By Bob Villareal
The ebook covers basics comparable to database normalization, question layout, item manipulation and optimization, and customized programming for types and experiences. The reader becomes extra effective, efficient, and a professional in entry VBA. This e-book bargains with getting facts from open air resources and utilizing VBA to make sure information integrity and consistency, which no different entry VBA ebook does. It additionally tackles difficulties in numerous daily events that programmers frequently face.
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Additional resources for Access 2002 Programming by Example
In these rare cases, there are general rules to follow to “break the rules” properly. These rules include documenting every step in the denormalization process and making the necessary adjustments in the application to avoid anomalies and inconsistencies. INCONSISTENT DATA Redundancy creates anomalies and anomalies create inconsistencies. Suppose you have order numbers for which there is no customer. This happens if the Customer table is not linked and a customer number has changed, or if the customer’s information is deleted from an Orders table.
14: When the fields are rearranged, you can rename the tables. Normalizing in Access 21 6. Now double-click the title bar of Table2 and rename it Customers. Using the same method, rename Table1 Orders. Flip-flop the tables horizontally by dragging them with the title bar so that Customers is on the left. Accept the one-to-many relationship that Access has defined for you, and click Next to open Page 6 of the wizard. 7. When page 6 opens, you have a chance to identify primary keys in either table.
6. Click the drop-down box in the Result field and Table: row, change the table to A, and click the Run icon. You should retrieve three records displaying matches B. Joins and Cascades 33 7. After clicking back to Design view, right-click the line between tables and then choose Join Properties to open the Join Properties dialog box. You can also double-click the line, but the line must be thick (like boldface) before you double-click. If it is not thick, right-click. 8. 9). Read what it says in option 2.
Access 2002 Programming by Example by Bob Villareal