读取SQL Server数据库

Question

I need to read data from a SQL Server database. Something doesn't work with syntax of the table, which has Id as a primary key plus several items.

SqlConnection CON = new SqlConnection("Data Source = pc\\sqlexpress; Initial Catalog = dccDB; Integrated Security = True");
string strSQL = "SELECT Id Item" + "FROM [dbo.Table]";

SqlCommand cmd = new SqlCommand(strSQL, CON);
{
    CON.Open();
    MessageBox.Show("SQL DataBase dccDB.dbo is connected");
    SqlDataReader reader = cmd.ExecuteReader();     (ERROR !!!)

    while ( reader.Read() )
    {
       MessageBox.Show( reader["Id"].ToString(), reader["Item"].ToString());
    }

    reader.Close();
    CON.Close();
}

There is a error message: ex.Message

Wrong syntax close to 'dbo.Table'.

Many thanks for your ideas.

Answer 1

You're missing a space in your SQL and using the brackets incorrectly. Columns need to be separated by commas. The line should be:

string strSQL = "SELECT Id, Item FROM [dbo].[Table]";

Answer 2

在ur查询中，在Item之后留一个空格，然后将dbo.table与[dbo]。[table]分开，例如：

string strSQL = "SELECT Id, Item " + "FROM [dbo].[Table]";

Answer 3

Item和From之间没有空格，将您的strSql行替换为以下内容：

string strSQL = "SELECT Id Item " + "FROM [dbo.Table]";