MS Access queries different to Java SQL statements

Ok, i dont understand something:
My program is connected to a MSAccess datasource. The query in MSAccess is
SELECT *
FROM Food_Data
WHERE Description Like 'Cheese*';
...but this wont work with a Java SQl query. I have to use this instead:
String query = "SELECT * FROM Food_Data " +
"WHERE Description LIKE 'Cheese%'";
Surely java would just passes the string query to MSAccess. But no. Java needs '%' as the wildcard, and MSAccess needs '*' as the wildcard.
Can anyone please explain this to me?

Well % is the standard wildcard character for SQL as defined by the ANSI standard. MS Access just doesn't conform to this standard.
Having said that, I'm still kind of astonished that it doesn't work :-)
The JDBC driver should pass the statement "as is" to the underlying DBMS, but obviously the JDBC/ODBC bridge does some "quirking". But maybe it
s the ODBC datasource. I can see a "ExtendedAnsiSQL" setting in one of my Access ODBC settings, maybe that changes something.

Similar Messages

Java.beans.Statement & java.sql.Statement

My old code from jdk1.3.1 throws the ambiguous class thingie-mo-bob. Why did they implement the new java.beans.Statement, and is there anyway to make it default to the old java.sql.Statement without having to go through all the old code and add import java.sql.Statement. I have like 200 jsp files 'n it will take a loooong time!
Pete

There r two ways to do this.
(i) One is Implement the java.sql.Statement
like
package java.beans;
public interface Statement implements
java.sql.Statement {
}What? Are you suggesting he edit the source code for java.beans.Statement and make it implement java.sql.Statement?? I would most certainly not suggest that solution- beside violating the licensing agreement, it has troubling consequences since you are basically redefining the structure of a class in a way that makes no functional sense- that is, there is no reason for java.beans.Statement to implement methods like getConnection() and the other signatures of java.sql.Statement.
I'm not sure if I'm reading your response correctly or not, but I would definitely not refactor java.beans.Statement just to get this problem solved with out editing files ... ... since java.sql.Statement is used so widely, perhaps they should have considered a different name for java.beans.Statement , although you hate to base a name off of what's going to cause the least problems, rather then what makes the most sense ... ... any way, I guess it doesn't matter now: the name has been selected .... I'd be interested to hear how you solved the problem.

Problem in addBatch method in java.sql.Statement Interface

Hi
I am facing a problem java.lang.UnsupportedOperationException when using addbatch() method of java.sql.Statement Interface.
Please suggest solutions.
Thanks
nsgindia

Your JDBC driver doesn't support batch operation, try another driver(not all databases support batch'es eg MySQL)

BEx queries - one or more SQL statements generated?

Iu2019m a BusinessObjects man and BEx is new to meu2026When you execute a BEx query against a cube u2013 how does BEx manage that query and what gets send to the backend DB (e.g. Oracle)?
I understand the cube is one table in Oracle?, but other tables (dimensions?) will also be needed to return all the data for a given report/query.
Does BEx pass that as one query to Oracle, or is it performed as separate queries, with BEx pulling the result sets together?

Hi Durgesh, Susan
Thank you to both of you for your response to Ed on this thread. The background to these questions on how SQL statements are generated from BEx queries that we are working with Ed in a project to test the capability of accelerating the performance of BEx queries via the following process described below. (Please excuse any terminology errors as like I do not have a background in SAP):
1. Export fact table InfoObjects relevant to queries for InfoCubes to be accelerated by defining as Open Hub destinations, creating mappings and a data transfer process. Trigger export from SAP BI via a Process Chain and then load data to external database via ETL tool. Master data (dimension tables) remain in SAP BI
This step was completed successfully, including exporting of data.
2. Create a Universal Data Connect (UDC) source system to map to the exported fact tables.
3. Create a virtual provider mapping to the UDC source defined in step 2 to enable access to external table via JDBC.
4. Execute BEx report, selecting the query properties 'Cache inactive' and 'Reading all data at once', specifying restrictions (variables) in the report which would result in a small subset of data being returned from the fact table if applied in the SQL passed to the external database.
We hoped that SAP BI would push down predicates which could be applied to the fact table into the SQL sent to the external database via the virtual provider, but instead an SQL query selecting all columns with no WHERE clause was generated with the result that a 36 million row results set was sent across a network to join with dimension data, rather than a few rows.
Is this how SAP BI works in version 7.0 or are there configuration options which can change this behaviour? Is so, if all tables (including master data (dimensions) were exported to external database would SAP BI then transmit the database queries as joins to the external database?
Sorry this was a bit long, and thank you in advance for any advice you can give.
Stuart.

