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Coldfusion and PHP introduction

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1 Coldfusion and PHP introduction
University of California, Berkeley School of Information IS 257: Database Management IS 257 – Fall 2009

2 Lecture Outline Review ColdFusion PHP More on MySQL and SQL
Databases for Web Applications – Overview ColdFusion DiveShop in ColdFusion PHP DiveShop in PHP More on MySQL and SQL IS 257 – Fall 2009

3 Lecture Outline Review ColdFusion PHP More on MySQL and SQL
Databases for Web Applications – Overview ColdFusion DiveShop in ColdFusion PHP DiveShop in PHP More on MySQL and SQL IS 257 – Fall 2009

4 Dynamic Web Applications 2
Server database CGI DBMS Web Internet Files Clients IS 257 – Fall 2009

5 Server Interfaces Database Web Server Web Application Server Web DB
HTML JavaScript DHTML CGI API’s ColdFusion PhP Perl Java ASP SQL ODBC Native DB interfaces JDBC Native DB Interfaces Adapted from John P Ashenfelter, Choosing a Database for Your Web Site IS 257 – Fall 2009

6 Web Application Server Software
ColdFusion PHP ASP All of the are server-side scripting languages that embed code in HTML pages IS 257 – Fall 2009

7 Lecture Outline Review ColdFusion PHP
Databases for Web Applications – Overview ColdFusion DiveShop in ColdFusion PHP DiveShop in PHP Introduction to ORACLE and SQL-Plus IS 257 – Fall 2009

8 Web Application Server Software
ColdFusion PHP ASP All of the are server-side scripting languages that embed code in HTML pages IS 257 – Fall 2009

9 ColdFusion Developing WWW sites typically involved a lot of programming to build dynamic sites e.g. Pages generated as a result of catalog searches, etc. ColdFusion was designed to permit the construction of dynamic web sites with only minor extensions to HTML through a DBMS interface IS 257 – Fall 2009

10 ColdFusion Started as CGI Split into cooperating components
Drawback, as previously discussed, is that the entire system is run for each cgi invocation Split into cooperating components Windows service -- runs constantly Server modules for 4 main Web Server API (glue that binds web server to ColdFusion service) {Apache, ISAPI, NSAPI, WSAPI} Special CGI scripts for other servers IS 257 – Fall 2009

11 What ColdFusion is Good for
Putting up databases onto the Web Handling dynamic databases (Frequent updates, etc) Making databases searchable and updateable by users. IS 257 – Fall 2009

12 Requirements Unix or Windows systems Install as SuperUser
Databases must be defined via “data source names (DSNs) by administrator IS 257 – Fall 2009

13 Requirements and Set Up
Field names should be devoid of spaces. Use the underscore character, like new_items instead of "new items." Use key fields. Greatly reduces search time. Check permissions on the individual tables in your database and make sure that they have read-access for the username your Web server uses to log in. If your fields include large blocks of text, you'll want to include basic HTML coding within the text itself, including boldface, italics, and paragraph markers. IS 257 – Fall 2009

14 Templates Assume we have a database named contents_of_my_shopping_cart.mdb -- single table called contents... Create an HTML page (uses extension .cfm), and before <HEAD>... IS 257 – Fall 2009

15 Templates cont. <CFQUERY NAME= ”cart" DATASOURCE=“contents_of_my_shopping_cart"> SELECT * FROM contents ; </CFQUERY> <HEAD> <TITLE>Contents of My Shopping Cart</TITLE> </HEAD> <BODY> <H1>Contents of My Shopping Cart</H1> <CFOUTPUT QUERY= ”cart"> <B>#Item#</B> <BR> #Date_of_item# <BR> $#Price# <P> </CFOUTPUT> </BODY> </HTML> IS 257 – Fall 2009

16 Templates cont. Contents of My Shopping Cart
Bouncy Ball with Psychedelic Markings 12 December 1998 $0.25 Shiny Blue Widget 14 December 1998 $2.53 Large Orange Widget $3.75 IS 257 – Fall 2009

17 CFIF and CFELSE <CFOUTPUT QUERY= ”cart"> Item: #Item# <BR>
<CFIF #Picture# EQ""> <IMG SRC=“generic_picture.jpg"> <BR> <CFELSE> <IMG SRC="#Picture#"> <BR> </CFIF> </CFOUTPUT> IS 257 – Fall 2009

18 More Templates <CFQUERY DATASOURCE = “AZ2”>
INSERT INTO Employees(firstname, lastname, phoneext) VALUES(‘#firstname#’, ‘#lastname#’, ‘#phoneext#’) </CFQUERY> <HTML><HEAD><TITLE>Employee Added</TITLE> <BODY><H1>Employee Added</H1> <CFOUTPUT> Employee <B>#firstname# #lastname#</B> added. </CFOUTPUT></BODY> </HTML> IS 257 – Fall 2009

19 CFML ColdFusion Markup Language
Read data from and update data to databases and tables Create dynamic data-driven pages Perform conditional processing Populate forms with live data Process form submissions Generate and retrieve messages Perform HTTP and FTP function Perform credit card verification and authorization Read and write client-side cookies IS 257 – Fall 2009

