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When ibatis-Mysql adds A new data entry to table A, field B of Table B increases or decreases according to the value of field a of Table.

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When using ibatis and mysql and excel to import Table A, table A has a monthly repayment amount of field A, and Table B has A total amount of field B. _ Two tables are associated with leleid _. Insert A new row of data in Table A, and the total value of field B of A data entry in Table B is updated. How can I implement this function in Action or SQL statements? ibatismysql data

When using ibatis and mysql and excel to import Table,
Table A has the monthly repayment amount of field a, and Table B has the total amount of field B. _ Two tables are associated with leleid _.
Insert A new row of data in Table A, and the total value of field B of A data entry in Table B is updated.
How can I implement this function in Action or SQL statements?

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