Open Database Connections

I've ported some code over from LabVIEW7.1 to 8.6 which updates a table in a MYSQL database. The problem is that the new code leaves a database connection open after execution (while the 7.1 code does not). I would like to know if anyone has seen this behavior and if they know a fix, and if not, how would they go about debugging this problem.
I am using the MYSQL ODBC connector, version 5.1.
Some observations:
1. This vi is part of a TestStand 4.2 sequence, and the sequence writes results at the end of testing using TestStand's built in functionality to do this. What's notable is that unlike the vi, the database connection used to write the results is closed properly.
2. I've used the "trace" tool in windows ODBC panel but the information is overwhelming large, cryptic and doesn't contain recognizable strings. To reduce the size of the file I tried to start and stop it so that it was tracing only during the execution of the vi.
This didn't work - the tool did not record any information.
3. Stepping through the vi...
a. The database connection problem does not appear.
b. The error cluster is always empty indicating no errors have ocurred.
4. No errors happen during normal execution.
5. I've added delays of 5 seconds between some of the database vi calls and still the database connection is left open.
The vi that's causing the problem is attached.
Thanks in advance.
Attachments:
Read_Write Cal Data For Badger.vi ‏36 KB

You have a clean error in the middle, but i dont see how that should cause this. I reacted a little to the Select query using double quotes instead of single ones, NID="***"; instead of NID='***';
Might that be a reason?
Unpacking that sequence made it easier to read, i might add.
/Y
LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV

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Unable to open database connection after applicaiton is running for several days.

Has anyone experienced a similar error to this:
After about 3 days of use our application starts to report errors opening
the database connection. By that time we've had thousands of transactions
happen. Oracle is only showing a few open connections to our iAS host so
the error seems to indicate the connection pool. I'm configured for 64
connections (the default). We are using the Oracle native driver on iAS
SP3, Solaris.
The iAS ksvradmin monitor gives errors when trying to see how many open
connections it has (verified bug in SP3), so I can't get any info from iAS
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Thanks in advance,
Rodger Ball
Sr. Engineer
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iAS6 SP3 and earlier cannot detect dead connections. If connections become
stale, iAS does not detect this and will hand out these stale connections.
I don't know enough about your problem, but you can check for this.
hope this helps,
-James
"Rodger Ball" <[email protected]> wrote in message
news:9suucb$[email protected]..
Has anyone experienced a similar error to this:
After about 3 days of use our application starts to report errors opening
the database connection. By that time we've had thousands of transactions
happen. Oracle is only showing a few open connections to our iAS host so
the error seems to indicate the connection pool. I'm configured for 64
connections (the default). We are using the Oracle native driver on iAS
SP3, Solaris.
The iAS ksvradmin monitor gives errors when trying to see how many open
connections it has (verified bug in SP3), so I can't get any info from iAS
on the connection pool.
Thanks in advance,
Rodger Ball
Sr. Engineer
Business Wire

Serialization of an Object containing an opened database connection

Hi everyone,
My question is simple:
If you serialize an object containing an active databse connection, will it be de-serialized with that connection active and ready to use?

First of all, lets look at the purpose. what is that
making you write an object which hold the Connection
object to a network or to the file.
First check the condition. The conditions for
serialization are
1) Connection object should not be declared as
transiant.
2) And it should not be as static.
It the above conditions are meet then the it is
serializable.
Now the obejct holding the connection object is
written to the file or over the n/w.
Reading
Case 1 ) You read from the file at the server end no
issues. You can reconstruct the Connection object and
use it.
case 2) If you are writing to the n/w , your client
is some where in Aus and the java server the db
server are in US. Java Server being public and db
server being local to the Java Server , how you
would use the connection object to execute the querys
on that DB.
Think about this :).Hi,
Are n't you missing the whole point here? What you've said above is valid , of course, but then your readObject/writeObject methods would take care of restoring the connection object (from wherever) if such an implementation is taken up. IMHO, such an implementation is not practical in the first place, and if it's required in your project, it's bad design.
Regards
Hrishikesh

Failed to open database connections

Hi all,
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Open and close database connection jsp page

hi there, i wanna know about how to open database connection to Mysql at the beginning of the page and close the connection at the end of the page. The jsp page contain all processing code.
plz help me...thx thx

