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Kagula
2009-11-17
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Java My SQL
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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class CMySQL {
private Connection conn;
public CMySQL(String sWhere,String sAccount,String sPWD)
{
connect(sWhere,sAccount,sPWD);
}
public void finalize()
{
shutdown();
}
private void connect(String sWhere,String sAccount,String sPWD)
{
try
{
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection(sWhere,sAccount,sPWD);
}catch(Exception ex)
{
ex.printStackTrace();
}
}
public boolean executeUpdate(String strSQL)
{
boolean bR=true;
try{
Statement stmt = conn.createStatement();
stmt.executeUpdate(strSQL);
}catch(SQLException ex)
{
ex.printStackTrace();
bR=false;
}
return bR;
}
public List<Map<String,String>> executeQuery(String strSQL)
{
List<Map<String,String>> list=new ArrayList<Map<String,String>>();
ResultSet rs;
try{
Statement stmt = conn.createStatement();
rs = stmt.executeQuery(strSQL);
if(rs.next())
{
ResultSetMetaData rsm = rs.getMetaData();
List<String> colNames = new ArrayList<String>();
for(int i=1;i<=rsm.getColumnCount();i++)
colNames.add(rsm.getColumnName(i));
do{
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import java.awt.Image;
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import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
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SQL UNION Óï·¨
SELECT column_name(s) from table_name1
UNION
SELECT column_name(s) from tabl ......
YearCode:=yearof(Date);
MonthCode:=monthof(Date);
if MonthCode>9 then
FTime1:=inttostr(YearCode)+inttostr(MonthCode)
else
&nb ......