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Question: How do I insert records using data reader?

Answer: The procedure for updating records using INSERT commands is very similar to the one we presented in the previous example (of SELECT) except that here the command does not return anything and thus the method to call on the SqlCommand object is called ExecuteNonQuery().

C# Version

string connString = "server=FARAZ; database=programmersheaven;" +
"uid=sa; pwd=";
SqlConnection conn = new SqlConnection(connString);

// INSERT Query
string cmdString ="INSERT INTO Author " +
"(authorId, name) " +
"VALUES(3, 'Anders Hejlsberg')";

SqlCommand cmd = new SqlCommand(cmdString, conn);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();



VB.Net Version

Dim connString As String = "server=FARAZ; database=programmersheaven;" + _
"uid=sa; pwd="
Dim conn As New SqlConnection(connString)
' INSERT Query
Dim cmdString As String = "INSERT INTO Author " + _
"(authorId, name) " + _
"VALUES(3, 'Anders Hejlsberg')"
Dim cmd As New SqlCommand(cmdString, conn)
conn.Open()
cmd.ExecuteNonQuery()
conn.Close()




Category ADO.NET Interview Questions & Answers - Exam Mode / Learning Mode
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Question: How do I insert records using data reader?
Answer:

The procedure for updating records using INSERT commands is very similar to the one we presented in the previous example (of SELECT) except that here the command does not return anything and thus the method to call on the SqlCommand object is called ExecuteNonQuery().

C# Version

string connString = "server=FARAZ; database=programmersheaven;" +
"uid=sa; pwd=";
SqlConnection conn = new SqlConnection(connString);

// INSERT Query
string cmdString ="INSERT INTO Author " +
"(authorId, name) " +
"VALUES(3, 'Anders Hejlsberg')";

SqlCommand cmd = new SqlCommand(cmdString, conn);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();



VB.Net Version

Dim connString As String = "server=FARAZ; database=programmersheaven;" + _
"uid=sa; pwd="
Dim conn As New SqlConnection(connString)
' INSERT Query
Dim cmdString As String = "INSERT INTO Author " + _
"(authorId, name) " + _
"VALUES(3, 'Anders Hejlsberg')"
Dim cmd As New SqlCommand(cmdString, conn)
conn.Open()
cmd.ExecuteNonQuery()
conn.Close()


Source: CoolInterview.com


A Data Reader is a Forword Only and Read Only Cursor, which is use to fetch data from the database. It cannot be use to Insert any data.

The above answer is OK but they are not using any datareader object. They are just associating a sql query to the command objects and executed command.ExecuteNonQuery() which does'nt use any DataReader object. Source: CoolInterview.com

Answered by: Arun Baruah | Date: 2/6/2010 | Contact Arun Baruah Contact Arun Baruah


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