Question

“插入Fn_Registration VALUES（'”+ txtFirstName.Text +“'，'”+ txtLastName.Text +“'，”+“'”+ txtEmailId.Text +“'，”+“'”+ txtPassword。文字+“'，”+“'”+ txtPanNumber.Text +“'，”+“'”+ txtAddress1.Text +“'，”+“'”+ txtAddress2.Text +“'，”+“'”+ txtFaxNo.Text +“'，”+“'”+ txtFirmName.Text +“'，”+“'”+ txtPhoneNumber.Text +“'，”+“'”+ txtTinNumber.Text +“'，'”+ txtAccountsStart .Text +“'，'”+ txtAccountsEnd.Text +“'，'”+ cbbVat.Text +“'，”+“'”+ cbbstates.Text +“'，”+“'”+ txtCity.Text +“ '，'“+ txtBankName.Text +”'，'“+ txtAccountNumber.Text +”'，“+”'“+ txtIFSCCode.Text +”'，“+”'“+ txtBN1.Text +”'，“+ “'”+ txtAC1.Text +“'，”+“'”+ txtIFSC1.Text +“'，”+“'”+ txtBN2.Text +“'，”+“'”+ txtAC2.Text +“'， “+”'“+ txtIFSC2.Text +”'）“;

这是我的插入代码进入mysql数据库，其中id num必须是自动递增的，但是mysql不执行自动递增可以任何一个帮助.........

C＃代码

string regInset = "INSERT INTO Fn_Registration VALUES ('" + 101 + "', '"+ 
txtFirstName.Text + "', '" + txtLastName.Text + "', " + " '" + txtEmailId.Text +
 "', " + " '" + txtPassword.Text + "', " + " '" + txtPanNumber.Text + "', " + " '" + 
txtAddress1.Text + "', " + " '" + txtAddress2.Text + "', " + " '" + txtFaxNo.Text +
 "'," + " '" + txtFirmName.Text + "', " + " '" + txtPhoneNumber.Text + "', " + " '" 
+ txtTinNumber.Text + "','" + txtAccountsStart.Text + "','" + txtAccountsEnd.Text + 
"','" + cbbVat.Text + "', " + " '" + cbbstates.Text + "', " + " '" + txtCity.Text +
 "', '" + txtBankName.Text + "', '" + txtAccountNumber.Text + "', " + " '" + 
txtIFSCCode.Text + "', " + " '" + txtBN1.Text + "', " + " '" + txtAC1.Text + "', " + 

" '" + txtIFSC1.Text + "', " + " '" + txtBN2.Text + "', " + " '" + txtAC2.Text + "', " 
+ " '" + txtIFSC2.Text + "')";

cmd = new MySqlCommand(regInset, con);
da = new MySqlDataAdapter(cmd);
ds = new DataSet();
da.Fill(ds, "Fn_Registration");
this.clearData();

Answer 1

在插入查询中，您可以使用：

INSERT INTO Fn_Registration(Names,of,columns,that,you,want,to,give,a,value) VALUES(values,for,those,columns);

如果然后从要为其赋值的列的名称中排除id列，则SQL应自动增加该值。

Answer 2

通过修改该表，可以使MySQL在表上自动递增：

ALTER TABLE tablename MODIFY id_Column INT NOT NULL AUTO_INCREMENT;

MySQL Documentation

我不能为mysql应用自动增量

2 个答案: