error while building/deploying project untitled1 (kit: Desktop Qt 5.6.3 MSVC2015 64bit) When executing step "qmake"

1815

NZE-28868: Peer certificate chain check failed.

2814

hi can any one tell me.... do we need to use color catridge also in HP Deskjet 630C series printer.... i have kept only black catridge but its not working.......

2252

How will you Handle Error in SQL SERVER 2008?

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can a merchant exporter adjust or claim refund of input service tax ??

2294

what is the instrument that used in Mechanical Energy??

2693

For pH-4 calculation it is subtracted from the previous pH7 buffer value is the same procedure to be followed for calculation of remaining buffers??

1636

What is the difference between return code and completion code. When i was searching in the direct for the problem, the following errors displayed. Please can any1 explain these. Completion Code => 4 Message Id => XXDR012I Short Text => XDR field overflow. Key=SER. Len=8. Completion Code => 8 Message Id => XSQF009I Short Text => Sys call open() failed.Filename=/opt/apps/cdt3/USA/outbound/CD810O.errno=17. Completion Code => 8 Message Id => XCPR010I Short Text => Open failed for copy in OPEN_DEST_DATA. Errno=17. can you explain those 3 completion codes and also with difference between return code and completion code

11885

when will we use lsmw , bdc and bapi? which will be easy to use and which is used for which type of data

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a pleasant evening. i would like to ask a question about yellow journalism. This is another term for sensationalism right? i just wanted to know a lot of articles or studies with regards to the effect this yellow journalism could effect the interpretation of the students,especially college students who are taking Communication course. please help me answer this.

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