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Thursday, April 30, 2009

Columns with trailing spaces in DBA_TRIGGERS DBA_TRIGGERS的字段的结尾有空格

Columns with trailing spaces in DBA_TRIGGERS
DBA_TRIGGERS的字段的结尾有空格

参考:Damnit Oracle!

查看系统视图定义可知, TRIGGERING_EVENT 字段因为是拼出来的, 所以后面可能会有空格,
而 BASE_OBJECT_TYPE, ACTION_TYPE 字段的值为了(为什么?)等于该字段数据类型的定义长度, 有时后面也加上了空格
确实很奇怪

SQL> desc DBA_TRIGGERS
 Name                                                                          Null?    Type
 ----------------------------------------------------------------------------- -------- ----------------------------------------------------
 OWNER                                                                                  VARCHAR2(30)
 TRIGGER_NAME                                                                           VARCHAR2(30)
 TRIGGER_TYPE                                                                           VARCHAR2(16)
 TRIGGERING_EVENT                                                                       VARCHAR2(227)
 TABLE_OWNER                                                                            VARCHAR2(30)
 BASE_OBJECT_TYPE                                                                       VARCHAR2(16)
 TABLE_NAME                                                                             VARCHAR2(30)
 COLUMN_NAME                                                                            VARCHAR2(4000)
 REFERENCING_NAMES                                                                      VARCHAR2(128)
 WHEN_CLAUSE                                                                            VARCHAR2(4000)
 STATUS                                                                                 VARCHAR2(8)
 DESCRIPTION                                                                            VARCHAR2(4000)
 ACTION_TYPE                                                                            VARCHAR2(11)
 TRIGGER_BODY                                                                           LONG

SQL> select text from dba_views where view_name='DBA_TRIGGERS';

