我无法将文本框中的数据插入ms访问数据库,我收到错误“Syntax error in INSERT INTO.
”
有人可以帮帮我吗?这是代码:
public void button1_Click(object sender, EventArgs e)//save
{
using (OleDbConnection conn = new
OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=|DataDirectory|\productdb.mdb"))
{
OleDbCommand CmdSql = new OleDbCommand("Insert into [product](Kod, names,
price,type,volume,manufacturer,importer)
enter code here
{
conn.Open();
CmdSql.Parameters.AddWithValue("@Kod", textBox1.Text);
CmdSql.Parameters.AddWithValue("@names", textBox2.Text);
CmdSql.Parameters.AddWithValue("@price", textBox3.Text);
CmdSql.Parameters.AddWithValue("@type", textBox4.Text);
CmdSql.Parameters.AddWithValue("@volume", textBox5.Text);
CmdSql.Parameters.AddWithValue("@manufacturer", textBox6.Text);
CmdSql.Parameters.AddWithValue("@importer", textBox7.Text);
CmdSql.ExecuteNonQuery();// i get the error here<<<
conn.Close();
}
}
答案 0 :(得分:7)
您缺少insert语句的VALUES
部分:
OleDbCommand CmdSql = new OleDbCommand("Insert into [product] (Kod, [names], price, type, volume, manufacturer, importer) VALUES (@Kod, @names, @price, @type, @volume, @manufacturer, @importer)", conn);
你正在使用Access和OldeDbCommand ......所以你实际上需要使用?
而不是命名参数:
OleDbCommand CmdSql = new OleDbCommand("Insert into [product] (Kod, [names], price, type, volume, manufacturer, importer) VALUES (?, ?, ?, ?, ?, ?, ?)", conn);
有关详细信息,请参阅this question。
附注:确保将任何保留的关键字包装在方括号中。
答案 1 :(得分:2)
单词NAMES是reserved keyword for MS-Access Jet SQL,您需要将其括在方括号中。这是收到语法错误的原因。 (当然,假设缺少的VALUES部分只是一个错字)。所以正确的语法是:
OleDbCommand CmdSql = new OleDbCommand("Insert into [product] (Kod, [names],price,type," +
"volume,manufacturer,importer) " +
"VALUES (?, ?, ?, ?, ?, ?, ?)";
我用一个问号更改了参数的占位符。 OleDb不支持命名参数,只是问号就可以了,但是,按照命令所期望的确切顺序将参数添加到OleDbCommand是极其重要的。
您需要解决代码的另一个方面。您可以使用方法AddWithValue
来构建参数列表。这意味着参数的数据类型由值的数据类型隐式派生。你在任何地方使用TextBox.Text
,这是一个字符串。因此,当接收字段属于不同类型时,这可能会导致更新出现问题(例如,价格可能是数字)如果数据库字段不是文本类型,则将相应的转换添加到传入参数值。
例如:
// Supposing you have an in place validator for the text to be converted......
CmdSql.Parameters.AddWithValue("@price", Convert.ToDecimal(textBox3.Text));
答案 2 :(得分:0)
你写了不完整的命令。应该是这样的:
OleDbCommand CmdSql = new OleDbCommand("Insert into [product](Kod, names,
price,type,volume,manufacturer,importer) values(@Kod,@names,@price,@type,
@volume,@manufacturer,@importer)");
命名参数仅在SqlCommand中支持而不在oledbcommand中,因此您必须使用?在命令文本中代替params。
答案 3 :(得分:0)
OleDbCommand不支持命名参数,因此您的SQL语句应为:
OleDbCommand CmdSql = new OleDbCommand(
"INSERT INTO [product] " +
"(Kod, names, price, type, volume, manufacturer ,importer) " +
"VALUES (?, ?, ?, ?, ?, ?, ?)"
, conn);
答案 4 :(得分:0)
始终以这种方式插入最简单,快速和令人难忘的方式。
String query = "Insert into Supplier(Kod, names,price,type,volume,manufacturer,importer) values('" + textBox1.text + "','" +textBox2.text + "','" + textBox3.text + "','" + textBox4.text + "','" + textBox5.text + "','" + textBox6.text + "','" + textBox7.text + "') ";
SqlCommand cmd = new SqlCommand(query, con);
con.Open();
cmd.ExecuteNonQuery();
con.Close();
答案 5 :(得分:0)
OleDbConnection con = new
OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=|DataDirectory|\productdb.mdb"
String strSQL="Insert into [product](Kod, names,
price,type,volume,manufacturer,importer) values(@Kod,@names,@price,@type,
@volume,@manufacturer,@importer)"
OleDBCommand CmdSql= new OleDBCommand(strSQL, con);
CmdSql.CommandType = CommandType.Text;
CmdSql.Parameters.AddWithValue("@Kod", textBox1.Text);
CmdSql.Parameters.AddWithValue("@names", textBox2.Text);
CmdSql.Parameters.AddWithValue("@price", textBox3.Text);
CmdSql.Parameters.AddWithValue("@type", textBox4.Text);
CmdSql.Parameters.AddWithValue("@volume", textBox5.Text);
CmdSql.Parameters.AddWithValue("@manufacturer", textBox6.Text);
CmdSql.Parameters.AddWithValue("@importer", textBox7.Text);
con.Open();
try
{
CmdSql.ExecuteNonQuery();
}
catch (Exception ex)
{
ex.Message.ToString();
}
finally
{
con.Close();
CmdSql.Dispose();
}
答案 6 :(得分:0)
string Query = "insert into tablename values ('" + txtstring.text + "', " + txtDouble.text + ")";
Cmd = new OleDbCommand();
Cmd.Connection = Con;
Cmd.CommandText = Query;
Cmd.ExecuteNonQuery();
答案 7 :(得分:-2)
Feilds =“T1,T2,T3,T4,T5,T6,T7,T8”; value =
“'NAJAFI','DONYA','3/26/2014 12:00:00 AM','کد:1نامونام خانوادگی:افشیننجفی','کد:dfنامونام خانوادگی:fsdfsdf','*',' - ','3/4/2014 7:13:29 PM“Table =”Table“;
OleDbConnection sc = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;DataSource="+@"G:\sazenama\SazeNama\Sazeama\DBSazeNama.accdb");
sc.Open();
OleDbCommand sm;
if (edit == false)
sm = new OleDbCommand("insert into " + Table + "(" + Feilds + ") values(" + value + "')", sc);
else
sm = new OleDbCommand("update " + Table + " set " + Feilds + "'", sc);
sm.ExecuteNonQuery();