Hi Leo,
Also I think following will be a better createString, I wonder why you didn''t get any error for "generate'. Also please don't use 'Table' as table name. I got error for that also. And KEY_ID can not have any null values, since you are making it unique it should be declared as not null. My suggestion for the createString is as follows
create table Table1 (SAMPLE_ID int not null generated always as identity,KEY
_ID bigint not null,KEY_INST_COUNT int, DATAOBJ blob (102400), unique(KEY_ID));

On 2/9/07, Mamta Satoor <msatoor@gmail.com> wrote:
You need to use BIGINT rather than long for KEY_ID column.

On 2/9/07, Leo Alberto <Alberto.Leo@ssi.it> wrote:
I'm try to using Derby in embedded mode with the integrated plug-in environment in Eclipse 3.2.0. Environment jre 1.6.0
I would create a table with this code :

public boolean tableCreation(Connection currentConn, String Table)

                    throws DatabaseDriverException {

boolean doCreateTable = true;

             Statement stmt = null;

             String createString = "create table " +

Table +

"(SAMPLE_ID int not null generate always as increment, " +

"KEY_ID long, " +

"KEY_INST_COUNT int, " +

"DATAOBJ blob (102400), " +



             try {


                    currentConn.setAutoCommit (false);

                    stmt = currentConn.createStatement();

                    DatabaseMetaData md = currentConn.getMetaData();

                    ResultSet rs = md.getTables(null, null, "%", null);

                    while (rs.next()) {

System.out .println("Elenco tabelle nel db " + rs.getString(3));

                           if (rs.getString(3).equals(tabella)) {

                                  doCreateTable = false;




                    if (doCreateTable) {

                           // execute

                           stmt. execute(createString); // I'm arriving here ang got the error

                           doCreateTable = true;





             } catch (SQLException e) {

                    throw new DatabaseDriverException("Error create table", e);


             return doCreateTable;

       }/* End tableCreation */

the error is:

Syntax error: Encountered "," at line 1, column 88.

       at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)

       at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)

       at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)

       at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)

       at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)

       at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)

       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)Error create table


       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)

       at dds.dbdrivers.DerbyDriver.tableCreation( DerbyDriver.java:257)

       at provaDB.main(provaDB.java:39 )

Caused by: java.sql.SQLException : Syntax error: Encountered "," at line 1, column 88.

       at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)

       at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown Source)

       ... 10 more

from errorlog.txt generated:


2007-02-09 17:31:01.452 GMT:

 Booting Derby version The Apache Software Foundation - Apache Derby - - (485682): instance c013800d-0110-a78e-d8b1-ffffa2db3c51

on database directory C:\DdsAppDb\DbDOMAIN_(7) 


Database Class Loader started - derby.database.classpath=''

2007-02-09 17:31:10.786 GMT Thread[main,5,main] (XID = 122), (SESSIONID = 0), (DATABASE = DbDOMAIN_(7)), (DRDAID = null), Cleanup action starting

2007-02-09 17:31:10.786 GMT Thread[main,5,main] (XID = 122), (SESSIONID = 0), (DATABASE = DbDOMAIN_(7)), (DRDAID = null), Failed Statement is:


<my add>


create table POSITION (SAMPLE_ID int not null generated always as identity, KEY_ID long, KEY_INST_COUNT int, DATAOBJ blob (102400), unique(KEY_ID))

ERROR 42X01: Syntax error: Encountered "," at line 1, column 88.

       at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)

       at org.apache.derby.impl.sql.compile.ParserImpl.parseStatement(Unknown Source)

       at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)

       at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)

       at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source)

       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)

       at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)

       at dds.dbdrivers.DerbyDriver.tableCreation(DerbyDriver.java:257)

       at provaDB.main(provaDB.java:39)

Cleanup action completed


I would be very glad if someone can help me understand wath is wrong!

thanks in advance

Alberto Leo