ms-access - how to set one field in a table equal to another field in a table in access

Question

I have a table with two fields, IDCopy and ID. I want to copy the value of ID into IDCopy because ID is a number field and I need a second copy of this field as a text field.

I am used to doing things like this on sql server

UPDATE table SET table.IDCopy= table.ID;

But when I try to run that query in access it asks me for the parameter value of ID. What is the syntax for setting one column in a table to another column in Access?

Answer 1

您可以使用CStr()将ID数字转换为文本。当IDCopy是文本并且ID是数字时，这应该有效。

UPDATE [table] SET IDCopy = CStr(ID);

我将表名括起来，因为table它是保留字。

如果 Access 仍然认为ID是此查询的参数，[table]则不包含名为ID.