Я хотел бы создать базу данных в памяти для тестирования с использованием Derby / JavaDB. Я прочитал Руководство разработчика Java DB: Использование баз данных в памяти и протестировал этот код с derby.jar
из JDK7 в "пути сборки":
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class DBTest {
public static void main(String[] args) {
final String sql = "DECLARE GLOBAL TEMPORARY TABLE memtable "+
"(id int, name varchar(10))";
final String connURL = "jdbc:derby:memory:memdatabase;create=true";
try(Connection conn = DriverManager.getConnection(connURL);
PreparedStatement ps = conn.prepareStatement(sql);) {
boolean success = ps.execute();
System.out.println("Memory database created: " + success);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
Но при запуске приложения я получаю эту ошибку:
java.sql.SQLSyntaxErrorException: Syntax error: Encountered "<EOF>" at line 1, column 66.
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.EmbedPreparedStatement.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source)
at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at DBTest.main(DBTest.java:12)
Caused by: java.sql.SQLException: Syntax error: Encountered "<EOF>" at line 1, column 66.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown Source)
... 14 more
Caused by: ERROR 42X01: Syntax error: Encountered "<EOF>" at line 1, column 66.
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)
... 8 more
Как создать таблицу базы данных в памяти с помощью Derby / JavaDB?