First of all, you need to know how the .bak file is generated. Is it a text file or a dump file? If it is a text file, it is relatively simple to process. You can create a table test in library A, copy the .bak data to the test table, and then append the data of the test table to the existing data in library A;
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First of all, you need to know how the .bak file is generated. Is it a text file or a dump file? If it is a text file, it is relatively simple to process. You can create a table test in library A, copy the .bak data to the test table, and then append the data of the test table to the existing data in library A;