<html>
<head>
<basefont face="Arial">
</head>
<body>
<%@ page language="java" import="java.sql.*" %>
<%!
// define variables
String id;
String firstName;
String lastName;
// define database parameters, change this according to your needs
String host="localhost";
String user="root";
String pass="";
String db="test";
String conn;
%>
<table border="1" cellspacing="1" cellpadding="5">
<tr>
<td><b>id</b></td>
<td><b>first name</b></td>
<td><b>last name</b></td>
</tr>
<%
Class.forName("org.gjt.mm.mysql.Driver");
// create connection string
conn = "jdbc:mysql://" + host + "/" + db + "?user=" + user
+ "&password=" + pass;
// pass database parameters to JDBC driver
Connection Conn = DriverManager.getConnection(conn);
// query statement
Statement SQLStatement = Conn.createStatement();
// generate query
// change this query according to your needs
String Query = "SELECT id, firstname, lastname FROM abook";
// get result
ResultSet SQLResult = SQLStatement.executeQuery(Query);
while(SQLResult.next())
   id = SQLResult.getString("id");
   firstName = SQLResult.getString("firstname");
   lastName = SQLResult.getString("lastname");
        out.println("<tr><td>" + id + "</td><td>" +
     firstName + "</td><td>" + lastName + "</td></tr>");
// close connection
SQLResult.close();
SQLStatement.close();
Conn.close();
%>
</table>
</body>
</html>hi :-)
i've got that on the net as part of the tutorial on jsp (long long time ago)
you just have to be resourceful in finding solutions :-)
try google :-) there are lot's of tutorial available in there ;-)
goodluck ;-)
regards,

Tomcat JDBC Realm Database Connection Error

Hello all,
I am trying to edit the server.xml file on Tomcat so I can use the JDBC Realm instead of the MemoryRealm. Hence, I will be able to read users, passwords and roles from a relational database instead of from the tomcat-users.xml.
I have tried following all the guides on the net I can find, my server.xml looks as follows (after making changes to allow it to use JDBC realm). The only problem is, when I try to run the application the server outputs the following: (after all of these errors have been kicked up a pop-up box then appears titled "Tomcat Manager Application", it asks for a User Name and Password. I have tried the standard user name of "ide" and the password next to it in tomcat-users.xml but it won't accept it. (I am using the netbeans IDE)).
Please could someone suggest any ideas of how I can get the server.xml to work with JDBC realm?
Using CATALINA_BASE:   C:\Documents and Settings\Administrator\.netbeans\5.0beta\jakarta-tomcat-5.5.7_base
Using CATALINA_HOME:   C:\Program Files\netbeans-5.0beta\enterprise2\jakarta-tomcat-5.5.7
Using CATALINA_TMPDIR: C:\Documents and Settings\Administrator\.netbeans\5.0beta\jakarta-tomcat-5.5.7_base\temp
Using JAVA_HOME:       C:\j2sdk1.4.2_08
Created MBeanServer with ID: 1f934ad:107444b1d2b:-8000:ravinder-rdnzoa:1
31-Oct-2005 01:29:33 org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8084
31-Oct-2005 01:29:34 org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8443
31-Oct-2005 01:29:34 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2174 ms
31-Oct-2005 01:29:34 org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
31-Oct-2005 01:29:34 org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.7
31-Oct-2005 01:29:34 org.apache.catalina.realm.JDBCRealm start
SEVERE: Exception opening database connection
java.sql.SQLException: org.gjt.mm.mysql.Driver
        at org.apache.catalina.realm.JDBCRealm.open(JDBCRealm.java:646)
        at org.apache.catalina.realm.JDBCRealm.start(JDBCRealm.java:720)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1003)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:440)
        at org.apache.catalina.core.StandardService.start(StandardService.java:450)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
31-Oct-2005 01:29:34 org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
31-Oct-2005 01:29:36 org.apache.catalina.startup.ContextConfig validateSecurityRoles
INFO: WARNING: Security role name IBM used in an <auth-constraint> without being defined in a <security-role>
31-Oct-2005 01:29:36 org.apache.catalina.startup.ContextConfig validateSecurityRoles
INFO: WARNING: Security role name Auditor used in an <auth-constraint> without being defined in a <security-role>
31-Oct-2005 01:29:37 org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
INFO: Tiles definition factory loaded for module ''.
31-Oct-2005 01:29:37 org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validator-rules.xml'
31-Oct-2005 01:29:37 org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validation.xml'
31-Oct-2005 01:29:38 org.apache.catalina.startup.ContextConfig validateSecurityRoles
INFO: WARNING: Security role name IBM used in an <auth-constraint> without being defined in a <security-role>
31-Oct-2005 01:29:38 org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
INFO: Tiles definition factory loaded for module ''.
31-Oct-2005 01:29:38 org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validator-rules.xml'
31-Oct-2005 01:29:38 org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validation.xml'
31-Oct-2005 01:29:39 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8084
31-Oct-2005 01:29:39 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8443
31-Oct-2005 01:29:40 org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening on /0.0.0.0:8009
31-Oct-2005 01:29:40 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/60 config=null
31-Oct-2005 01:29:40 org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
31-Oct-2005 01:29:40 org.apache.catalina.startup.Catalina start
INFO: Server startup in 5738 ms
31-Oct-2005 01:29:40 org.apache.catalina.realm.JDBCRealm authenticate
SEVERE: Exception performing authentication
java.sql.SQLException: org.gjt.mm.mysql.Driver
        at org.apache.catalina.realm.JDBCRealm.open(JDBCRealm.java:646)
        at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java:344)
        at org.apache.catalina.authenticator.BasicAuthenticator.authenticate(BasicAuthenticator.java:181)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:446)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:534)
31-Oct-2005 01:29:40 org.apache.catalina.realm.JDBCRealm authenticate
SEVERE: Exception performing authentication
java.sql.SQLException: org.gjt.mm.mysql.Driver
        at org.apache.catalina.realm.JDBCRealm.open(JDBCRealm.java:646)
        at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java:344)
        at org.apache.catalina.authenticator.BasicAuthenticator.authenticate(BasicAuthenticator.java:181)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:446)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:534)The server.xml looks as follows:
<?xml version="1.0" encoding="UTF-8"?>



