Artykuł
07/22/2011

sp_getdefaultdatatypemapping (języka Transact-SQL)

Returns information on the default mapping for the specified data type between Microsoft SQL Server and a non-SQL Server database management system (DBMS).Ta procedura składowana jest wykonywany na dystrybutora na dowolnej bazy danych.

Ikona łącza do tematu Konwencje składni Transact-SQL

Składnia

sp_getdefaultdatatypemapping [ @source_dbms = ] 'source_dbms' 
    [ , [ @source_version = ] 'source_version' ]
        , [ @source_type = ] 'source_type'  
    [ , [ @source_length = ] source_length ]
    [ , [ @source_precision = ] source_precision ]
    [ , [ @source_scale = ] source_scale ]
    [ , [ @source_nullable = ] source_nullable ]
        , [ @destination_dbms = ] 'destination_dbms' 
    [ , [ @destination_version = ] 'destination_version' ]
    [ , [ @destination_type = ] 'destination_type' OUTPUT ]
    [ , [ @destination_length = ] destination_length OUTPUT ]
    [ , [ @destination_precision = ] destination_precision OUTPUT ]
    [ , [ @destination_scale = ] destination_scale OUTPUT ]
    [ , [ @destination_nullable = ] source_nullable OUTPUT ]
    [ , [ @dataloss = ] dataloss OUTPUT ]

Argumenty

[ @ source_dbms=] 'source_dbms"
Is the name of the DBMS from which the data types are mapped.source_dbms is sysname, and can be one of the following values:

Wartość

Opis

MSSQLSERVER

Źródło jest SQL Server bazy danych.

ORACLE

Źródło jest baza danych Oracle.

Należy określić ten parametr.
[ @source_version= ] 'source_version'
Is the version number of the source DBMS.source_version is varchar(10), with a default value of NULL.
[ @ source_type=] 'source_type"
Is the data type in the source DBMS.source_type is sysname, with no default.
[ @source_length= ] source_length
Is the length of the data type in the source DBMS.source_length is bigint, with a default value of NULL.
[ @source_precision= ] source_precision
Is the precision of the data type in the source DBMS.source_precision is bigint, with a default value of NULL.
[ @source_scale= ] source_scale
Is the scale of the data type in the source DBMS.source_scale is int, with a default value of NULL.
[ @source_nullable= ] source_nullable
Is if the data type in the source DBMS supports a value of NULL.source_nullable is bit, with a default value of 1, which means that NULL values are supported.

Wartość	Opis
MSSQLSERVER	Źródło jest SQL Server bazy danych.
ORACLE	Źródło jest baza danych Oracle.

[ @ destination_dbms =] 'destination_dbms"
Is the name of the destination DBMS.destination_dbms is sysname, and can be one of the following values:

Wartość	Opis
MSSQLSERVER	obiekt obiekt docelowy jest SQL Server bazy danych.
ORACLE	obiekt obiekt docelowy jest baza danych Oracle.
DB2	obiekt obiekt docelowy jest bazą danych IBM DB2.
SYBASE	obiekt obiekt docelowy jest baza danych Sybase.

Należy określić ten parametr.

[ @ destination_version=] 'destination_version"
Is the product version of the destination DBMS.destination_version is varchar(10), with a default value of NULL.
[ @ destination_type=] 'destination_type" danych wyjściowych
Is the data type listed in the destination DBMS.destination_type is sysname, with a default value of NULL.
[ @destination_length= ] destination_length OUTPUT
Is the length of the data type in the destination DBMS.destination_length is bigint, with a default value of NULL.
[ @destination_precision= ] destination_precision OUTPUT
Is the precision of the data type in the destination DBMS.destination_precision is bigint, with a default value of NULL.
[ @destination_scale= ] destination_scaleOUTPUT
Is the scale of the data type in the destination DBMS.destination_scale is int, with a default value of NULL.
[ @destination_nullable= ] destination_nullableOUTPUT
Is if the data type in the destination DBMS supports a value of NULL.destination_nullable is bit, with a default value of NULL.1 oznacza, że wartości NULL są obsługiwane.
[ @dataloss= ] datalossOUTPUT
Is if the mapping has the potential for data loss.dataloss is bit, with a default value of NULL.1 oznacza, że istnieje ryzyko utraty danych.