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doc-exports/docs/dws/dev/dws_04_0254.html
Lu, Huayi a24ca60074 DWS DEVELOPER 811 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2023-01-19 13:37:49 +00:00

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Exporting Data

Procedure

  1. Export data.

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    INSERT INTO [Foreign table name] SELECT * FROM [Source table name];

Examples

  • Example 1: Export data from table product_info_output to a data file through the product_info_output_ext foreign table.
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    INSERT INTO product_info_output_ext SELECT * FROM product_info_output;
    If information similar to the following is displayed, the data has been exported.
    INSERT 0 10
  • Example 2: Export part of the data to a data file by specifying the filter condition WHERE product_price>500.
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    INSERT INTO product_info_output_ext SELECT * FROM product_info_output WHERE product_price>500;
  • The directory to be used for data storage must be empty, or the export will fail.
  • Data of a special type, such as RAW, is exported as a binary file, which cannot be recognized by the import tool. You need to use the RAWTOHEX() function to convert it to the hexadecimal format before export.