<Server port="8025" shutdown="SHUTDOWN">
    
    <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"/>
    <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
    <Listener className="org.apache.catalina.storeconfig.StoreConfigLifecycleListener"/>
    
    <GlobalNamingResources>
        
        <Environment name="simpleValue" type="java.lang.Integer" value="30"/>
        
   
    </GlobalNamingResources>
    
    
    <Service name="Catalina">
        
        
        <Connector port="8084" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="utf-8"/>
        
        
        
        <Connector port="8443"
        maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
        enableLookups="false" disableUploadTimeout="true"
        acceptCount="100" scheme="https" secure="true"
        clientAuth="false" sslProtocol="TLS" />
        
        <Connector port="8009" enableLookups="false" redirectPort="8443" protocol="AJP/1.3"/>
        
        
        
        
        
        
        <Engine name="Catalina" defaultHost="localhost">
            
            
            
            
            
            
            
            
            <Realm className="org.apache.catalina.realm.JDBCRealm"
            driverName="org.gjt.mm.mysql.Driver"
            connectionURL="jdbc:mysql://localhost:3306/tomcatusers"
            connectionName="root" connectionPassword="sikhism1"
            userTable="users" userNameCol="user_name" userCredCol="user_pass"
            userRoleTable="user_roles" roleNameCol="role_name" />
            
            
            
            <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="false" xmlValidation="false" xmlNamespaceAware="false">
                
                
                
                
                
                
                
                
                
                
                
            </Host>
        </Engine>
    </Service>
</Server>Many thanks, and apologies for "dumping" all of the code here.

So looking through the java api docs, I found that the tcUtilJDBCOperations has a connect string for the database. Below is the info it outlines. The questions I have it this. How do you specify the psdriver and URL along with do I need to do this as a persistent instance then add my selectstatement as a part of this or can I just specify this and the select statement will use this connection? Any help you can give would be appreciated.
tcUtilJDBCOperations
public tcUtilJDBCOperations(java.lang.String psDriver,
java.lang.String psUrl,
java.lang.String psUsername,
java.lang.String psPassword)Contructor that sets the parameters for connecting to a database
Parameters:
psDriver - The class name of the jdbc driver
psUrl - The URL of the database
psUsername - The username required to access the database
psPassword - The password for the above username
Nick

How I can close Database connection?

I am using the following to open Database connections in Java class.
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("URL","user","password");
But I do not know how I can have it closed.
This cause an SQL error: Maximum open cursors exceeded.

