当我从内部连接的两个表（MDA_AUDIT和MESSAGE）的结果中选择列时，我得到一些错误。但是，同样的查询在SQL Developer界面中完美运行。
这是我在java中运行的查询：
return "select * from ( select a.*, rownum rnum from ("
+ " select MDA_AUDIT.REQUEST_ID, MDA_AUDIT.REQUEST_TYPE, MDA_AUDIT.REFERENCE_ID, MDA_AUDIT.MESSAGE, MESSAGE.STATUS, MESSAGE.ERROR_CODE,"
+ "MDA_AUDIT.MESSAGE_DATETIME, MESSAGE.CREATION_DATETIME, MESSAGE.LAST_MODIFIED_DATETIME, MESSAGE.RETURN_VALUE,MESSAGE.FAILURE_CODE,MESSAGE.REPLY_TO_QUEUE_NAME"
+ " from MESSAGE inner join MDA_AUDIT on MESSAGE.REQUEST_ID = MDA_AUDIT.REQUEST_ID where MDA_AUDIT.MESSAGE_DATETIME between '"+date1+"' and '"+date2+"') a where rownum <= %d )";
以下是错误：
[main] ERROR c.m.tools.report.OracleDataProvider - java.sql.SQLException: Invalid column name at oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:3665)
at oracle.jdbc.driver.OracleResultSetImpl.findColumn(OracleResultSetImpl.java:2717)
at oracle.jdbc.driver.ScrollableResultSet.findColumn(ScrollableResultSet.java:1866)
at oracle.jdbc.driver.OracleResultSet.getInt(OracleResultSet.java:434)
at com.morpho.tools.report.OracleDataProvider.getCsvLogs(OracleDataProvider.java:233)
at com.morpho.tools.report.OracleDataProvider.getFirstPage(OracleDataProvider.java:129)
at com.morpho.tools.report.LogExporter.main(LogExporter.java:122)
JDK版本= 1.8
以下是代码：
package com.morpho.tools.report;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class M<Final>
{
private static Logger LOG = LoggerFactory.getLogger(OracleDataProvider.class);
private SubscriptionInfo subscriptionInfo;
private Connection connection = null;
private PreparedStatement preparedStatement = null;
private int paginationSize = 100;
private int numOfRecords;
private String getQuery(String date1, String date2)
{
return "select * from ( select a.*, rownum rnum from ("
+ " select MDA_AUDIT.REQUEST_ID, MDA_AUDIT.REQUEST_TYPE, MDA_AUDIT.REFERENCE_ID, MDA_AUDIT.MESSAGE, MESSAGE.STATUS, MESSAGE.ERROR_CODE,"
+ "MDA_AUDIT.MESSAGE_DATETIME, MESSAGE.CREATION_DATETIME, MESSAGE.LAST_MODIFIED_DATETIME, MESSAGE.RETURN_VALUE,MESSAGE.FAILURE_CODE,MESSAGE.REPLY_TO_QUEUE_NAME"
+ " from MESSAGE inner join MDA_AUDIT on MESSAGE.REQUEST_ID = MDA_AUDIT.REQUEST_ID where MDA_AUDIT.MESSAGE_DATETIME between '"+date1+"' and '"+date2+"') a where rownum <= %d )";
}
private ResultSet getCandidatePin(String requestid)throws SQLException
{
ResultSet candidateSet = null;
try
{
final String query1 = "SELECT FIRST_DUPLICATE_REFID FROM IDENTIFY_DETAIL where request_id='"+ requestid+"'";
preparedStatement = connection.prepareStatement(query1,ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
candidateSet = preparedStatement.executeQuery();
}catch (Exception e) {
}
return candidateSet;
}
public void open() throws ClassNotFoundException, SQLException
{
Class.forName(subscriptionInfo.getDriver());
connection = DriverManager.getConnection(subscriptionInfo.getJdbcUrl(),"mda", "mda1234");
}
public boolean hasMorePages()
{
boolean hasMorePages = false;
numOfRecords = numOfRecords - paginationSize;
LOG.info("Number of records pending : " + numOfRecords);
if (numOfRecords > 0)
{
hasMorePages = true;
}
return hasMorePages;
}
private int getNumOfRecords() throws SQLException
{
ResultSet resultSet = null;
int num = 0;
try
{
final String query = "SELECT count(*) FROM message where MESSAGE_DATETIME between '26-JUN-13' and '27-JUN-13'";
preparedStatement = connection.prepareStatement(query,
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
resultSet = preparedStatement.executeQuery();
resultSet.first();
num = resultSet.getInt(1);
}
finally
{
if (null != resultSet)
{
resultSet.close();
}
}
return num;
}
private ResultSet getResultSet(final String query) throws SQLException
{
preparedStatement = connection.prepareStatement(query,
ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
