Help Center/ GaussDB(DWS)/ Data Migration and Synchronization/ Exporting Data/ Exporting Data to OBS/ Exporting CSV/TXT Data to OBS/ Exporting Data
Updated on 2024-03-08 GMT+08:00
View PDF

Exporting Data

Syntax

Run the following command to export data: 
1
 
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. 
    1
    		 
    INSERT INTO product_info_output_ext SELECT * FROM product_info_output;
    If information similar to the following is displayed, the data has been exported. 
    1
    		 
    INSERT 0 10
  • Example 2: Export part of the data to a data file by specifying the filter condition WHERE product_price>500. 
    1
    		 
    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.