Thanks so much. Your explanation is so clear.
Here is the whole code. Thanks for your help.
package xxx.xx.xxx;
import java.io.*;
import java.sql.*;
import java.util.*;
public class Format_BaseTable {
Connection con = null;
Statement stmt = null;
Statement stmt1 = null;
ResultSet rs = null;
ResultSet rs1 = null;
PreparedStatement ps = null;
PreparedStatement ps1 = null;
public Format_BaseTable() {}
public static String valueOf(String oldStr)
StringTokenizer st = new StringTokenizer(oldStr.trim(), "-");
char zero = '0';
String dem_zero = ".0";
String newStr = "";
while(st.hasMoreTokens()) {
String degree = st.nextToken();
String minute = st.nextToken();
String second = st.nextToken();
if (minute.length() == 1) {
minute = zero + minute;
if (second.length() == 1) {
second = zero + second;
if (second.length() == 2) {
second = second + dem_zero;
if (second.length() == 3) {
second = zero + second;
if (second.length() == 5) {
double d = Double.parseDouble(second);
second = String.valueOf(Math.round(d));
newStr = degree + " " + minute + " " + second;
return newStr;
public static double feetToMeter(int ft)
double mt = ft * 0.305;
return mt;
public void doConvert() {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("url","user","password");
stmt = con.createStatement();
stmt1 = con.createStatement();
rs = stmt.executeQuery("SELECT cla_seqnum, str_leased, nad27_lat, nad27_lon, nad83_lat, nad83_lon, ge_ft, sh_ft, osh_ft, ov_faa_approv_ft, ant_tip_ft, ant_ctr_line_ft FROM cl_antenna_base WHERE application_user_id = 'SQL LOADER'");
rs1 = stmt1.executeQuery("SELECT mwa_seqnum, nad27_lat, nad27_lon, nad83_lat, nad83_lon, ge_ft, osh_ft, cl_ft FROM mw_antenna_base WHERE application_user_id = 'SQL LOADER'");
int cl_seqnum = 0;
String leased = "";
String ownership = "";
String str_code = "";
String cl_nad27_lat = "";
String cl_nad27_lon = "";
String cl_nad83_lat = "";
String cl_nad83_lon = "";
int cl_ge_ft = 0;
int cl_ge_mt = 0;
int cl_sh_ft = 0;
int cl_sh_mt = 0;
int cl_osh_ft = 0;
int cl_osh_mt = 0;
int cl_ov_faa_approv_ft = 0;
int cl_ov_faa_approv_mt = 0;
int cl_ant_tip_ft = 0;
int cl_ant_tip_mt = 0;
int cl_ant_ctr_line_ft = 0;
int cl_ant_ctr_line_mt = 0;
int i = 1;
int mw_seqnum = 0;
String mw_nad27_lat = "";
String mw_nad27_lon = "";
String mw_nad83_lat = "";
String mw_nad83_lon = "";
int mw_ge_ft = 0;
int mw_ge_mt = 0;
int mw_osh_ft = 0;
int mw_osh_mt = 0;
int mw_cl_ft = 0;
int mw_cl_mt = 0;
int j = 1;
while(rs.next())                    // For Cellular/PCS
System.out.println("\n\nCellular/PCS Record #" + i);
cl_seqnum = rs.getInt("cla_seqnum");
System.out.println("cla_seqnum =" + cl_seqnum);
if (rs.getString("str_leased") != null) {
leased = rs.getString("str_leased");
} else {
leased = "";
     StringTokenizer st = new StringTokenizer(leased, "/");
while(st.hasMoreTokens()) {
     ownership = st.nextToken();
     str_code = st.nextToken();
if (rs.getString("nad27_lat") != null) {
cl_nad27_lat = valueOf(rs.getString("nad27_lat"));
} else {
cl_nad27_lat = "";
     System.out.println("cl_nad27_lat = " + cl_nad27_lat);
if (rs.getString("nad27_lon") != null) {
cl_nad27_lon = valueOf(rs.getString("nad27_lon"));
} else {
cl_nad27_lon = "";
System.out.println("cl_nad27_lon = " + cl_nad27_lon);
if (rs.getString("nad83_lat") != null) {
cl_nad83_lat = valueOf(rs.getString("nad83_lat"));
} else {
cl_nad83_lat = "";
System.out.println("cl_nad83_lat = " + cl_nad83_lat);
if (rs.getString("nad83_lon") != null) {
cl_nad83_lon = valueOf(rs.getString("nad83_lon"));
} else {
cl_nad83_lon = "";
System.out.println("cl_nad83_lon = " + cl_nad83_lon);
cl_ge_mt = (int)feetToMeter(rs.getInt("ge_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_ge_mt = " + cl_ge_mt);
