creating your mysql database practical design tips and techniques phần 3 ppsx

... focuses on representing data in MySQL. The containers of tables in MySQL, and other products are the databases. It is quite possible to have just one table in a database and thus avoid fully applying ... describing the brand name, the car model number, and the name. Salesperson Period Brand Name Car model number Car model name and year Quantity sold Murray, Dan 2006-01 Fontax 1...

Ngày tải lên: 12/08/2014, 11:20

... overview 9 data naming abbreviations 34 , 35 about 34 consistency 36 designer’s creativity 34 MySQL issues 36 plural form 35 problems 30 -32 table name into a column name 36 data redundancy about 41 drawbacks ... key about 42 using 43 compound key 42 D data access policies 51 application level, security 53 as column name 30 -32 as results 29, 30 as table name 30 -32...

Ngày tải lên: 12/08/2014, 11:20

... Creating your MySQL Database: Practical Design Tips and Techniques A short guide for everyone on how to structure their data and set up their MySQL database tables efciently and easily Marc ... Mumbai www.packtpub.com Creating your MySQL Database: Practical Design Tips and Techniques The popularity of MySQL and phpMyAdmin has brought many non-I...

Ngày tải lên: 12/08/2014, 11:20

... date (and time), a single column can handle it all, although at the UI level, separate entry elds should be displayed for year, month, and day. This is to avoid any possibility of mix-up and ... single instance or row of a table. Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Chapter 3 [ 31 ] Here are the structure and sample values for those tables: C...

Ngày tải lên: 12/08/2014, 11:20

... with the psychology of the designers. Designer's Creativity Programmers and designers usually think of themselves as imaginative, creative people; UI design and data model are the areas ... clear and understandable data structure, proper data elements naming is important. We examined many techniques to apply in order to build consistent table and column names. Simpo PDF Mer...

Ngày tải lên: 12/08/2014, 11:20

... Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Chapter 5 [ 53 ] Security and Privileges There are two ways of considering the security of our data. The rst and most commonly ... example. In this case, special MySQL users should be created that have only the needed rights. MySQL supports an access matrix based on rights on databases, tables, columns,...

Ngày tải lên: 12/08/2014, 11:20

... value *plane_id 30 2 *event_id 1 *start_moment 2008-10-01 end_moment 2008-10 -31 table: reservation_registered_ bags column name sample value *ight_id 34 *passenger_id 130 2 *tag AQ 636 -847 63 Other columns ... Merge and Split Unregistered Version - http://www.simpopdf.com Chapter 6 [ 83 ] table: passenger column name sample value *id 130 2 last_name Smith rst_name Peter passport_i...

Ngày tải lên: 12/08/2014, 11:20

... Changes 32 Pitfalls of the Free Fields Technique 33 Naming Recommendations 34 Designer's Creativity 34 Abbreviations 34 Clarity versus Length: an Art 35 Sufxing 35 The Plural Form 35 Naming ... Consistency 36 MySQL& apos;s Possibilities versus Portability 36 Table Name into a Column Name 36 Summary 37 Chapter 4: Data Grouping 39 Initial List of Tables 39 Rule...

Ngày tải lên: 27/06/2014, 09:20

... <sup> and <sub> for superscripts and subscripts, respectively. Instead, use vertical-align and pick one of the values shown in Table 4 -3. 55 738 6 Ch04.qxd 4/2/04 11:01 AM Page 66 Ł 66 Creating ... color:blue;. 55 738 6 Ch04.qxd 4/2/04 11:01 AM Page 74 Ł 74 Creating Cool Web Sites with HTML, XHTML, and CSS The effects of both word and line spacing are shown in F...

Ngày tải lên: 09/08/2014, 16:20

... N 2 G 7 83 · 1885 9550 G154,5 kW 3. Resistance due to accelerating the linear masses: F 3 G Q · û g · t a kN F 3 G 660 · 1 9,81 · 2 G 33, 6 kN N 3 G F 3 · û η kW N 3 G 33 ,6 · 1 0,9 kW G37 ,33 kW M 3 G N 3 · ... N 2 G 7 83 · 1885 9550 G154,5 kW 3. Resistance due to accelerating the linear masses: F 3 G Q · û g · t a kN F 3 G 36 0 · 2 9,81 · 2 G36,7 kN N 3 G F 3 · û...

Ngày tải lên: 08/08/2014, 12:23