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database_properties tips

Expert Oracle Database Tips by Donald BurlesonFebruary 17, 2015

 

Question:  What is the database_properties view and what information does it contain?

Answer: Oracle needed a way to display global parameter values with standard SQL, and we now have the database_properties view that allows you to see system-wide default values such as the default tablespace and default temporary tablespace, global database name, time zone, and much, much more.

select
    property_value
from
    database properties
where
    property_name = 'default_permanent_tablespace';

Here we can see a list of all of the values for our database from database_properties:

select *
    from
database_properties
    order by 1;

PROPERTY_NAME             PROPERTY_VALUE     DESCRIPTION
------------------------- ---------------    -------------------------------- DBTIMEZONE                0:00               DB time zone
DEFAULT_TEMP_TABLESPACE   TEMP               ID of default temporary tablespace
DICT.BASE                 2                  dictionary base tables version #
EXPORT_VIEWS_VERSION      8                  Export views revision #
GLOBAL_DB_NAME            MYDB               Global database name
NLS_CALENDAR              JULIAN             Calendar system
NLS_CHARACTERSET          WE8ISO8859P1       Character set
NLS_COMP                  BINARY             NLS comparison
NLS_CURRENCY              $                  Local currency
NLS_DATE_FORMAT           DD-MON-RR          Date format
NLS_DATE_LANGUAGE         AMERICAN           Date language
NLS_DUAL_CURRENCY         $                  Dual currency symbol
NLS_ISO_CURRENCY          AMERICA            ISO currency
NLS_LANGUAGE              AMERICAN           Language
NLS_LENGTH_SEMANTICS      BYTE               NLS length semantics
NLS_NCHAR_CHARACTERSET    AL16UTF16          NCHAR Character set
NLS_NCHAR_CONV_EXCP       FALSE              NLS conversion exception
NLS_NUMERIC_CHARACTERS    .,                 Numeric characters
NLS_RDBMS_VERSION         11.2               RDBMS version for NLS parameters
NLS_SAVED_NCHAR_CS        WE8ISO8859P1
NLS_SORT                  BINARY             Linguistic definition
NLS_TERRITORY             AMERICA            Territory
NLS_TIMESTAMP_FORMAT      DD-MON-RR HH.MI.SSXFF AM  Time stamp format
NLS_TIMESTAMP_TZ_FORMAT   DD-MON-RR HH.MI.SSXFF AM TZH:TZM Timestamp with TZ format
NLS_TIME_FORMAT           HH.MI.SSXFF AM         Time format
NLS_TIME_TZ_FORMAT        HH.MI.SSXFF AM TZH:TZM Time with timezone format

 
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