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From "Knut Anders Hatlen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4921) Statement.executeUpdate(String sql, String[] columnNames) throws ERROR X0X0F.S exception with EmbeddedDriver
Date Thu, 22 Dec 2011 09:38:30 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174721#comment-13174721
] 

Knut Anders Hatlen commented on DERBY-4921:
-------------------------------------------

> (...) The only other case sensitive database I know is Oracle, (...)

Another example is PostgreSQL. The following code fails:

        s.executeUpdate("create table t(x serial)");
        s.executeUpdate("insert into t values (default)", new String[]{"X"});

==> Exception in thread "main" org.postgresql.util.PSQLException: ERROR: column "X" does
not exist

Changing the column name argument in the latter statement to lowercase (new String[]{"x"})
makes it work.

PostgreSQL stores unquoted identifiers in lowercase, whereas Derby stores them in uppercase,
so it's not the exact same examples that cause problems on the two databases, but at least
they behave similarly in the sense that they treat the argument as case-sensitive.
                
> Statement.executeUpdate(String sql, String[] columnNames)  throws ERROR  X0X0F.S exception
with EmbeddedDriver
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4921
>                 URL: https://issues.apache.org/jira/browse/DERBY-4921
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.6.2.1
>            Reporter: Jarek Przygódzki
>
> Statement.executeUpdate(insertSql, int[] columnIndexes) and Statement/executeUpdate(insertSql,Statement.RETURN_GENERATED_KEYS)
 does work, Statement.executeUpdate(String sql, String[] columnNames) doesn't.
> Test program
> import java.sql.Connection;
> import java.sql.DriverManager;
> import java.sql.ResultSet;
> import java.sql.Statement;
> public class GetGeneratedKeysTest {
> 	static String createTableSql = "CREATE TABLE tbl (id integer primary key generated always
as identity, name varchar(200))";
> 	static String insertSql = "INSERT INTO tbl(name) values('value')";
> 	static String driver = "org.apache.derby.jdbc.EmbeddedDriver";
> 	static String[] idColName = { "id" };
> 	public static void main(String[] args) throws Exception {
> 		Class.forName(driver);
> 		Connection conn = DriverManager
> 				.getConnection("jdbc:derby:testDb;create=true");
> 		conn.setAutoCommit(false);
> 		Statement stmt = conn.createStatement();
> 		ResultSet rs;
> 		stmt.executeUpdate(createTableSql);
> 		stmt.executeUpdate(insertSql, idColName);
> 		rs = stmt.getGeneratedKeys();
> 		if (rs.next()) {
> 			int id = rs.getInt(1);
> 		}
> 		conn.commit();
> 	}
> }
> Result
> Exception in thread "main" java.sql.SQLException: Table 'TBL' does not have an auto-generated
column named 'id'.
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:95)
> 	at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:256)
> 	at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:391)
> 	at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:346)
> 	at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2269)
> 	at org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:81)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1321)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:625)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(EmbedStatement.java:246)
> 	at GetGeneratedKeysTest.main(GetGeneratedKeysTest.java:23)
> Caused by: java.sql.SQLException: Table 'TBL' does not have an auto-generated column
named 'id'.
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:119)
> 	at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:70)
> 	... 9 more
> Caused by: ERROR X0X0F: Table 'TBL' does not have an auto-generated column named 'id'.
> 	at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:303)
> 	at org.apache.derby.impl.sql.execute.InsertResultSet.verifyAutoGeneratedColumnsNames(InsertResultSet.java:689)
> 	at org.apache.derby.impl.sql.execute.InsertResultSet.open(InsertResultSet.java:419)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:436)
> 	at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:317)
> 	at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1232)
> 	... 3 more

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