Java 在SQL查询中使用jDateChooser
我正在做一个小练习,使用ORACLE HR数据库和Netbeans,我想使用搜索按钮计算两个Java 在SQL查询中使用jDateChooser,java,sql,swing,netbeans,jdatechooser,Java,Sql,Swing,Netbeans,Jdatechooser,我正在做一个小练习,使用ORACLE HR数据库和Netbeans,我想使用搜索按钮计算两个jDateChooser值之间的差异,下面是我的jFrame的屏幕截图,它解释了一切,包括我的输出错误: 这是我的代码: import java.util.*; import java.sql.*; import java.text.DateFormat; import java.text.SimpleDateFormat; import javax.swing.*; import javax.swi
jDateChooser
值之间的差异,下面是我的jFrame的屏幕截图,它解释了一切,包括我的输出错误:
这是我的代码:
import java.util.*;
import java.sql.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
public class Exercise extends javax.swing.JFrame {
Connection Con = myConn.getCon();
Statement St = null;
ResultSet Rs = null;
String tab[] = {"LAST_NAME", "FIRST_NAME", "JOB_TITLE", "DEPARTMENT_NAME", "SALARY"};
DefaultTableModel dtm = new DefaultTableModel(tab, 0);
public Exercise() {
initComponents();
jTable1.setModel(dtm);
fill_combo_job();
fill_combo_dept();
int Rc = dtm.getRowCount();
row_count_label.setText(Integer.toString(Rc));
}
public void fill_combo_job(){
try{
//Getting data from table JOBS
St = Con.createStatement();
Rs = St.executeQuery("SELECT DISTINCT JOB_ID FROM JOBS");
//Filling our jcombobox
while(Rs.next()){
job_id_combo.addItem(Rs.getString("JOB_ID"));
}
}catch(Exception ex){
System.out.println(ex.toString());
}
}
private void fill_combo_dept(){
try{
St = Con.createStatement();
Rs = St.executeQuery("SELECT DISTINCT DEPARTMENT_ID FROM EMPLOYEES WHERE DEPARTMENT_ID IS NOT NULL ORDER BY DEPARTMENT_ID");
while(Rs.next()){
dept_id_combo.addItem(Rs.getString("DEPARTMENT_ID"));
}
}catch(Exception ex){
System.out.println(ex.toString());
}
}
private void search_btn(){
DateFormat df = new SimpleDateFormat("dd/MM/yyyy");
String date1 = df.format(jDateChooser1.getDate());
String date2 = df.format(jDateChooser2.getDate());
try{
St = Con.createStatement();
Rs = St.executeQuery("SELECT e.LAST_NAME, e.FIRST_NAME, j.JOB_TITLE, d.DEPARTMENT_NAME, e.SALARY FROM EMPLOYEES e, JOBS j, DEPARTMENTS d "
+ "WHERE j.JOB_ID = e.JOB_ID "
+ " AND d.DEPARTMENT_ID = e.DEPARTMENT_ID"
+ " AND j.JOB_ID = "+job_id_combo.getSelectedItem().toString()+" AND e.DEPARTMENT_ID = "+dept_id_combo.getSelectedItem().toString()
+ " AND HIRE_DATE BETWEEN TO_CHAR ('"+date1+"', 'dd/MM/yyyy') AND TO_CHAR('"+date2+"', 'dd/MM/yyyy')"
+ " AND SALARY > "+salary_field.getText());
while(Rs.next()){
dtm.addRow(new Object[]{Rs.getString("LAST_NAME"), Rs.getString("FIRST_NAME"),
Rs.getString("JOB_TITLE"), Rs.getString("DEPARTMENT_NAME"), Rs.getInt("SALARY")});
}
Con.close();
St.close();
Rs.close();
}catch(Exception ex){
System.out.println(ex.toString());
}
}
public void reset_form(){
job_id_combo.setSelectedIndex(0);
dept_id_combo.setSelectedIndex(0);
salary_field.setText("");
}
此错误表示您的查询有问题。打字错误、不正确的引号、不正确的大写字母。在发布时考虑以下事项:1)发布最小问题2)只发布有问题的代码)。另外,你的截图显示了一些不同的东西,你的问题显示了一些不同的东西。这与jDateChooser无关,因为问题出在AC_MGR上。在发布之前,请先了解您的问题。”