By Steven Roman
I've been utilizing entry and VBA for many years, with none formal education in relational database or programming. during this concise publication, Steven Roman controlled to provide a robust beginning within the concept of relational databases, VBA and DAO.
Armed with this data, I now have the arrogance to dig deeper in those 3 subject matters and research extra complex material.
One draw back even though: i discovered the final a part of the ebook on ADO particularly complicated. Steven Roman prefers DAO to ADO and it shows.
I however supply the booklet five stars, because the first 3 elements of the ebook are stellar.
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Additional info for Access database design and programming
These issues are more subjective than objective and must be dealt with, as a design issue, on an ad hoc basis. In fact, it appears that the best procedure for good database design is to mix eight parts intuition and experience with two parts theory. Hopefully, discussion of normalization has given you a general feel of the issues involved and will provide a good jumping-off place if you decide to study these somewhat complicated issues in greater depth. ) 60 TEAM FLY PRESENTS 61 TEAM FLY PRESENTS Part II: Database Queries Chapter 5.
Also, a table can be indexed on a combination of two or more columns. For instance, if the PUBLISHERS table also included a State column, we could index the table on a combination of City and State, as shown in Figure 3-9. Figure 3-9. Index file between City, State, and Publisher An index on a primary key is referred to as a primary index. Note that Microsoft Access automatically creates an index on a primary key. An index on any other column or columns is called a secondary index. An index based on a key (not necessarily the primary key) is called a unique index , since the indexed column contains unique values.
Note that Microsoft Access automatically creates an index on a primary key. An index on any other column or columns is called a secondary index. An index based on a key (not necessarily the primary key) is called a unique index , since the indexed column contains unique values. 1 Example To view the indexes for a given table in Microsoft Access, open the table in design view, and then choose Indexes from the View menu. For the BOOKS table, you should see a window similar to Figure 3-10 (without the PubTitle entry).