我怎么能写下准备好的陈述而不是这个:请帮帮我
String qry= "INSERT INTO
Registration1(RegistrationNo,Date,SeniorPerson,NativePlace,Kul,Gotra,KulSwami,ResidensialAddress,PinCode,STDcode,TelephoneNo,MobileNo,Email,Website,Education,Branch,BirthDate,BloodGroup) VALUES('"+regno+"','"+dt+"','"+nm+"','"+place+"','"+kul+"','"+gotra+"','"+kswami+"','"+raddr+"','"+pincode+"','"+stdcd+"','"+tele+"','"+mno+"','"+email+"','"+website+"','"+education+"','"+branch+"','"+bdt+"','"+bloodgrp+"')";
stmt.executeUpdate(qry);
答案 0 :(得分:4)
PreparedStatement stmt = conn.prepareStatement("INSERT INTO Registration1(RegistrationNo,Date,SeniorPerson,NativePlace,Kul,Gotra,KulSwami,ResidensialAddress,PinCode,STDcode,TelephoneNo,MobileNo,Email,Website,Education,Branch,BirthDate,BloodGroup) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
int col = 1;
stmt.setString(col++, regno);
stmt.setDate(col++, new java.sql.Date(dt.getTime())); // assuming dt is a java.util.Date
(etc)
stmt.executeUpdate();
答案 1 :(得分:1)
`enter code here`you can use prepared statement of insertion like..
Connection MyCon=null;
PreparedStatement Ps=null;
try{
myCon=(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/demo","student","student");
// these are string from where we can take inputs .
String Fname;
String Lname;
String email;
String department;
String Salary;
Fname=JOptionPane.showInputDialog(null,"Enter First Name");
Lname=JOptionPane.showInputDialog(null,"Enter Last Name");
email=JOptionPane.showInputDialog(null,"Enter Your Email");
department=JOptionPane.showInputDialog(null,"Enter Department Name");
Salary=JOptionPane.showInputDialog(null,"Enter Salary Name");
**String insertion="insert into employees"
+ "(first_name, last_name, email, department ,salary )"+"values "
+ "(?,?,?,?,?)";**
**Ps=(PreparedStatement) MyCon.prepareStatement(insertion);
Ps.setString(1,Fname);
Ps.setString(2,Lname);
Ps.setString(3,email);
Ps.setString(4,department);
Ps.setString(5,Salary);
Ps.executeUpdate();**
}catch(Exception e)
{
e.printtrace();
}
答案 2 :(得分:0)
您应该使用此模板:
PreparedStatement pstmt = con .prepareStatement ("INSERT INTO TableName (ColumnNmae1, ColumnNmae2, ColumnNmae3...) VALUES (?,?,?...);
pstmt.setType(1, value);
pstmt.setType(2, value);
pstmt.setType(3, value);
etc.
在准备好的状态中,您需要使用与您在法规中处理的列完全相同的问号数量。
对于你提出setValue的每个问号,你需要为eac值typr选择正确的设置,有setString setInt等...
在您的具体情况下,它应该是这样的:
PreparedStatement pstmt = con .prepareStatement ("INSERT INTO TableName (RegistrationNo,Date,SeniorPerson...) VALUES (?,?,?...);
pstmt.setString(1, regno);
pstmt.setDate(2, Date);
pstmt.setString(3, SeniorPerson);
etc.
答案 3 :(得分:-1)
你的例子是如何不使用PreparedStatement
。
这是一个更好的主意:
// Here's a PreparedStatement to satisfy the person who downvoted.
PreparedStatement stmt = connection.prepareStatement();
// I might have missed a '?' - you should check it.
String qry= "INSERT INTO Registration1(RegistrationNo,Date,SeniorPerson,NativePlace,Kul,Gotra,KulSwami,ResidensialAddress,PinCode,STDcode,TelephoneNo,MobileNo,Email,Website,Education,Branch,BirthDate,BloodGroup) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
// Bind the variables here
stmt.executeUpdate(qry);
您应该仔细检查this。