Java, access database( mdb) and java.sql.date

I having a problem querying my access database with user specified date the code is as follows
//get results of income from database with respectto dates
     //so u first create the sql.date instances
     private void getResults(){
     String text1=from.getText();//text input is like this 01-01-2005
          String text2=to.getText();
     Date d1=new Date(Integer.parseInt(text1.substring(6)),Integer.parseInt(text1.substring(3,5)),Integer.parseInt(text1.substring(0,2)));
     JOptionPane.showMessageDialog(this,d1.toString());//traces date with 1900 added to year and 1 added to month
     try{
          //custom class DataSource used to connect to database
          Connection conn=DataSource.getConnection("RealFotoInc");
          PreparedStatement ps=conn.prepareStatement("select * from Members where date=?");
          ps.setDate(1,d1);
          ResultSet rs=ps.executeQuery();
          while(rs.next()){
               System.out.println("going");
               System.out.println("trial"+rs.getString(3));
     }catch(Exception se){
          JOptionPane.showMessageDialog(this,se);
     }and it prints out nothing I dont know what is wrong

Whoever put that comment in there about "1900" and so on knew what had to be done. That "Date" class must be "java.sql.Date"; go and read the API documentation of that constructor you are using there. Then adjust the parameters you are passing to it accordingly.

Access two DB in single SQL statement

I need to insert rows from a table on one DB into a table on a second DB (residing on a separate server). Is that possible?

lujate wrote:
I have a table on one DB that needs to periodically be copied to a second DB. The DB's are from different vendors, running on different OS's.Stating it again...this has nothing to do with java.
Either the database does it or it doesn't. If it does then you use that functionality (of the database, not java). It if doesn't then your stated requirement (one statement) will not work.
Let me provide you and example that seems like it should work but in fact will not.
You can use the MS Access GUI to set up an ODBC connection to anything that you have a ODBC driver for - so say Oracle.
Once you have that then it would appear that you could set up structures that makes it look like an oracle table exists in MS Access.
One problem - that is a trick of the GUI. It will not work with JDBC because the GUI does that and not the MS Access "database".
I think you can do something similar with MS SQL Server. In that case it really does exist in the database. So you could call it from JDBC.

About java.sql.Statement

Hi friends, i want to ask if there is any way to display the complete statement as a string after setting it's parameters(that is for debuging purpose).

Hi friends, i want to ask if there is any way to
display the complete statement as a string after
setting it's parameters(that is for debuging purpose).JDBC related questions should be asked in the JDBC forum.
Your subject line is contraindicative to your question which is about PreparedStatements.
The answer to your question is no. You can however use a tracing driver that will log your queries so that you can see what is going on. Look at http://www.p6spy.com/

Java.sql.Statement hangs

I'm having trouble executing the following statement. It never moves past execute(String sql)
execute("insert into wtchangerequest2master(IDA2A2,WTCHGREQUESTNUMBER,MARKFORDELETEA2) select IDA2A2,WTCHGREQUESTNUMBER,MARKFORDELETEA2 from ccrmaster where ccrmaster.ida2a2=239207");
whereas the following line executes perfectly
execute("select distinct ida2a2 from ccrmaster");
The statement that fails with Statement.execute works in sqlplus.
Anybody have any ideas?