final ResultSet resultSet = preparedStatement.executeQuery();
return resultSet;
}
public List<CsvLog> getFirstPage(final int paginationSize, String date1, String date2)
throws IOException
{
this.paginationSize = paginationSize;
List<CsvLog> csvLogs = new ArrayList<CsvLog>();
ResultSet resultSet = null;
try
{
numOfRecords = getNumOfRecords();
final String formattedQuery = String.format(getQuery(date1, date2),paginationSize, 1);
resultSet = getResultSet(formattedQuery);
csvLogs = getCsvLogs(resultSet);
}
catch (SQLException ex)
{
LOG.error(ExceptionUtils.getFullStackTrace(ex));
}
finally
{
if (null != resultSet)
{
try
{
resultSet.close();
}
catch (SQLException e)
{
LOG.warn(ExceptionUtils.getFullStackTrace(e));
}
}
}
return csvLogs;
}
public List<CsvLog> getNextPage(int startIndex, String date1, String date2) throws IOException
{
List<CsvLog> csvLogs = new ArrayList<CsvLog>();
ResultSet resultSet = null;
try
{
final String formattedQuery = String.format(getQuery(date1, date2), startIndex
+ paginationSize, startIndex + 1);
resultSet = getResultSet(formattedQuery);
csvLogs = getCsvLogs(resultSet);
}
catch (SQLException ex)
{
LOG.error(ExceptionUtils.getFullStackTrace(ex));
}
finally
{
if (null != resultSet)
{
try
{
resultSet.close();
}
catch (SQLException e)
{
LOG.warn(ExceptionUtils.getFullStackTrace(e));
}
}
}
return csvLogs;
}
private List<CsvLog> getCsvLogs(final ResultSet resultSet)throws IOException
{
List<CsvLog> csvLogs = new ArrayList<CsvLog>();
try
{
resultSet.first();
do
{
final CsvLog csvLog = new CsvLog();
final String requestId = resultSet.getString("REQUEST_ID");
String requestType = resultSet.getString("REQUEST_TYPE");
if (requestType.contentEquals("1"))
{
requestType="INSERT";
csvLog.setMatchingResult("null");
}
else if (requestType.contentEquals("2"))
{
requestType="IDENTIFY";
ResultSet GalleryPin= getCandidatePin(requestId);
//GalleryPin.next();
while(GalleryPin.next()){
String StringPin=GalleryPin.getString(1);
csvLog.setGalleryPin(StringPin);
csvLog.setMatchingResult("HIT");
csvLog.setNbCandidates(1);
csvLog.setSubtype("IDENTIFY_PIN");
}
if(!GalleryPin.first())
{
csvLog.setMatchingResult("NOHIT");
csvLog.setNbCandidates(0);
csvLog.setSubtype("IDENTIFY_PIN");
}
}
else if (requestType.contentEquals("3"))
{
requestType="VERIFY";
}
else if (requestType.contentEquals("4"))
{
requestType="DELETE";
}
final int result = resultSet.getInt("RETURN_VALUE");
final Timestamp messageTimestamp = resultSet.getTimestamp("MESSAGE_DATETIME");
final Timestamp beginTimestamp = resultSet.getTimestamp("CREATION_DATETIME");
final Timestamp endTimestamp = resultSet.getTimestamp("LAST_MODIFIED_DATETIME");
final String pin = resultSet.getString("REFERENCE_ID");
final int errorCode = resultSet.getInt("FAILURE_CODE");
final String messageClob = resultSet.getString("MESSAGE");
csvLog.setMessage(messageClob);
csvLog.setRequestId(requestId);
csvLog.setRequestType(requestType);
csvLog.setResult(result);
csvLog.setMessageTimestamp(messageTimestamp);
csvLog.setBeginTimestamp(beginTimestamp);
csvLog.setEndTimestamp(endTimestamp);
csvLog.setPin(pin);
csvLog.setErrorCode(errorCode);
csvLogs.add(csvLog);
}
while (resultSet.next());
}
catch (SQLException ex)
{
LOG.error(ExceptionUtils.getFullStackTrace(ex));
}
return csvLogs;
}
public SubscriptionInfo getSubscriptionInfo()
{
return subscriptionInfo;
}
public void setSubscriptionInfo(final SubscriptionInfo subscriptionInfo)
{
this.subscriptionInfo = subscriptionInfo;
}
public void closeQuitely()
{
if (null != preparedStatement)
{
try
{
preparedStatement.close();
}
catch (SQLException ex)
{
LOG.warn(ExceptionUtils.getFullStackTrace(ex));
}
}
if (null != connection)
{
try
{
connection.close();
}
catch (SQLException ex)
{
LOG.warn(ExceptionUtils.getFullStackTrace(ex));
}
}
}
}
答案 0 :(得分：0)
查询看起来很好;问题必须在您使用的代码中才能访问结果，您必须要求不存在的列。