谁能帮帮我,都急死了,关于tSimpleDataSet.ApplyUpdates

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环境:delphi7+oracle 9
tSimpleDataSet1.commandtext:='select * from meal_user';
tsimpledateset1.open;
tsimpledateset1.edit;
tsimpledateset1.fieldbyname('id_card_no').astring:='aaaa';
tsimpledateset1.post;
tsimpledateset1.applyupdates(-1);
永远都是提示找不到表或视图,不知错在哪里,在下急需你们的帮助,谢谢


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