Println("1 pre select");
Execute("select ...");
Println("2 post select");
Println("3 pre insert select");
Execute("insert ... Select ...");
Println("4 post insert select");
The app prints 1, 2, and 3, but hangs on the second execute and never gets to 4. No exception, no stack trace. It doesn't terminate. It just sits there.
The pseudo might be a little rough.. I sent this from my phone.

Java.sql.Statement.setFetchSize(int) option for non-scrollable result sets

Hello!
Our tests indicate that fetch size option mentioned makes visible difference in performance for non-scrollable result sets also. In the same time, it seems there is no way to set this option for such result sets at TopLink level, and default fetch size is always used instead.
Can somebody propose a solution for this, I mean a way to specify custom fetch size (for results without any scrolling)?
Thanks,
Sergey

To set the JDBC fetch size for a query, use the following APIs:
int desiredFetchSize = 500;
ReadAllQuery query = new ReadAllQuery(YourClass.class);
CallQueryMechanism queryMechanism =
(CallQueryMechanism) query.getQueryMechanism();
DatabaseCall call = queryMechanism.getCall();
call.setResultSetFetchSize(desiredFetchSize);
If you wish to set the fetch size for all queries, consider using named queries for all queries (see the TopLink documentation for more information on named queries), and then configure them on startup.
Information taking from Metalink Note:237093.1

Java.sql.Statement: setQueryTimeout(int seconds) ???

Anyboby knows if this method is working with MySQL-Connector JDBC driver ?
If not, is there another way to time out a select query ?
Thanks a lot
Ludovic

Do you have an idea of how I can test it ?Well you can time a select query and afterwards set the timeout interval to a value less than the time of the query. Start the same query and check the results.
So long.

Convert SQL statements to JAVA Code ?

Using SQL queries Can I convert SQL statements to JAVA Code ?
Edited by: user11238895 on Jun 7, 2009 10:54 PM
Edited by: user11238895 on Jun 7, 2009 11:12 PM

Me very new to Oracle.
can we convert SQL Queries to JAVA Code using simple built in SQL queries ?
Which SWISS SQL Tool does [Converting SQL Queries to JAVA Code]

URGENT :: java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver]

i am trying to execute the following query using jdbc
String state = "select * from cs_test where Start_Time < DateAdd(\"s\",-19800,now()) AND End_Time >
DateAdd(\"s\",-19800,now())";
/java.sql.PreparedStatement querycs_test = c.prepareStatement(state);
java.sql.Statement querycs_test= c.createStatement();
java.sql.ResultSet rs = querycs_test.executeQuery(state);
when i run the same query at the prompt in MS Access it works fine.
The same line replaced with a simpler query works fine.
but when i run the above i get an error
java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Too few parameters. Expected 1.

Here's the value of your query before preparing it:
select * from cs_test where Start_Time < DateAdd("s",-19800,now()) AND End_Time > DateAdd("s",-19800,now())My SQL refererence doesn't have anything about functions called DateAdd or now. It might be Microsoft specific, in which case when your organization converts to another database your query is going to stop working. Don't use vender specific extensions.
Was your intention to call a Java method called DateAdd or now? Then your problem is a few missing quotes. Otherwise, I'm sorry I can't be of more help.

Does Java support mutliple sql statements in one call?

statment.executeUpdate("DROP DATABASE IF EXISTS diy55;CREATE DATABASE IF NOT EXISTS diy55 DEFAULT CHARACTER SET utf8;GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,ALTER,INDEX,USAGE on diy55.* TO 'diy55'@'localhost' identified by 'diy55';FLUSH PRIVILEGES;");Java seemes doesn't support multiple sql statements in one call, just like PHP mysql_query(), is it?

