Oracle Cloud Infrastructure Documentation

Export Data to a Directory

Use DBMS_CLOUD.EXPORT_DATA to export files to a directory.
The directory to which you export files can be in the Autonomous Database file system or an attached external file system. See the following pages for more information:

Parent topic: Export Data From Autonomous Database

Export Data as CSV to a Directory

Shows the steps to export table data from your Autonomous Database to a directory as CSV data by specifying a query.

  1. Connect to your Autonomous Database instance.

    See Connect to Autonomous Database for more information.

  2. Create a directory.

    For example:

    CREATE DIRECTORY export_dir AS 'export_dir';
    See Create a Directory for more information.
  3. Run DBMS_CLOUD.EXPORT_DATA and specify the format parameter type with the value json to export the results as CSV files to a directory. Do not include the credential parameter when sending output to a directory.
    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.csv',
    format => JSON_OBJECT('type' value 'csv'),
    query => 'SELECT * FROM sales'
 );
END;
/

    When record delimiters include escape characters, such as \r\n or \t, enclose the record delimiters in double quotes. For example, to use the record delimiter \r\n, enclose the value in double quotes:"\r\n". 

    BEGIN
  DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.csv',
    query => 'SELECT * FROM sales',
    format => JSON_OBJECT('type' value 'json', 'recorddelimiter' value '"\r\n"' format json));
END;
/

    The directory name is case-sensitive when the directory name is enclosed in double quotes. For example:

    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => '"export_dir":sales.csv',
    format => JSON_OBJECT('type' value 'csv'),
    query => 'SELECT * FROM sales'
 );
END;
/

    For detailed information about the parameters, see EXPORT_DATA Procedure.

    For detailed information about the available format parameters you can use with DBMS_CLOUD.EXPORT_DATA, see DBMS_CLOUD Package Format Options for EXPORT_DATA.

    The parameters are:

    • file_uri_list: is a comma delimited list of the export file(s). Use of wildcard and substitution characters is not supported in the file_uri_list.

    • format: specifies the required type parameter. The valid values are json, xml, and csv.

    • query: specifies a SELECT statement so that only the required data is exported. The query determines the contents of the dump file(s).

    Note

    The DBMS_CLOUD.EXPORT_DATA procedure creates the dump file(s) that you specify in the file_uri_list. The procedure does not overwrite files. If a dump file in the file_uri_list exists, DBMS_CLOUD.EXPORT_DATA generates another file with a unique name. DBMS_CLOUD.EXPORT_DATA does not create directories.

    For detailed information about the parameters, see EXPORT_DATA Procedure.

Notes for exporting with DBMS_CLOUD.EXPORT_DATA:

  • The query parameter that you supply can be an advanced query, if required, such as a query that includes joins or subqueries.

  • Specify the format parameter with the compression option to compress the output files.

Export Data as JSON a Directory

Shows the steps to export table data from your Autonomous Database to a directory as JSON data by specifying a query.

  1. Connect to your Autonomous Database instance.

    See Connect to Autonomous Database for more information.

  2. Create a directory.

    For example:

    CREATE DIRECTORY export_dir AS 'export_dir';
    See Create a Directory for more information.
  3. Run DBMS_CLOUD.EXPORT_DATA and specify the format parameter type with the value json to export the results as JSON files to a directory. Do not include the credential parameter when sending output to a directory.
    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.dmp',
    format => json_object('type' value 'json'),
    query => 'SELECT * FROM sales'
 );
END;
/

    When record delimiters include escape characters, such as \r\n or \t, enclose the record delimiters in double quotes. For example, to use the record delimiter \r\n, enclose the value in double quotes:"\r\n". 

    BEGIN
  DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.dmp',
    query => 'SELECT * FROM sales',
    format => JSON_OBJECT('type' value 'json', 'recorddelimiter' value '"\r\n"' format json));
END;
/

    The directory name is case-sensitive when the directory name is enclosed in double quotes. For example:

    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => '"export_dir":sales.dmp',
    format => json_object('type' value 'json'),
    query => 'SELECT * FROM sales'
 );
END;
/

    For detailed information about the parameters, see EXPORT_DATA Procedure.

    For detailed information about the available format parameters you can use with DBMS_CLOUD.EXPORT_DATA, see DBMS_CLOUD Package Format Options for EXPORT_DATA.

    The parameters are:

    • file_uri_list: is a comma delimited list of the export file(s). Use of wildcard and substitution characters is not supported in the file_uri_list.

    • format: specifies the required type parameter. The valid values are json, xml, and csv.

    • query: specifies a SELECT statement so that only the required data is exported. The query determines the contents of the dump file(s).

    Note

    The DBMS_CLOUD.EXPORT_DATA procedure creates the dump file(s) that you specify in the file_uri_list. The procedure does not overwrite files. If a dump file in the file_uri_list exists, DBMS_CLOUD.EXPORT_DATA generates another file with a unique name. DBMS_CLOUD.EXPORT_DATA does not create directories.

    For detailed information about the parameters, see EXPORT_DATA Procedure.

Notes for exporting with DBMS_CLOUD.EXPORT_DATA:

  • The query parameter that you supply can be an advanced query, if required, such as a query that includes joins or subqueries.

  • Specify the format parameter with the compression option to compress the output files.

Export Data as Parquet to a Directory

Shows the steps to export table data from your Autonomous Database to a directory as Parquet data by specifying a query.