cl_sh_mt = (int)feetToMeter(rs.getInt("sh_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_sh_mt = " + cl_sh_mt);
cl_osh_mt = (int)feetToMeter(rs.getInt("osh_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_osh_mt = " + cl_osh_mt);
cl_ov_faa_approv_mt = (int)feetToMeter(rs.getInt("ov_faa_approv_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_ov_faa_approv_mt = " + cl_ov_faa_approv_mt);
cl_ant_tip_mt = (int)feetToMeter(rs.getInt("ant_tip_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_ant_tip_mt = " + cl_ant_tip_mt);
cl_ant_ctr_line_mt = (int)feetToMeter(rs.getInt("ant_ctr_line_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&cl_ant_ctr_line_mt = " + cl_ant_ctr_line_mt);
     // update NAD27 and NAD83 data in CL_ANTENNA table
ps = con.prepareStatement("UPDATE cl_antenna_base SET str_leased = ?, structure_code = ?, nad27_lat = ?, nad27_lon =?, nad83_lat = ?, nad83_lon = ?, ge_mt = ?, sh_mt = ?, osh_mt = ?, ov_faa_approv_mt = ?, ant_tip_mt = ?, ant_ctr_line_mt = ? WHERE cla_seqnum = " + cl_seqnum);
ps.setString(1, ownership);
ps.setString(2, str_code);
ps.setString(3, cl_nad27_lat);
ps.setString(4, cl_nad27_lon);
ps.setString(5, cl_nad83_lat);
ps.setString(6, cl_nad83_lon);
ps.setInt(7, cl_ge_mt);
ps.setInt(8, cl_sh_mt);
ps.setInt(9, cl_osh_mt);
ps.setInt(10, cl_ov_faa_approv_mt);
ps.setInt(11, cl_ant_tip_mt);
ps.setInt(12, cl_ant_ctr_line_mt);
     ps.executeUpdate();
     i++;
} // end of while
while(rs1.next())                    // For Microwave
System.out.println("\n\nMicrowave Record #" + j);
mw_seqnum = rs1.getInt("mwa_seqnum");
System.out.println("mw_seqnum =" + mw_seqnum);
if (rs1.getString("nad27_lat") != null) {
mw_nad27_lat = valueOf(rs1.getString("nad27_lat"));
} else {
mw_nad27_lat = "";
System.out.println("mw_nad27_lat = " + mw_nad27_lat);
if (rs1.getString("nad27_lon") != null) {
mw_nad27_lon = valueOf(rs1.getString("nad27_lon"));
} else {
mw_nad27_lon = "";
System.out.println("mw_nad27_lon = " + mw_nad27_lon);
if (rs1.getString("nad83_lat") != null) {
mw_nad83_lat = valueOf(rs1.getString("nad83_lat"));
} else {
mw_nad83_lat = "";
System.out.println("mw_nad83_lat = " + mw_nad83_lat);
if (rs1.getString("nad83_lon") != null) {
mw_nad83_lon = valueOf(rs1.getString("nad83_lon"));
} else {
mw_nad83_lon = "";
System.out.println("mw_nad83_lon = " + mw_nad83_lon);
mw_ge_mt = (int)feetToMeter(rs1.getInt("ge_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&mw_ge_mt = " + mw_ge_mt);
mw_osh_mt = (int)feetToMeter(rs1.getInt("osh_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&mw_osh_mt = " + mw_osh_mt);
mw_cl_mt = (int)feetToMeter(rs1.getInt("cl_ft"));
System.out.println("&&&&&&&&&&&&&&&&&&&mw_cl_mt = " + mw_cl_mt);
// update NAD27 and NAD83 data in MW_ANTENNA table
ps1 = con.prepareStatement("UPDATE mw_antenna_base SET nad27_lat = ?, nad27_lon =?, nad83_lat = ?, nad83_lon = ?, ge_mt = ?, osh_mt = ?, cl_mt = ? WHERE mwa_seqnum = " + mw_seqnum);
ps1.setString(1, mw_nad27_lat);
ps1.setString(2, mw_nad27_lon);
ps1.setString(3, mw_nad83_lat);
ps1.setString(4, mw_nad83_lon);
ps1.setInt(5, mw_ge_mt);
ps1.setInt(6, mw_osh_mt);
ps1.setInt(7, mw_cl_mt);
ps1.executeUpdate();
j++;
} // end of while
} catch(SQLException se) {
     System.out.println("SQL Exc" + se.getMessage());
se.printStackTrace();
} catch(Exception e) {
System.out.println(" Exc" + e.getMessage());
e.printStackTrace();
finally
          try
               rs.close();
               stmt.close();
               dbConn.freeConnection("system", conn);
               conn.close();
          } catch (SQLException e)
} // end of doConvert
public static void main(String args[]) {
Format_BaseTable old_nad = new Format_BaseTable();
old_nad.doConvert();
} // end of class

