挣扎着“FROM子句中的语法错误”

Question

string type = "Cash"; 
string type1 = "Card"; 
if (radioButton1.Checked) 
{ 
    myDB.Open(); 
    OleDbDataAdapter adapter = new OleDbDataAdapter(@"SELECT * FROM Transaction", myDB); 
    adapter.Fill(dt); 
    OleDbCommand cmd = new OleDbCommand(@"INSERT INTO Transaction(Type, Amount) Values ('" + type + "', " + label3.Text + ")", myDB); 
    cmd.ExecuteNonQuery(); 
} 
else if(radioButton2.Checked) 
{ 
    OleDbDataAdapter adapter = new OleDbDataAdapter(@"SELECT * FROM Transaction", myDB); 
    adapter.Fill(dt); 
    OleDbCommand cmd = new OleDbCommand(@"INSERT INTO Transaction(Type, Amount) Values ('" + type1 + "', " + label3.Text + ")", myDB); 
    cmd.ExecuteNonQuery(); 
} 
myDB.Close(); 

Answer 1

事务是一个SQL关键字！你需要把它放在方括号中：

string type = "Cash"; 
string type1 = "Card"; 
if (radioButton1.Checked) 
{ 
    myDB.Open(); 
    OleDbDataAdapter adapter = new OleDbDataAdapter(@"SELECT * FROM [Transaction]", myDB); 
    adapter.Fill(dt); 
    OleDbCommand cmd = new OleDbCommand(@"INSERT INTO [Transaction](Type, Amount) Values ('" + type + "', " + label3.Text + ")", myDB); 
    cmd.ExecuteNonQuery(); 
} 
else if(radioButton2.Checked) 
{ 
    OleDbDataAdapter adapter = new OleDbDataAdapter(@"SELECT * FROM [Transaction]", myDB); 
adapter.Fill(dt); 
    OleDbCommand cmd = new OleDbCommand(@"INSERT INTO [Transaction](Type, Amount) Values ('" + type1 + "', " + label3.Text + ")", myDB); 
    cmd.ExecuteNonQuery(); 
} 
myDB.Close();