there is a DC_CommodityItem table, and the primary key is CommodityItemID
. I want to delete one of the data. If there are other tables that use CommodityItemID as a foreign key, I may report an error
how to find a table that uses CommodityItemID as a foreign key?
tried the method found by Baidu and suggested that the table does not exist:
Table KEY_COLUMN_USAGE is in the information_schema library, which can only be obtained by specifying the library name.
SELECT * FROM information_schema.KEY_COLUMN_USAGE WHERE REFERENCED_TABLE_SCHEMA='' AND REFERENCED_TABLE_NAME='DC_CommodityItem' AND REFERENCED_COLUMN_NAME='CommodityItemID';the data obtained is including foreign keys
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