Will's Blog

------------------ Java Information ------------------
Java Version:    1.6.0_18
Java Vendor:     Sun Microsystems Inc.
Java home:       /usr/local/jdk1.6.0_18/jre
Java classpath:  /windows/E/Computer Study/Software Study/Programming/Eclipse Workspace On Ubuntu 10.10/AccountManagement/bin:/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbytools.jar:/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derby.jar:/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbynet.jar:/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbyclient.jar
OS name:         Linux
OS architecture: i386
OS version:      2.6.35-22-generic
Java user name:  knowyourself1010
Java user home:  /home/knowyourself1010
Java user dir:   /windows/E/Computer Study/Software Study/Programming/Eclipse Workspace On Ubuntu 10.10/AccountManagement
java.specification.name: Java Platform API Specification
java.specification.version: 1.6
java.runtime.version: 1.6.0_18-b07
--------- Derby Information --------
JRE - JDBC: Java SE 6 - JDBC 4.0
[/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derby.jar] 10.6.2.1 - (999685)
[/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbytools.jar] 10.6.2.1 - (999685)
[/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbynet.jar] 10.6.2.1 - (999685)
[/opt/eclipse/plugins/org.apache.derby.core_10.6.2/derbyclient.jar] 10.6.2.1 - (999685)
------------------------------------------------------
----------------- Locale Information -----------------
------------------------------------------------------

ij version 10.6
ij>

ij> connect 'jdbc:derby:MyDbTest;create=true';

ij> help;
 
 Supported commands include:
 
  PROTOCOL 'JDBC protocol' [ AS ident ];
                               -- sets a default or named protocol
  DRIVER 'class for driver';   -- loads the named class
  CONNECT 'url for database' [ PROTOCOL namedProtocol ] [ AS connectionName ];
                               -- connects to database URL
                               -- and may assign identifier
  SET CONNECTION connectionName; -- switches to the specified connection
  SHOW CONNECTIONS;            -- lists all connections
  AUTOCOMMIT [ ON | OFF ];     -- sets autocommit mode for the connection
  DISCONNECT [ CURRENT | connectionName | ALL ];
                               -- drop current, named, or all connections;
                               -- the default is CURRENT
 
  SHOW SCHEMAS;                -- lists all schemas in the current database
  SHOW [ TABLES | VIEWS | PROCEDURES | FUNCTIONS | SYNONYMS ] { IN schema };
                               -- lists tables, views, procedures, functions or synonyms
  SHOW INDEXES { IN schema | FROM table };
                               -- lists indexes in a schema, or for a table
  SHOW ROLES;                  -- lists all defined roles in the database,
                               -- sorted
  SHOW ENABLED_ROLES;          -- lists the enabled roles for the current
                               -- connection (to see current role use
                               -- VALUES CURRENT_ROLE), sorted
  SHOW SETTABLE_ROLES;         -- lists the roles which can be set for the
                               -- current connection, sorted
  DESCRIBE name;               -- lists columns in the named table
 
  COMMIT;                      -- commits the current transaction
  ROLLBACK;                    -- rolls back the current transaction
 
  PREPARE name AS 'SQL-J text'; -- prepares the SQL-J text
  EXECUTE { name | 'SQL-J text' } [ USING { name | 'SQL-J text' } ] ;
                               -- executes the statement with parameter
                               -- values from the USING result set row
  REMOVE name;                 -- removes the named previously prepared statement
 
  RUN 'filename';              -- run commands from the named file
 
  ELAPSEDTIME [ ON | OFF ];    -- sets elapsed time mode for ij
  MAXIMUMDISPLAYWIDTH integerValue;
                               -- sets the maximum display width for
                               -- each column to integerValue
 
  ASYNC name 'SQL-J text';     -- run the command in another thread
  WAIT FOR name;               -- wait for result of ASYNC'd command
 
  GET [SCROLL INSENSITIVE] [WITH  {HOLD | NOHOLD}] CURSOR name AS 'SQL-J query';
                               -- gets a cursor (JDBC result set) on the query
                               -- the default is a forward-only cursor with holdability
  NEXT name;                   -- gets the next row from the named cursor
  FIRST name;                  -- gets the first row from the named scroll cursor
  LAST name;                   -- gets the last row from the named scroll cursor
  PREVIOUS name;               -- gets the previous row from the named scroll cursor
  ABSOLUTE integer name;       -- positions the named scroll cursor at the absolute row number
                               -- (A negative number denotes position from the last row.)
  RELATIVE integer name;       -- positions the named scroll cursor relative to the current row
                               -- (integer is number of rows)
  AFTER LAST name;             -- positions the named scroll cursor after the last row
  BEFORE FIRST name;           -- positions the named scroll cursor before the first row
  GETCURRENTROWNUMBER name;    -- returns the row number for the current position of the named scroll cursor
                               -- (0 is returned when the cursor is not positioned on a row.)
  CLOSE name;                  -- closes the named cursor
  LOCALIZEDDISPLAY [ ON | OFF ];
                               -- controls locale sensitive data representation
 
  EXIT;                        -- exits ij
  HELP;                        -- shows this message
 
 Any unrecognized commands are treated as potential SQL-J commands and executed directly.

ij> show connections;
CONNECTION0* -     jdbc:derby:MyDbTest
* = current connection

ij> create table derbyDB(num int, addr varchar(40));
0 rows inserted/updated/deleted
ij> insert into derbyDB values (1956,'Webster St.');
1 row inserted/updated/deleted
ij> insert into derbyDB values (1910,'Union St.');
1 row inserted/updated/deleted
ij> select * from derbyDB;
NUM        |ADDR                                   
----------------------------------------------------
1956       |Webster St.                            
1910       |Union St.                              

2 rows selected
ij> update derbyDB set num=180,addr='Grand Ave.' where num=1956;
1 row inserted/updated/deleted
ij> select * from derbyDB;
NUM        |ADDR                                   
----------------------------------------------------
180        |Grand Ave.                             
1910       |Union St.                              

2 rows selected

ij> disconnect;
ij> show connections;
No connections available.
ij> exit;

ij> run 'my_file.sql';

Connection conn =DriverManager.getConnection("jdbc:derby:MyDbTest");
或者：
jdbc:derby:../otherDirectory/MyDbTest
jdbc:derby:directory:MyDbTest
jdbc:derby:jar:(c:/derby/lib/jar2.jar)MyDbTest