Then just extend the java.sql.Statement to your own Statement class and write logic which splits the given query at the right places and executes them one by one.
That the mysql_query() already has it built-in wouldn't say that it isn't possible in Java. Comparing with PHP is a bit pointless, it is a completely different language.

Java.sql.SQLException: Io exception: End of TNS data channel

Hello folks,
Has amyone encountered this exception? If so, could you please shed some light for what might be going wrong?
Here is my confuguration:
400MB RAM
1.2GHTz processor
Win2K Pro
Oracle server 9.0.1
JDBC Thin driver (libs for 9.0.1)
Scenario:
My Java code uses Oracle Spatial to insert SDO_GEOMETRY objects into my DB model.
I have a config file where I store my connection properties, e.g.,
<DBConnection name="twatest">
<JDBCDriver>oracle.jdbc.driver.OracleDriver</JDBCDriver>
<URL>jdbc:oracle:thin:@saturn:1521:saturn</URL>
<Username>user1</Username>
<Password>twatest</Password>
</DBConnection>
We have 2 schemas defined: user1 and twatest.
The problem first occured when I switched from user1 to twatest. Consequent attempt to run the process as user user1 failed! The Java SQL statements do not use schemas (so they default, I suppose, to the default schema for that particular user, in our case being user1-->user1, twatest-->twatest).
The problem happens in the following Java class (search for "HERE" to see where exactly the problem occurs):
package com.vividsolutions.twatest;
import java.util.*;
import java.sql.*;
import oracle.sql.*;
import oracle.sdoapi.OraSpatialManager;
import oracle.sdoapi.geom.*;
import oracle.sdoapi.adapter.*;
import oracle.sdoapi.sref.*;
import com.vividsolutions.twatest.parser.*;
import com.vividsolutions.twatest.config.*;
import com.vividsolutions.twatest.model.*;
* This class is responsible for loading lakes into the SDO Oracle Spatial DB.
public class LakeLoader
static boolean initialized = false;
private static GeometryFactory gF;
private static SRManager srManager;
private static SpatialReference sref;
private static GeometryAdapter sdoAdapter;
public static void loadLake(EdgedLake slake, Connection conn) throws Exception {
com.vividsolutions.jts.geom.Envelope e = slake.getEnvelope();
if (e == null) {
System.out.println("Invalid envilope (feature ID="+slake.getFeatureId()+")! Ignoring...");
return; // ignore lake - it's invalid (no envilope)
if (!initialized) {
initialize(conn);
initialized = true;
Geometry geom;
STRUCT str;
// insert Lake
String lakeQuery = "INSERT INTO lake " +
"(lake_id, area, bounding_box, name, instantiation_date) " +
"VALUES(?,?,?,?,?)";
PreparedStatement ps = conn.prepareStatement(lakeQuery);
int lakeId = getId(Lake.ID, conn);
ps.setInt(1, lakeId);
ps.setDouble(2, Double.parseDouble(slake.getArea()));
// Creates a 2-D rectangle (special case of Polygon geometry).
geom = gF.createRectangle(e.getMinX(), e.getMinY(), e.getMaxX(), e.getMaxY());
ps.setObject(3, sdoAdapter.exportGeometry(STRUCT.class, geom));
ps.setString(4, slake.getName());
ps.setTimestamp(5, new Timestamp(new java.util.Date().getTime()));
ps.executeUpdate(); // <-- HERE I got: java.sql.SQLException: Io exception: End of TNS data channel
//ps.close();
String ringQuery = null;
int ringId = 0;
List shellEdges = slake.getShellEdges();
if (shellEdges != null && shellEdges.size() > 0) { // if there is valid shell, insert it...
// insert shell Rings
ringQuery = "INSERT INTO ring (ring_id, lake_id, type) VALUES(?,?,?)";
ps = conn.prepareStatement(ringQuery);
ringId = getId(Ring.ID, conn);
ps.setInt(1, ringId);
ps.setInt(2, lakeId);
ps.setString(3, Ring.SHELL);
ps.executeUpdate();
//ps.close();
// insert shell ring Edges
insertEdges(shellEdges, lakeId, Ring.SHELL, ringId, conn);