TEXT
--------------------------------------------------------------------------------
select trigusr.name, trigobj.name,
decode(t.type#, 0, 'BEFORE STATEMENT',
                1, 'BEFORE EACH ROW',
                2, 'AFTER STATEMENT',
                3, 'AFTER EACH ROW',
                4, 'INSTEAD OF',
                   'UNDEFINED'),
decode(t.insert$*100 + t.update$*10 + t.delete$,
                 100, 'INSERT',
                 010, 'UPDATE',
                 001, 'DELETE',
                 110, 'INSERT OR UPDATE',
                 101, 'INSERT OR DELETE',
                 011, 'UPDATE OR DELETE',
                 111, 'INSERT OR UPDATE OR DELETE', 'ERROR'),
tabusr.name,
decode(bitand(t.property, 1), 1, 'VIEW',
                              0, 'TABLE',
                                 'UNDEFINED'),
tabobj.name, NULL,
'REFERENCING NEW AS '||t.refnewname||' OLD AS '||t.refoldname,
t.whenclause,decode(t.enabled, 0, 'DISABLED', 1, 'ENABLED', 'ERROR'),
t.definition,
decode(bitand(t.property, 2), 2, 'CALL',
                                 'PL/SQL     '),
t.action#
from sys.obj$ trigobj, sys.obj$ tabobj, sys.trigger$ t,
     sys.user$ tabusr, sys.user$ trigusr
where (trigobj.obj#   = t.obj# and
       tabobj.obj#    = t.baseobject and
       tabobj.owner#  = tabusr.user# and
       trigobj.owner# = trigusr.user# and
       bitand(t.property, 63)     < 8 )
union all
select trigusr.name, trigobj.name,
decode(t.type#, 0, 'BEFORE EVENT',
                2, 'AFTER EVENT',
                   'UNDEFINED'),
decode(bitand(t.sys_evts, 1), 1, 'STARTUP ') ||
decode(bitand(t.sys_evts, 2), 2,
       decode(sign(bitand(t.sys_evts, 1)), 1, 'OR SHUTDOWN ',
                                               'SHUTDOWN ')) ||
decode(bitand(t.sys_evts, 4), 4,
       decode(sign(bitand(t.sys_evts, 3)), 1, 'OR ERROR ',
                                              'ERROR ')) ||
decode(bitand(t.sys_evts, 8), 8,
       decode(sign(bitand(t.sys_evts, 7)), 1, 'OR LOGON ',
                                              'LOGON ')) ||
decode(bitand(t.sys_evts, 16), 16,
       decode(sign(bitand(t.sys_evts, 15)), 1, 'OR LOGOFF ',
                                               'LOGOFF ')) ||
decode(bitand(t.sys_evts, 262176), 32,
       decode(sign(bitand(t.sys_evts, 31)), 1, 'OR CREATE ',
                                               'CREATE ')) ||
decode(bitand(t.sys_evts, 262208), 64,
       decode(sign(bitand(t.sys_evts, 63)), 1, 'OR ALTER ',
                                               'ALTER ')) ||
decode(bitand(t.sys_evts, 262272), 128,
       decode(sign(bitand(t.sys_evts, 127)), 1, 'OR DROP ',
                                                'DROP ')) ||
decode (bitand(t.sys_evts, 262400), 256,
        decode(sign(bitand(t.sys_evts, 255)), 1, 'OR ANALYZE ',
                                                 'ANALYZE ')) ||
decode (bitand(t.sys_evts, 262656), 512,
        decode(sign(bitand(t.sys_evts, 511)), 1, 'OR COMMENT ',
                                                 'COMMENT ')) ||
decode (bitand(t.sys_evts, 263168), 1024,
        decode(sign(bitand(t.sys_evts, 1023)), 1, 'OR GRANT ',
                                                  'GRANT ')) ||
decode (bitand(t.sys_evts, 264192), 2048,
        decode(sign(bitand(t.sys_evts, 2047)), 1, 'OR REVOKE ',
                                                  'REVOKE ')) ||
decode (bitand(t.sys_evts, 266240), 4096,
        decode(sign(bitand(t.sys_evts, 4095)), 1, 'OR TRUNCATE ',
                                                  'TRUNCATE ')) ||
decode (bitand(t.sys_evts, 270336), 8192,
        decode(sign(bitand(t.sys_evts, 8191)), 1, 'OR RENAME ',
                                                  'RENAME ')) ||
decode (bitand(t.sys_evts, 278528), 16384,
        decode(sign(bitand(t.sys_evts, 16383)), 1, 'OR ASSOCIATE STATISTICS ',
                                                   'ASSOCIATE STATISTICS ')) ||
decode (bitand(t.sys_evts, 294912), 32768,
        decode(sign(bitand(t.sys_evts, 32767)), 1, 'OR AUDIT ',
                                                   'AUDIT ')) ||
decode (bitand(t.sys_evts, 327680), 65536,
        decode(sign(bitand(t.sys_evts, 65535)), 1,
               'OR DISASSOCIATE STATISTICS ', 'DISASSOCIATE STATISTICS ')) ||
decode (bitand(t.sys_evts, 393216), 131072,
        decode(sign(bitand(t.sys_evts, 131071)), 1, 'OR NOAUDIT ',
                                                    'NOAUDIT ')) ||
decode (bitand(t.sys_evts, 262144), 262144,
        decode(sign(bitand(t.sys_evts, 31)), 1, 'OR DDL ',
                                                   'DDL ')) ||
decode (bitand(t.sys_evts, 8388608), 8388608,
        decode(sign(bitand(t.sys_evts, 8388607)), 1, 'OR SUSPEND ',
                                                     'SUSPEND ')),
'SYS',
'DATABASE        ',
NULL,
NULL,
'REFERENCING NEW AS '||t.refnewname||' OLD AS '||t.refoldname
  || decode(bitand(t.property,32),32,' PARENT AS ' || t.refprtname,NULL),
t.whenclause,decode(t.enabled, 0, 'DISABLED', 1, 'ENABLED', 'ERROR'),
t.definition,
decode(bitand(t.property, 2), 2, 'CALL',
                                 'PL/SQL     '),
t.action#
from sys.obj$ trigobj, sys.trigger$ t, sys.user$ trigusr
where (trigobj.obj#   = t.obj# and
       trigobj.owner# = trigusr.user# and
       bitand(t.property, 63)    >= 8 and bitand(t.property, 63) < 16)
union all
select trigusr.name, trigobj.name,
decode(t.type#, 0, 'BEFORE EVENT',
