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beginning microsoft excel 2010 phần 7

Các tùy chọn Biểu tượng cuối cùng của Bộ cung cấp cho người dùng với một loại lớn của biểu tượng đó để định dạng các mối quan hệ giữa các giá trị, và trong một khoảng cách (hình 4-119):Chương 4 ■ giữ gìn ngoại hình định dạng bảng tính | CHAPTER 6 SETTING THE TABLE DATABASE FEATURES OF EXCEL 2010 Note also the Table Name field in the Properties button group. It displays a default name for the table which you change by typing a different one and then simply clicking elsewhere. At the Risk of Repeating Yourself The Remove Duplicates Option One classic data entry bugaboo is the risk of entering the same name twice. Working with long multiple lists of names some of which you may have inherited from other sources could well result in name duplication and while you may know that the three John Does in your database are the same person Excel won t. Hence the Remove Duplicates table option in the Tools button group. It s a good one to know provided you know exactly how it works. Note in addition that this feature also works on a range of data that has not been submitted to the Insert Table command. For non-table ranges you can click Data Ribbon Remove Duplicates on the Data Tools button. The command searches for identical values or text in a particular table field or fields and if it finds any deletes all rows containing that value except for the first instance of that value which it leaves in place. Thus if your table has data such as these Figure 6-44 Figure 6-45. Not-quite-duplicate names and you launch a Remove Duplicates search of the Last Name field the row containing Grace Jones record will be deleted and that not may be what you had in mind because Grace Jones is obviously not a mere duplicate of Ed Jones. She s a different person. What you d presumably want to do then is eliminate all duplicates of Ed Jones and if that s your objective you d need to search for duplicates in both the Last and First Name fields at the same time. So let s go with this example and this simple collection of names which contains an obvious duplicate record. In cells L14 N20 type these data and execute the Insert Table command Figure 6-45 . The format you choose doesn t matter 226 CHAPTER 6 SETTING THE TABLE DATABASE .