2

derby のインストールとセットアップに問題がありますが、部分的に成功しています。

root@dur:~/apache-james-3.0-beta4/var/store/derby# 
root@dur:~/apache-james-3.0-beta4/var/store/derby# ll
total 36
drwxr-xr-x 5 root root  4096 Aug 23 16:46 ./
drwxr-xr-x 5  501 staff 4096 Aug 23 02:07 ../
-rw-r--r-- 1 root root     4 Aug 23 02:07 dbex.lck
-rw-r--r-- 1 root root    38 Aug 23 02:07 db.lck
-rw-r--r-- 1 root root   187 Aug 23 16:46 derby.log
drwxr-xr-x 2 root root  4096 Aug 23 02:07 log/
drwxr-xr-x 2 root root  4096 Aug 23 02:07 seg0/
-rw-r--r-- 1 root root   868 Aug 23 02:07 service.properties
drwxr-xr-x 2 root root  4096 Aug 23 02:07 tmp/
root@dur:~/apache-james-3.0-beta4/var/store/derby# 
root@dur:~/apache-james-3.0-beta4/var/store/derby# java org.apache.derby.tools.ij
ij version 10.9
ij> quit;
root@dur:~/apache-james-3.0-beta4/var/store/derby#

この特定のデータベースにクエリを実行するにはどうすればよいですか?

4

2 に答える 2

1

データベース自体を実際にクエリする方法はまだわかりませんが、接続するのはかなり簡単です。

root@dur:~/apache-james-3.0-beta4/var/store/derby# 
root@dur:~/apache-james-3.0-beta4/var/store/derby# pwd
/root/apache-james-3.0-beta4/var/store/derby
root@dur:~/apache-james-3.0-beta4/var/store/derby# 
root@dur:~/apache-james-3.0-beta4/var/store/derby# ll
total 24
drwxr-xr-x 4 root root  4096 Aug 23 18:24 ./
drwxr-xr-x 5  501 staff 4096 Aug 23 02:07 ../
-rw-r--r-- 1 root root  1092 Aug 23 18:24 derby.log
drwxr-xr-x 2 root root  4096 Aug 23 02:07 log/
drwxr-xr-x 2 root root  4096 Aug 23 02:07 seg0/
-rw-r--r-- 1 root root   868 Aug 23 02:07 service.properties
root@dur:~/apache-james-3.0-beta4/var/store/derby# 
root@dur:~/apache-james-3.0-beta4/var/store/derby# java org.apache.derby.tools.ij 
ij version 10.9
ij> connect 'jdbc:derby:/root/apache-james-3.0-beta4/var/store/derby';
ij> 
;
ij> show schema;
ERROR 42X01: Syntax error: Encountered "show" at line 1, column 1.
Issue the 'help' command for general information on IJ command syntax.
Any unrecognized commands are treated as potential SQL commands and executed directly.
Consult your DBMS server reference documentation for details of the SQL syntax supported by your server.
ij> 
;
ij> show schemas;
TABLE_SCHEM                   
------------------------------
APP                           
NULLID                        
SQLJ                          
SYS                           
SYSCAT                        
SYSCS_DIAG                    
SYSCS_UTIL                    
SYSFUN                        
SYSIBM                        
SYSPROC                       
SYSSTAT                       

11 rows selected
ij> show tables;
TABLE_SCHEM         |TABLE_NAME                    |REMARKS             
------------------------------------------------------------------------
SYS                 |SYSALIASES                    |                    
SYS                 |SYSCHECKS                     |                    
SYS                 |SYSCOLPERMS                   |                    
SYS                 |SYSCOLUMNS                    |                    
SYS                 |SYSCONGLOMERATES              |                    
SYS                 |SYSCONSTRAINTS                |                    
SYS                 |SYSDEPENDS                    |                    
SYS                 |SYSFILES                      |                    
SYS                 |SYSFOREIGNKEYS                |                    
SYS                 |SYSKEYS                       |                    
SYS                 |SYSPERMS                      |                    
SYS                 |SYSROLES                      |                    
SYS                 |SYSROUTINEPERMS               |                    
SYS                 |SYSSCHEMAS                    |                    
SYS                 |SYSSEQUENCES                  |                    
SYS                 |SYSSTATEMENTS                 |                    
SYS                 |SYSSTATISTICS                 |                    
SYS                 |SYSTABLEPERMS                 |                    
SYS                 |SYSTABLES                     |                    
SYS                 |SYSTRIGGERS                   |                    
SYS                 |SYSVIEWS                      |                    
SYSIBM              |SYSDUMMY1                     |                    
APP                 |JAMES_DOMAIN                  |                    
APP                 |JAMES_MAIL                    |                    
APP                 |JAMES_MAILBOX                 |                    
APP                 |JAMES_MAIL_PROPERTY           |                    
APP                 |JAMES_MAIL_USERFLAG           |                    
APP                 |JAMES_RECIPIENT_REWRITE       |                    
APP                 |JAMES_SUBSCRIPTION            |                    
APP                 |JAMES_USER                    |                    
APP                 |OPENJPA_SEQUENCE_TABLE        |                    

31 rows selected
ij> quit;
root@dur:~/apache-james-3.0-beta4/var/store/derby#
于 2012-08-24T01:27:33.610 に答える