executenonquery

In my C# project, I'm using System.Data.SQLite.dll downloaded from CodeProject . My problem is as per the title - how to get the error codes after calling SqliteCommand.ExecuteNonQuery() function? Error codes such as SQLITE_CONSTRAINT, SQLITE_BUSY, SQLITE_LOCKED as shown here . use the Exception.StackTrace or the SQLiteException.ErrorCode try { } catch(SQLiteException ex) { string code = ex.ErrorCode; } I'm going to add to this to help others, if you're developing in .NET. Use the SQLiteErrorCode enumeration to test the result, cast the ErrorCode: try { } catch(SQLiteException ex) {

I have created a simple program to insert values into the table [regist] , but I keep getting the error Incorrect syntax near ')' on cmd.ExecuteNonQuery(); : private void button1_Click(object sender, EventArgs e) { SqlConnection cn = new SqlConnection("Data Source=DELL-PC;initial catalog=AdventureWorks2008R2 ; User ID=sa;Password=sqlpass;Integrated Security=SSPI;"); SqlCommand cmd = new SqlCommand("INSERT INTO dbo.regist (" + " FirstName, Lastname, Username, Password, Age, Gender,Contact, " + ") VALUES (" + " @textBox1.Text, @textBox2.Text, @textBox3.Text, @textBox4.Text, @comboBox1.Text,

I am currently working on a C# project and I am running an insert query which also does a select at the same time, e.g.: INSERT INTO table (SELECT * FROM table WHERE column=date) Is there a way I can see how many rows were inserted during this query? ExecuteNonQuery - returns the number of rows affected. SqlCommand comm; // other codes int numberOfRecords = comm.ExecuteNonQuery(); If you run the SQL from your question in a SqlCommand and check the return value of ExecuteNonQuery it should tell you how many records were affected. From the documentation : Return Value Type: System.Int32 The

For some reason, ExecuteNonQuery() in C# returns -1 , though when I run a query separately, the value returns the actual value needed. For Example: try { var connString ="Data Source=ServerName;InitialCatalog=DatabaseName;Integrated Security=true;" SqlConnection conn = new SqlConnection(connString); SqlCommand someCmd = new SqlCommand("SELECT COUNT(*) FROM SomeTable"); someCmd.Connection = conn; conn.Open(); var theCount = cmd.ExecuteNonQuery(); conn.Close(); } catch(Exception ex) { Console.WriteLine(ex.Message); } When the command is executed it returns -1 . Though if run the query separately

Trying to figure out if it's best to use ExecuteScalar or ExecuteNonQuery if I want to return the identity column of a newly inserted row. I have read this question and I understand the differences there, but when looking over some code I wrote a few weeks ago (whilst heavily borrowing from this site) I found that in my inserts I was using ExecuteScalar , like so: public static int SaveTest(Test newTest) { var conn = DbConnect.Connection(); const string sqlString = "INSERT INTO dbo.Tests ( Tester , Premise ) " + " VALUES ( @tester , @premise ) " + "SET @newId = SCOPE_IDENTITY(); "; using (conn