List holeEdges = slake.getHoleEdges();
if (holeEdges != null && holeEdges.size() > 0) { // if there are valid holes, insert them...
// insert hole Rings
ringQuery = "INSERT INTO ring (ring_id, lake_id, type) VALUES(?,?,?)";
ps = conn.prepareStatement(ringQuery);
ringId = getId(Ring.ID, conn);
ps.setInt(1, ringId);
ps.setInt(2, lakeId);
ps.setString(3, Ring.HOLE);
ps.executeUpdate();
//ps.close();
// insert hole ring Edges
insertEdges(holeEdges, lakeId, Ring.HOLE, ringId, conn);
ps.close();
private static void insertEdges(List edges, int lakeId, String ringType,
int ringId, Connection conn) throws Exception {
if (!initialized) {
initialize(conn);
initialized = true;
Geometry geom;
STRUCT str;
// insert shell ring Edges
String edgeQuery = "INSERT INTO edge " +
"(edge_id, lake_id, ring_type, ring_id, edge_sequence, shape) " +
"VALUES(?,?,?,?,?,?)";
int edge_sequence = 0;
for (Iterator it=edges.iterator(); it.hasNext(); ) {
Edge edge = (Edge)it.next();
geom = gF.createLineString(LakeFactory.edgeToArray2D(edge)); // 2-dimensional coordinates
PreparedStatement ps = conn.prepareStatement(edgeQuery);
int edgeId = getId(Edge.ID, conn);
ps.setInt(1, edgeId);
ps.setInt(2, lakeId);
ps.setString(3, ringType);
ps.setInt(4, ringId);
ps.setInt(5, edge_sequence++);
ps.setObject(6, sdoAdapter.exportGeometry(STRUCT.class, geom));
ps.executeUpdate();
ps.close();
* @param key This can be: "lake", "ring", or "edge".
* @param conn The connection to use.
* @return the unique ID corresponding to the given key.
public static int getId(String key, Connection conn) {
int id = -1;
try {
String query = "SELECT "+key+"_SEQUENCE.NEXTVAL FROM DUAL";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
id = rs.getInt(1);
stmt.close();
} catch(SQLException sqle) {
sqle.printStackTrace();
return id;
private static void initialize(Connection conn) throws Exception {
gF = OraSpatialManager.getGeometryFactory();
// Set spatial reference system in which the geometries will be created
srManager = OraSpatialManager.getSpatialReferenceManager(conn);
sref = srManager.retrieve(8307);
gF.setSpatialReference(sref);
sdoAdapter = OraSpatialManager.getGeometryAdapter("SDO", "8.1.6",
null, STRUCT.class, null, conn);
public static void main(String args[]) throws Exception
String[] xmlLakeFiles = {
"lakes101to1400.xml",
"lakes1401to10000.xml",
"lakes10001to20000.xml",
"lakes20001to30000.xml",
"lakes30001to40000.xml",
"lakes40001to50000.xml",
"lakes50001to60000.xml"
PropertyManager pm = new PropertyManager();
int numberOfLoadedLakes = 0;
try {
pm.initialize();
Map modelMap = (Map)pm.get(XMLConfigFile.MODEL_MAP);
LakeModel lakeModel = (LakeModel)modelMap.get(LREConcreteLakeModel.NAME);
Connection connection = ConnectionManager.getConnection();
lakeModel.setConnection(connection);
for (int i=0; i<xmlLakeFiles.length; i++) {
long then = System.currentTimeMillis();
System.out.println("Loading lake "+xmlLakeFiles[i]+"...");
numberOfLoadedLakes = lakeModel.loadModel(xmlLakeFiles);
long now = System.currentTimeMillis();
System.out.println("Loaded "+numberOfLoadedLakes+" lakes!");
System.out.println("Execution time: "+(now-then)/1000+" seconds!");
System.out.println("Loading lake "+xmlLakeFiles[i]+"...done!");
connection.close();
} catch(Exception e) {
e.printStackTrace();
My client class calls LakeLoader.loadLake() method in a loop to load a bunch of Lake objects into the DB. The first lake in the list is created without problems, but when the 2-nd lake is being inserted, I get an exception at the preparedStatement.executeUpdate() statement. This happens consistently.
I tried to find information on this on the net, but seems that this problem only happened when people dealt with LOBs?!
Thank you very much!
Georgi