  1. Connect to your Autonomous Database instance.

    See Connect to Autonomous Database for more information.

  2. Create a directory.

    For example:

    CREATE DIRECTORY export_dir AS 'export_dir';
    See Create a Directory for more information.
  3. Run DBMS_CLOUD.EXPORT_DATA and specify the format parameter type with the value json to export the results as Parquet files to a directory. Do not include the credential parameter when sending output to a directory.
    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.parquet',
    format => JSON_OBJECT('type' value 'parquet'),
    query => 'SELECT * FROM sales'
 );
END;
/

    The directory name is case-sensitive when the directory name is enclosed in double quotes. For example:

    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => '"export_dir":sales.parquet',
    format => JSON_OBJECT('type' value 'parquet'),
    query => 'SELECT * FROM sales'
 );
END;
/

    For detailed information about the parameters, see EXPORT_DATA Procedure.

    For detailed information about the available format parameters you can use with DBMS_CLOUD.EXPORT_DATA, see DBMS_CLOUD Package Format Options for EXPORT_DATA.

    The parameters are:

    • file_uri_list: is a comma delimited list of the export file(s). Use of wildcard and substitution characters is not supported in the file_uri_list.

    • format: specifies the required type parameter. The valid values are datapump, json, xml, csv and parquet and it also optionally defines the options you can specify for the export with the ORACLE_DATAPUMP Access Driver.

    • query: specifies a SELECT statement so that only the required data is exported. The query determines the contents of the dump file(s).

    For detailed information about the parameters, see EXPORT_DATA Procedure.

Notes for exporting with DBMS_CLOUD.EXPORT_DATA:

  • The query parameter that you supply can be an advanced query, if required, such as a query that includes joins or subqueries.

  • Specify the format parameter with the compression option to compress the output files.

  • See DBMS_CLOUD Package Oracle Data Type to Parquet Mapping for details on Oracle Type to Parquet Type mapping.

    The following types are not supported or have limitations on their support for exporting Parquet with DBMS_CLOUD.EXPORT_DATA:

    Oracle Type Notes

    BFILE

    Not supported

    BLOB

    Not supported

    DATE

    Supported with the following limitation: DATE format supports only date, month and year. Hour, minute and seconds are not supported.

    See DBMS_CLOUD Package Oracle Data Type to Parquet Mapping for details on NLS format limitations for exporting DATE to Parquet.

    INTERVAL DAY TO SECOND

    Supported and is treated as string internally

    INTERVAL YEAR TO MONTH

    Supported and is treated as string internally

    LONG

    Not supported

    LONG RAW

    Not supported

    NUMBER

    Supported with the following limitations:

    • Can have maximum precision of 38 and scale equal to less than precision.
    • If no precision and scale is provided for the column NUMBER type, by default precision of 38 and scale of 20 is used.
    • Negative scale is not supported for NUMBER types.

    Object Types

    Not supported

    TIMESTAMP

    Supported with the following limitations:

    • If there are multiple columns with different precision, highest precision will be taken.
    • TIMESTAMP WITH TIME ZONE Oracle datatype will use the timestamp only.

    See DBMS_CLOUD Package Oracle Data Type to Parquet Mapping for details on NLS format limitations for exporting TIMESTAMP to Parquet.

Export Data as XML to a Directory

Shows the steps to export table data from your Autonomous Database to Directory as XML data by specifying a query.

  1. Connect to your Autonomous Database instance.

    See Connect to Autonomous Database for more information.

  2. Create a directory.

    For example:

    CREATE DIRECTORY export_dir AS 'export_dir';
    See Create a Directory for more information.
  3. Run DBMS_CLOUD.EXPORT_DATA and specify the format parameter type with the value json to export the results as XML files to a directory. Do not include the credential parameter when sending output to a directory.
    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => 'export_dir:sales.csv',
    format => JSON_OBJECT('type' value 'csv'),
    query => 'SELECT * FROM sales'
 );
END;
/

    The directory name is case-sensitive when the directory name is enclosed in double quotes. For example:

    BEGIN
 DBMS_CLOUD.EXPORT_DATA(
    file_uri_list => '"export_dir":sales.xml',
    format => JSON_OBJECT('type' value 'xml'),
    query => 'SELECT * FROM sales'
 );
END;
/

    For detailed information about the parameters, see EXPORT_DATA Procedure.

    For detailed information about the available format parameters you can use with DBMS_CLOUD.EXPORT_DATA, see DBMS_CLOUD Package Format Options for EXPORT_DATA.

    The parameters are:

    • file_uri_list: is a comma delimited list of the export file(s). Use of wildcard and substitution characters is not supported in the file_uri_list.

    • format: specifies the required type parameter. The valid values are json, xml, and csv.

    • query: specifies a SELECT statement so that only the required data is exported. The query determines the contents of the dump file(s).

    Note

    The DBMS_CLOUD.EXPORT_DATA procedure creates the dump file(s) that you specify in the file_uri_list. The procedure does not overwrite files. If a dump file in the file_uri_list exists, DBMS_CLOUD.EXPORT_DATA generates another file with a unique name. DBMS_CLOUD.EXPORT_DATA does not create directories.

    For detailed information about the parameters, see EXPORT_DATA Procedure.

Notes for exporting with DBMS_CLOUD.EXPORT_DATA:

  • The query parameter that you supply can be an advanced query, if required, such as a query that includes joins or subqueries.

  • Specify the format parameter with the compression option to compress the output files.