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sp_getdefaultdatatypemapping (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).Bu saklı yordam dağıtımcı herhangi bir veritabanı üzerinde sırasında yürütülür.

Topic link iconTransact-SQL sözdizimi kuralları

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 ]

Bağımsız değişkenler

  • [ @ 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:

    Değer

    Açıklama

    mssqlserver

    Kaynak bir SQL Server Veritabanı.

    oracle

    kaynak Oracle veritabanıdır.

    Bu parametre belirtmelisiniz.

  • [ @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.

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

    Değer

    Açıklama

    mssqlserver

    Hedef bir SQL Server Veritabanı.

    oracle

    Hedef, bir Oracle veritabanıdır.

    DB2

    Hedef bir IBM DB2 veritabanıdır.

    sybase

    Hedef, Sybase veritabanıdır.

    Bu parametre belirtmelisiniz.

  • [ @ 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' OUTPUT
    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 NULL değerleri desteklendiğini gösterir.

  • [ @dataloss= ] datalossOUTPUT
    Is if the mapping has the potential for data loss.dataloss is bit, with a default value of NULL.1 bir olası veri kaybı olduğunu gösterir.

Dönüş Kodu Değerleri

0 (başarılı) veya 1 (hata)

Remarks

sp_getdefaultdatatypemapping arasında çoğaltma türleri kullanılırSQL Server bir olmayan ve -SQL Server dbms.

sp_getdefaultdatatypemapping belirtilen kaynak veri türüne en yakın eşleşme olan varsayılan hedef veri türünü döndürür.

İzinler

Yalnızca üyeleri sysadmin sunucu rolünü can sabit yürütmek sp_getdefaultdatatypemapping.