Suresh -- I'd probably log a TAR with Oracle support for this question if you definitely need it resolved. Support have access to all manner of existing cases, so this may be something they have seen before.
cheers
-steve-

Problem in accessing database using a java class

Hy Folks,
I have written a class to retrive data from data base and compiled it.when I said java QueryExample, I am getting the following error message.It is as below.
E:\>java QueryExample
Loading JDBC Driver -> oracle.jdbc.driver.OracleDriver
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at QueryExample.<init>(QueryExample.java:37)
at QueryExample.main(QueryExample.java:129)
Creating Statement...
Exception in thread "main" java.lang.NullPointerException
at QueryExample.performQuery(QueryExample.java:70)
at QueryExample.main(QueryExample.java:130)
Now my question is can I run a jdbc program with out using any application server or webserver.
If I can , what are all the packeages I have to down load, and how to set their classpath.
Regards,
Olive.

My basic doubght is can we write a class like this.Here I give the sample code that I am using,,,, and using Oracle9i for Windows release 2 (9.2) .
// QueryExample.java
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;
* The following class provides an example of using JDBC to perform a simple
* query from an Oracle database.
public class QueryExample {
final static String driverClass = "oracle.jdbc.driver.OracleDriver";
final static String connectionURL = "jdbc:oracle:thin:@localhost:1521:O920NT";
final static String userID = "scott";
final static String userPassword = "tiger";
Connection con = null;
* Construct a QueryExample object. This constructor will create an Oracle
* database connection.
public QueryExample() {
try {
System.out.print(" Loading JDBC Driver -> " + driverClass + "\n");
Class.forName(driverClass).newInstance();
System.out.print(" Connecting to -> " + connectionURL + "\n");
this.con = DriverManager.getConnection(connectionURL, userID, userPassword);
System.out.print(" Connected as -> " + userID + "\n");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
* Method to perform a simply query from the "emp" table.
public void performQuery() {
Statement stmt = null;
ResultSet rset = null;
String queryString = "SELECT name, date_of_hire, monthly_salary " +
"FROM emp " +
"ORDER BY name";
try {
System.out.print(" Creating Statement...\n");
stmt = con.createStatement ();
System.out.print(" Opening ResultsSet...\n");
rset = stmt.executeQuery(queryString);
int counter = 0;
while (rset.next()) {
System.out.println();
System.out.println(" Row [" + ++counter + "]");
System.out.println(" ---------------------");
System.out.println(" Name -> " + rset.getString(1));
System.out.println(" Date of Hire -> " + rset.getString(2));
System.out.println(" Monthly Salary -> " + rset.getFloat(3));
System.out.println();
System.out.print(" Closing ResultSet...\n");
rset.close();
System.out.print(" Closing Statement...\n");
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
* Close down Oracle connection.
public void closeConnection() {
try {
System.out.print(" Closing Connection...\n");
con.close();
} catch (SQLException e) {
e.printStackTrace();
* Sole entry point to the class and application.
* @param args Array of String arguments.
* @exception java.lang.InterruptedException
* Thrown from the Thread class.
public static void main(String[] args)
throws java.lang.InterruptedException {
QueryExample qe = new QueryExample();
qe.performQuery();
qe.closeConnection();
}

MS Access queries different to Java SQL statements

Similar Messages

Maybe you are looking for