                2, 'AFTER EVENT',
                   'UNDEFINED'),
decode(bitand(t.sys_evts, 1), 1, 'STARTUP ') ||
decode(bitand(t.sys_evts, 2), 2,
       decode(sign(bitand(t.sys_evts, 1)), 1, 'OR SHUTDOWN ',
                                               'SHUTDOWN ')) ||
decode(bitand(t.sys_evts, 4), 4,
       decode(sign(bitand(t.sys_evts, 3)), 1, 'OR ERROR ',
                                              'ERROR ')) ||
decode(bitand(t.sys_evts, 8), 8,
       decode(sign(bitand(t.sys_evts, 7)), 1, 'OR LOGON ',
                                              'LOGON ')) ||
decode(bitand(t.sys_evts, 16), 16,
       decode(sign(bitand(t.sys_evts, 15)), 1, 'OR LOGOFF ',
                                               'LOGOFF ')) ||
decode(bitand(t.sys_evts, 262176), 32,
       decode(sign(bitand(t.sys_evts, 31)), 1, 'OR CREATE ',
                                               'CREATE ')) ||
decode(bitand(t.sys_evts, 262208), 64,
       decode(sign(bitand(t.sys_evts, 63)), 1, 'OR ALTER ',
                                               'ALTER ')) ||
decode(bitand(t.sys_evts, 262272), 128,
       decode(sign(bitand(t.sys_evts, 127)), 1, 'OR DROP ',
                                                'DROP ')) ||
decode (bitand(t.sys_evts, 262400), 256,
        decode(sign(bitand(t.sys_evts, 255)), 1, 'OR ANALYZE ',
                                                 'ANALYZE ')) ||
decode (bitand(t.sys_evts, 262656), 512,
        decode(sign(bitand(t.sys_evts, 511)), 1, 'OR COMMENT ',
                                                 'COMMENT ')) ||
decode (bitand(t.sys_evts, 263168), 1024,
        decode(sign(bitand(t.sys_evts, 1023)), 1, 'OR GRANT ',
                                                  'GRANT ')) ||
decode (bitand(t.sys_evts, 264192), 2048,
        decode(sign(bitand(t.sys_evts, 2047)), 1, 'OR REVOKE ',
                                                  'REVOKE ')) ||
decode (bitand(t.sys_evts, 266240), 4096,
        decode(sign(bitand(t.sys_evts, 4095)), 1, 'OR TRUNCATE ',
                                                  'TRUNCATE ')) ||
decode (bitand(t.sys_evts, 270336), 8192,
        decode(sign(bitand(t.sys_evts, 8191)), 1, 'OR RENAME ',
                                                  'RENAME ')) ||
decode (bitand(t.sys_evts, 278528), 16384,
        decode(sign(bitand(t.sys_evts, 16383)), 1, 'OR ASSOCIATE STATISTICS ',
                                                   'ASSOCIATE STATISTICS ')) ||
decode (bitand(t.sys_evts, 294912), 32768,
        decode(sign(bitand(t.sys_evts, 32767)), 1, 'OR AUDIT ',
                                                   'AUDIT ')) ||
decode (bitand(t.sys_evts, 327680), 65536,
        decode(sign(bitand(t.sys_evts, 65535)), 1,
               'OR DISASSOCIATE STATISTICS ', 'DISASSOCIATE STATISTICS ')) ||
decode (bitand(t.sys_evts, 393216), 131072,
        decode(sign(bitand(t.sys_evts, 131071)), 1, 'OR NOAUDIT ',
                                                    'NOAUDIT ')) ||
decode (bitand(t.sys_evts, 262144), 262144,
        decode(sign(bitand(t.sys_evts, 31)), 1, 'OR DDL ',
                                                   'DDL ')) ||
decode (bitand(t.sys_evts, 8388608), 8388608,
        decode(sign(bitand(t.sys_evts, 8388607)), 1, 'OR SUSPEND ',
                                                     'SUSPEND ')),
tabusr.name,
'SCHEMA',
NULL,
NULL,
'REFERENCING NEW AS '||t.refnewname||' OLD AS '||t.refoldname,
t.whenclause,decode(t.enabled, 0, 'DISABLED', 1, 'ENABLED', 'ERROR'),
t.definition,
decode(bitand(t.property, 2), 2, 'CALL',
                                 'PL/SQL     '),
t.action#
from sys.obj$ trigobj, sys.trigger$ t, sys.user$ tabusr, sys.user$ trigusr
where (trigobj.obj#   = t.obj# and
       trigobj.owner# = trigusr.user# and
       bitand(t.property, 63) >= 16 and bitand(t.property, 63) < 32 and
       tabusr.user# = t.baseobject)
union all
select trigusr.name, trigobj.name,
decode(t.type#, 0, 'BEFORE STATEMENT',
               1, 'BEFORE EACH ROW',
               2, 'AFTER STATEMENT',
               3, 'AFTER EACH ROW',
               4, 'INSTEAD OF',
               'UNDEFINED'),
decode(t.insert$*100 + t.update$*10 + t.delete$,
                 100, 'INSERT',
                 010, 'UPDATE',
                 001, 'DELETE',
                 110, 'INSERT OR UPDATE',
                 101, 'INSERT OR DELETE',
                 011, 'UPDATE OR DELETE',
                 111, 'INSERT OR UPDATE OR DELETE', 'ERROR'),
tabusr.name,
decode(bitand(t.property, 1), 1, 'VIEW',
                              0, 'TABLE',
                                 'UNDEFINED'),
tabobj.name, ntcol.name,
'REFERENCING NEW AS '||t.refnewname||' OLD AS '||t.refoldname ||
  ' PARENT AS ' || t.refprtname,
t.whenclause,decode(t.enabled, 0, 'DISABLED', 1, 'ENABLED', 'ERROR'),
t.definition,
decode(bitand(t.property, 2), 2, 'CALL',
                                 'PL/SQL     '),
t.action#
from sys.obj$ trigobj, sys.obj$ tabobj, sys.trigger$ t,
     sys.user$ tabusr, sys.user$ trigusr, sys.viewtrcol$ ntcol
where (trigobj.obj#   = t.obj# and
       tabobj.obj#    = t.baseobject and
       tabobj.owner#  = tabusr.user# and
       trigobj.owner# = trigusr.user# and
       t.nttrigcol    = ntcol.intcol# and
       t.nttrigatt    = ntcol.attribute# and
       t.baseobject   = ntcol.obj# and
       bitand(t.property, 63)     >= 32)


SQL>

-fin-

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