Jsp and database connection using bean

* I want create a bean to handle database connectivity.The
          <jsp:usebean> tag uses
          no argument constructor ..so I cannot pass the userid and password to
          the constructor.
          So how can I create a database connection when the user_id and password
          will be a part of parameter ?
          * Now I'm opening database connection in the jsp scriplets. Everytime I
          refresh the
          jsp page a new connection is created ? Is it not going to choke the
          database ? I cannot use connection pool because every user logs in with
          different userid.
          Thanks


You can pass your arguments in this way:
          <jsp:usebean id="myBean" scope="page"/>
          <jsp:setProperty name="myBean" property="userId", value=<%= user_id%>/>
          <jsp:setProperty name="myBean" property="password", value=<%=
          user_password%>/>
          of course, in your bean class, you should create two setter methods,
          setUserId and setPassword.
          Hopefully, this will help you.
          sonia WEN
          Chiranjib Misra wrote:
          > * I want create a bean to handle database connectivity.The
          > <jsp:usebean> tag uses
          > no argument constructor ..so I cannot pass the userid and password to
          > the constructor.
          > So how can I create a database connection when the user_id and password
          > will be a part of parameter ?
          >
          > * Now I'm opening database connection in the jsp scriplets. Everytime I
          > refresh the
          > jsp page a new connection is created ? Is it not going to choke the
          > database ? I cannot use connection pool because every user logs in with
          > different userid.
          >
          > Thanks

Database connection error - Blackberry 9300 simulator

Hi, I'm unable to open database connection in Blackberry 9300 simulator which runs on 5.0.0.977 Device Software. Could someone please let us if I can open the database connection on this device. Also I'm unable to run widget in Blackberry simulator 8900 (device software 4.6.1) As I'm new to widget development, please provide me the details on my questions. Error - net.rim.device.apps.internal.browser.gears.Database. Thanks Raghu .

You know what, upon thinking about this again, i have the exact same problem sometimes!
This i believe is what is causing your problems. When you go out of range of the wifi, for some reason apps like whatsapp seem to switch over to the service providers data scheme and if you have no credit or I would assume as in your case it does not work, the whatsapp does not switch back over to the wifi when it comes into range again.
I have had issues like this before with my 9300 and to solve it try to do this. Turn off all network radios on the phone. mobile and wifi. then turn on wifi only then do a battery pull on the device. When it turns on again, wifi will be on and things should work... Well atleast that is what happens for me. You can then turn on the mobile network again.
You could also try just closing the problematic application, disabling all of the network radios then turning on wifi only and try out the application. I know the last option I provided works 100% of the time for me though and I really think if you stay close to the wifi router for more than an hour or two you are not going to have any problems at all.

Failed to open the connection - database vendor code 17

I'm upgrading a VB.net Windows Forms application from 1.1 to 4.0. In the reporting form, the list of reports you can choose are pulled from a folder where the .rpt files reside. Once the user chooses a report and executes it, vb code populates the current database connection information and displays the report in the report viewer control.
The following things are true:
- Version 1.1 works on my systems and my customers systems
- The code has not been changed, except that it now targets .Net 4.0 instead of 1.1
- The exact same .rpt files are being used
- Version 4.0 connects to the same database my customer is using, and I can run the reports just fine from here.
- Version 4.0 is able to connect to the database just fine from my customers systems (using the same connection information provided to the report)
- My customer installed this: http://downloads.businessobjects.com/akdlm/cr4vs2010/CRforVS_redist_install_32bit_13_0_2.zip
The only problem is that my customer encounters this error when trying to run any report from his systems:
Failed to open the connection.
Details: Database Vendor Code: 17
Failed to open the connection.
Orders.BOL.TaskDetail {393C9017-0ED1-4E1E-8824-E222F4B9D14C}.rpt
Details: Database Vendor Code: 17
I read all of the articles I could find, and they either don't describe this exact situation, or there is insufficient information for troubleshooting this issue. Are there steps that I've missed to make Crystal Reports for VS2010 work on my customer's systems?
Your help is appreciated,
Mark

Hi Mark,
More information required -
- Does this happen with all reports or few?
- What is the connection type used for the report to connect to the database (OLEDB,ODBC etc)
- Are you changing the database at runtime?
few things you could check
- Check if the database is accaessible from the client machine with proper permissions / rights.
- If its an ODBC connection check if the DSN with same name is created on the client machine.
- Check the driver / provided used by the report to connect to the DB, verify that the same is installed on the client machine. (SQL NAtive client, SQL Server etc)
Also take a look at below articles discussing the simillar issue.
[CR for VS2010: Failed to Open Connection [Database Vendor Code: 17 ]|CR for VS2010: Failed to Open Connection [Database Vendor Code: 17 ]]
[1474461 - Unknown Database Connector Error when connecting to a Dataset in a VS .NET application |http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333433373334333433363331%7D.do]
Hope this helps,
- Bhushan.

