1. Oracle GoldenGate Classic Architecture Documentation
  2. Administer
  3. Data Management
  4. Mapping and Manipulating Data
  5. Globalization Considerations when Mapping Data
  6. Conversion between Character Sets
  7. Column Data

Column Data

Oracle GoldenGate supports the conversion of column data between character sets when the data is contained in the following column types:

  • Character-type columns: CHAR/VARCHAR/CLOB to CHAR/VARCHAR/CLOB of another character set; and CHAR/VARCHAR/CLOB to and from NCHAR/NVARCHAR/NCLOB.

  • Columns that contain string-based numbers and date-time data. Conversions of these columns is performed between z/OS EBCDIC and non-z/OS ASCII data. Conversion is not performed between ASCII and ASCII versions of this data, nor between EBCDIC and EBCDIC versions, because the data are compatible in these cases.

    Note:

    Oracle GoldenGate supports timestamp data from 0001-01-03 00:00:00 to 9999-12-31 23:59:59. If a timestamp is converted from GMT to local time, these limits also apply to the resulting timestamp. A value of zero month, zero day field, or an all zero date value isn't supported. For example, values such as 0000-00-00 00:00:00, or any date value that includes a zero month or zero day field isn't supported.

Character-set conversion for column data is limited to a direct mapping of a source column and a target column in the COLMAP or USEDEFAULTS clauses of the Replicat MAP parameter. A direct mapping is a name-to-name mapping without the use of a stored procedure or column-conversion function. Replicat performs the character-set conversion. No conversion is performed by Extract or a data pump.