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Updating data in a view sql

Large updates become much easier to perform when you understand some of the basic principles of database design.An Access database is not a file in the same sense as a Microsoft Office Word 2007 document or a Microsoft Office Power Point 2007 slide deck.

Read this section if you are new to Access or unfamiliar with the concepts behind relational databases.You use this type of field when you want to display data from a file created in another program.For example, you can display a text file, an Excel chart, or a Power Point slide deck in an OLE Object field.If you format the field to show a list, you can select either Yes or No, True or False, or On or Off from the list, again depending on the format applied to the field.You cannot enter values in the list or change the values in the list directly from a form or table.When you design a database table, you select a data type for each of the fields in that table, a process that helps ensure more accurate data entry.For example, suppose you specify the Number data type for a field because you need to calculate sales figures.Instead, a typical Access database is a a collection of tables, plus a set of objects built around those tables — forms, reports, queries, and so on.In addition, those objects must adhere to a set of design principles or the database will either work poorly or fail altogether.You can enter only currency values in this type of field.Also, you do not have to manually enter a currency symbol.

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