Failed to open the connection. Details: [Database Vendor Code: 53 ]

I'm upgrading one of our applications from Visual Studio 2005 to 2010. In the process I'm also switching our reports to run using Stored Procedures instead of Tables/Views. Everything runs fine on development machines after all the migration work. On the server however, it does not work. And I am getting the error message ""
Server is Windows 2003 Server 32 bit. And yes, I have installed the latest runtimes version 13.0.2000.0 on the server. There have been no other changes on the server other than to switch the target framework on the website in question from .net 2 to .net 4, and then to modify the web.config file to remove references to the older Crystal Reports and replace with references to the newer version.
I've seen many other threads on this "failed to open the connection" errors but none of them are my problem except there is one post that remains unanswered where someone had the same Database Vendor Code 53. I don't know what that error means, spent a considerable amount of time researching that before asking this question.
Lastly, it appears that this error only happens when the report is pulling data from a Stored Procedure rather than Tables/Views. If I re-copy the previous reports, they still work.
The ODBC drivers haven't changed, nor should they. They are fully up to date on that server machine.
I can't think of anything else that would be indicative of anything other than this is a bug. Here is the error text as it shows up in the event log:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 12/7/2011 3:49:50 PM
Event time (UTC): 12/7/2011 11:49:50 PM
Event ID: 38ce5b5487984e8aa8d2b84493d859a8
Event sequence: 17
Event occurrence: 1
Event detail code: 0
Application information:
    Application domain: /LM/W3SVC/739252194/Root-1-129677751941252500
    Trust level: Full
    Application Virtual Path: /
    Application Path: D:\Websites\ACE5\Clients\TST\
    Machine name: ACE1
Process information:
    Process ID: 5436
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE
Exception information:
    Exception type: InternalException
    Exception message: Failed to open the connection.
Failed to open the connection.
Details: [Database Vendor Code: 53 ]
Failed to open the connection.
Details: [Database Vendor Code: 53 ]
Failed to open the connection.
PackSlipTST0 {638463B4-2196-492A-BD6E-9D82CB1862D5}.rpt
   at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
   at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
   at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToStream(ExportOptions options)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportOptions options, HttpResponse response, Boolean asAttachment, String attachmentName)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportFormatType formatType, HttpResponse response, Boolean asAttachment, String attachmentName)
   at Distribution_PackingSlips_default.ExportPackingSlips(String CrystalReportPath, Boolean UseStoredProcedure)
   at Distribution_PackingSlips_default.Page_Load(Object sender, EventArgs e)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Failed to open the connection.
Failed to open the connection.
Details: [Database Vendor Code: 53 ]
Failed to open the connection.
Details: [Database Vendor Code: 53 ]
Failed to open the connection.
PackSlipTST0 {638463B4-2196-492A-BD6E-9D82CB1862D5}.rpt
   at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext)
   at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)

Lots of great info here, except for the database; MS SQL? Oracle? Etc?
Database Vendor Code 53 is an error code that the CR engine simply passes straight from the database it's self. E.g.; look at your database error code and you should be able to find a verbose description of the error.
As a test, what happens if you add the report to your project and run it in the CR design part of the .NET IDE?
- A quick google search of Error 53 (for MS SQL - an assumption) comes up with a number of good hits. E.g.;
http://social.msdn.microsoft.com/Forums/en-AU/sqlgetstarted/thread/27684811-1a59-4273-b7ed-3cc990b4f20a
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]
Edited by: Ludek Uher on Dec 8, 2011 6:31 AM

Failed to open the connection. Details: [Database Vendor Code: 12154].

I have installed Crystal reports server 2008 VI on a Windows 2008 64bit OS. I have added SQL server and Oracle reports through CMC. I then installed Oracle 10g client 32bit on the server and created and tested the required DSNs using ODBC 32bit. All the testings are successfull.
Now when I try to run my Oracle report through CMC it prompts for the parameters and when I enter them and click ok, gives me the following error:
Failed to open the connection. Details: [Database Vendor Code: 12154].
I have the same exact setup on a different server which has a 32 bit windows 2008 server OS and could run the same reports through CMC.
Is there away to fix this in the 64 bit OS?
I did a yahoo search and someone had a similar problem with Crystal RAS and Oracle.
And there is mentions that this is an issue with 32 bit ODBC drivers on 64bit wondows OS.The parentheses in the default file location, C:\Program Files (x86), causes problems with the ODBC driver and the workarouns in re-installing Crystal RAS on a different folder.
Full description is at (http://www.tririga.info/)
Is this the case with Crystal report server 2008 VI? I already got users using the InfoView to run SQL reports and doing this will have to put the application offline atlease for a say.
Any help is greatly appreciated.

