creating your mysql database practical design tips and techniques phần 1 pps

... 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 ... 9 Rule #1 10 Rule #2 10 Simplied Design Technique 10 Case Study 11 Our Car Dealer 11 The System's Goals 12 The Tale of the Too Wide Table 12 Summary 16...

Ngày tải lên: 12/08/2014, 11:20

... 3 Murray, Dan 2006- 01 Fontax 2X12 Wanderer 2006 7 Murray, Dan 2006-02 Fontax 1A8 Mitsou 2007 4 Smith, Peter 2006- 01 Fontax 1A8 Mitsou 2007 1 Smith, Peter 2006- 01 Licorne LKC Gazelle 2007 1 Smith, Peter ... sales: salesperson brand model_number model_name_year qty_2006_ 01 qty_2006_02 Murray, Dan Fontax 1A8 Mitsou 2007 3 4 Murray, Dan Fontax 2X12 Wanderer 2006 7 Smith, Peter Fontax...

Ngày tải lên: 12/08/2014, 11:20

... 67 vehicle table 67 too wide table about 12 example 13 example, phpMyAdmin, used 14 example, problem, examining 15 , 16 need for 13 script, for creating example 14 U unique key about 40 V views about ... 24 data model, building 11 example of data cleaning 27 goal 17 scope 17 , 18 system goals 12 Codd’s rules 10 composite key about 42 using 43 compound key 42 D data a...

Ngày tải lên: 12/08/2014, 11:20

... a specic pattern and also uses formatting characters for legibility. In North America, we have a regional code, an exchange number, and phone number, for example, 418 -11 1-2222; an extension ... only the regional code and extension are separated from the rest into data elements of their own. Moreover, people often enter formatting characters like ( 418 ) 11 1-2222 and expect th...

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 ... variables and their meaning. Nowadays, I see no valid reasons for systematically abbreviating all column and table names; after all, who will understand the meaning of your T1 table or...

Ngày tải lên: 12/08/2014, 11:20

... value *internal_number 412 quantity_cleaning_product 12 Avoiding ENUM and SET MySQL and SQL in general offer what looks like convenient data types: ENUM and SET types. Both types permit us to specify ... 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

... 34 *passenger_id 13 02 web_site_quick_reference KARTYU ticket_number 014 88 417 654 ticket_issued_moment 2007- 01- 01 12:00 booking_agency_id 1 ticket_refundability_id 1 ticket_type_id 1 seat 19 A section_id ... value *airline_id 1 *brand_id 1 *model_id 2 *section_id 1 *seat 19 A The plane_section_seat table describes which seats are located in a specic section of the aircra...

Ngày tải lên: 12/08/2014, 11:20

... 3 Murray, Dan 2006- 01 Fontax 2X12 Wanderer 2006 7 Murray, Dan 2006-02 Fontax 1A8 Mitsou 2007 4 Smith, Peter 2006- 01 Fontax 1A8 Mitsou 2007 1 Smith, Peter 2006- 01 Licorne LKC Gazelle 2007 1 Smith, Peter ... qty_2006_ 01 int (11 ) NOT NULL, qty_2006_02 int (11 ) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1; In the previous statement, while char(40) means a column with 40 characte...

Ngày tải lên: 27/06/2014, 09:20

... Bridge workspace. 03 _14 4763 ch 01. qxp 7 /18 /07 10 :47 PM Page 11 HOW TO USE THIS BOOK Photoshop® CS3: Top 10 0 Simplified® Tips & Tricks includes 10 0 tasks that reveal cool secrets, teach timesaving tricks, and ... that appears, and the Preferences are reset to the defaults. 03 _14 4763 ch 01. qxp 7 /18 /07 10 :47 PM Page 7 Table of Contents Working with Layers, Selection...

Ngày tải lên: 08/08/2014, 20:21

... them: 10 x 10 = Your ad on 10 0 new sites 10 people sign up from each of them: 10 x 10 0 = Your ad on 1, 000 new sites 10 people sign up from each of them: 10 x 1, 000 = Your ad on 10 ,000 ... 10 people sign up from each of them: 10 x 10 ,000 = Your ad on 10 0,000 new sites 10 people sign up from each of them: 10 x 10 0,000 = Your ad on 1, 000,000 new sites...

Ngày tải lên: 09/08/2014, 16:20