20 ColdFusion Diveshop Examples from Fusion IS 257 – Fall 2009

21 Lecture Outline Review ColdFusion PHP More on ORACLE and SQL-Plus
Databases for Web Applications – Overview ColdFusion DiveShop in ColdFusion PHP DiveShop in PHP More on ORACLE and SQL-Plus IS 257 – Fall 2009

22 PHP PHP is an Open Source Software project with many programmers working on the code. Commonly paired with MySQL, another OSS project Free Both Windows and Unix support Estimated that more than 250,000 web sites use PHP as an Apache Module. IS 257 – Fall 2009

23 PHP Syntax Similar to “C” or Java (note lines end with “;”)
Includes most programming structures (Loops, functions, Arrays, etc.) Loads HTML form variables so that they are addressable by name <HTML><BODY> <?php $myvar = “Hello World”; echo $myvar ; ?> </BODY></HTML> IS 257 – Fall 2009

24 Combined with MySQL DBMS interface appears as a set of functions:
<HTML><BODY> <?php $db = mysql_connect(“localhost”, “root”); mysql_select_db(“mydb”,$db); $result = mysql_query(“SELECT * FROM employees”, $db); Printf(“First Name: %s <br>\n”, mysql_result($result, 0 “first”); Printf(“Last Name: %s <br>\n”, mysql_result($result, 0 “last”); ?></BODY></HTML> IS 257 – Fall 2009

25 Diveshop PHP Examples on Harbinger/People… IS 257 – Fall 2009

26 ASP – Active Server Pages
Another server-side scripting language From Microsoft using Visual Basic as the Language model (VBScript), though Javascript (actually MS Jscript) is also supported Works with Microsoft IIS and gives access to ODBC databases Most commonly used for Access or MS SQL Server IS 257 – Fall 2009

27 ASP Syntax <% SQL="SELECT last, first FROM employees ORDER BY last"
set conn = server.createobject("ADODB.Connection") conn.open “employee" set people=conn.execute(SQL) %> <% do while not people.eof set resultline=people(0) & “, “ & people(1) & “<BR>” Response.Write(resultline) people.movenext loop%> <% people.close %> IS 257 – Fall 2009

28 Lecture Outline Review ColdFusion PHP More on MySQL and SQL
Databases for Web Applications – Overview ColdFusion DiveShop in ColdFusion PHP DiveShop in PHP More on MySQL and SQL IS 257 – Fall 2009

29 Today More on SQL for data manipulation and modification
IS 257 – Fall 2009

30 SELECT Syntax: SELECT [DISTINCT] attr1, attr2,…, attr3 as label, function(xxx), calculation, attr5, attr6 FROM relname1 r1, relname2 r2,… rel3 r3 WHERE condition1 {AND | OR} condition2 ORDER BY attr1 [DESC], attr3 [DESC] IS 257 – Fall 2009

31 SELECT Conditions = equal to a particular value
>= greater than or equal to a particular value > greater than a particular value <= less than or equal to a particular value <> or != not equal to a particular value LIKE ‘%wom_n%’ (Note different wild card from Access) opt1 SOUNDS LIKE opt2 IN (‘opt1’, ‘opt2’,…,’optn’) BETWEEN opt1 AND opt2 IS NULL or IS NOT NULL IS 257 – Fall 2009

32 Aggregate (group by) Functions
COUNT(dataitem) COUNT(DISTINCT expr) AVG(numbercolumn) SUM(numbercolumn) MAX(numbercolumn) MIN(numbercolumn) STDDEV(numbercolumn) VARIANCE(numbercolumn) and other variants of these… IS 257 – Fall 2009

33 Numeric Functions DEGREES(n) EXP(n) FLOOR(n) LN(n) LOG(n,b) MOD(n)
ABS(n) ACOS(n) ASIN(n) ATAN(n) ATAN2(n, m) CEIL(n) COS(n) COSH(n) CONV(n, f-base,t-base) COT(n) DEGREES(n) EXP(n) FLOOR(n) LN(n) LOG(n,b) MOD(n) PI() POWER(n,p) ROUND(n) SIGN(n) SIN(n) SINH(n) SQRT(n) TAN(n) TANH(n) TRUNCATE(n,m) IS 257 – Fall 2009

34 Character Functions returning character values
CHAR(n,…) CONCAT(str1,str2,…) LOWER(char) LPAD(char, n,char2), RPAD(char, n,char2) LTRIM(char, n, cset), RTRIM(char, n, cset) REPLACE(char, srch, repl) SOUNDEX(char) SUBSTR(char, m, n) UPPER(char) IS 257 – Fall 2009

35 Character Function returning numeric values
ASCII(char) INSTR(char1, char2) LENGTH(char) BIT_LENGTH(str) CHAR_LENGTH(str) LOCATE(substr,str) LOCATE(substr,str,pos) and many other variants. IS 257 – Fall 2009

36 Date functions ADDDATE(dt, INTERVAL expr unit) or ADDDATE(dt, days)
ADDTIME(dttm, time) LAST_DAY(dt) MONTH(dt) – YEAR(dt) – DAY(dt) MONTHNAME(dt) NOW() NEW_TIME(d, z1, z2) -- PST, AST, etc. NEXT_DAY(d, dayname) STR_TO_DATE(str,format) SYSDATE() IS 257 – Fall 2009

37 Setting up Diveshop on MySQL
IS 257 – Fall 2009

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