Vasana,
Resolution: Failed to Open the Connection.
First:
If the Crystal Report is using 32-bit version of Microsoft ODBC then the Window 2008 server must also have 32-bit version of Microsoft ODBC. The 32- bit version of Odbcad32.exe is located in the %systemdrive%\Windows\SysWoW64 folder.
On the Windows 2008 server, execute Odbcad32.exe by clicking start and run and entering the following: C:\Window\SysWow64\ODBC32.exe.
Then:
The Windows 2008 server ODBC Data Source Administrator must have the same System Data Source Server and Database Names that is used to run the Crystal Report.
e.g. Crystal Report points to server ABC and database EFG (ABC_efg); then the ODBC connections on the Windows 2008 Server must also point to the same server ABC and database EFG (abc_efg) listed.

Failed to open the connection.Details: [Database Vendor Code: 17 ]

We have too many reports designed by Crystal Reports XI Release 2 a time ago reports are old but we are calling them in asp.net 4.0 and connection through ODBC Data Sources (Driver SQL SERVER)
but when we refresh the report we are facing this issue....
Failed to open the connection.
Details: [Database Vendor Code: 17 ] Failed to open the connection.
AP Outstanding Check Run Detailed Ver 2 {CF3B13A2-F259-4B1D-ACC9-BF78F44D4AA5}.rpt
Details: [Database Vendor Code: 17 ]
here is the code to set ReportLoginInfo
CrystalDecisions.Shared.TableLogOnInfo logonInfo = new CrystalDecisions.Shared.TableLogOnInfo();
            string myTableLocation;
            foreach (CrystalDecisions.CrystalReports.Engine.Table myTable in rptDoc.Database.Tables)
                myTableLocation = myTable.Name;
                logonInfo = myTable.LogOnInfo;
                logonInfo.ConnectionInfo.AllowCustomConnection = true;
                logonInfo.ConnectionInfo.ServerName = ServerName; // dnsname
                logonInfo.ConnectionInfo.DatabaseName = DatabaseName;
                if (!(string.IsNullOrEmpty(UserID) || string.IsNullOrEmpty(Password)))
                    logonInfo.ConnectionInfo.UserID = UserID;
                    logonInfo.ConnectionInfo.Password = Password;
                    logonInfo.ConnectionInfo.IntegratedSecurity = false;
                logonInfo.ConnectionInfo.Type = CrystalDecisions.Shared.ConnectionInfoType.SQL;
                myTable.ApplyLogOnInfo(logonInfo);
                myTable.Location = DatabaseName + ".dbo." + myTableLocation;
                bool success = myTable.TestConnectivity();
Edited by: zeshansadiq on Nov 4, 2011 3:49 PM

resolved by me itself.
Do the following steps:
1. Open the report in the CR XI designer.
2. Select Database -> Set Datasource Location.
3. Set Datasource Location window will appear and in the replace with section connect to the database and replace these tables with the tables in the current datasource by clicking the update button.
4. After updating close the Set Datasource Location window.
5. Go to 'Database menu' and Click 'Verify Database' and click on u2019OKu2019.
6. Preview the report and the save the report.

I run Dev 6i on Windows 2008 R2 64-bit,the forms are working fine after connection to the database but the reports continue to request for username, password and database connection string every time i try to open a report.

I receive REP-0501: Unable to connect to specified database. I run developer 6i application on windows 2008 r2. I have applied the nn60.dll and nnb60.dll files to the \BIN directory. The forms are working fine. The reports will only display after the correct user id (username, password and database connection string) is supplied. This is happening to all attempts to open already complied form. Pls, help.

If you are connecting to an Oracle 11g database, remember that by default the passwords are case sensitive. To disable that, run
ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON = FALSE;

Database connection dailog opens with missing fields

Greetings all,
I have one user who has a couple reports that do not display all the fields in the database connection dialog box when she attempts to refresh the data in a report.
Normally this dialog box opens with the Datasource, UserID (of the last person who saved data with the report) and Database prefilled, so only the Password needs to be completed or the UserID changed.
For her (and this is only happening on a couple reports), only the Datasource text box is visible. The datasource is correctly filled in but in order to see the other fields, she needs to click the next button and then click back. Then all three fields - UserID, Password and Database need to be entered.
This only started in the past couple months and so far is only occuring with 2 reports, both new. Other new reports are acting normally.
We are using Crystal Reports XI with the latest service packs. Our reports are in a shared folder on the network. So far I have not been able to duplicate this behavior on anyone else' machine.
Any idea's on what might be causing this or how to correct it?
TIA,
Bob

I would check that persons database client and/or version of MDAC. May also be a permission issue on tables.

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