This document provides code examples for performing basic SQL operations in PHP, including connecting to a database, committing transactions, inserting, updating, deleting records from a table, and executing a simple query to retrieve data from a table. The code examples show how to connect to a database, parse and execute SQL statements using OCI functions, fetch results, and output the data to an HTML table.

1. Crash Course to
SQL in PHP
Will Eder
John Hilliard

2. Database Connection
Database Conection
<?php
$conndb
="(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=orchestra.csela
b.nd.edu)(port=1521))(CONNECT_DATA=(SID=PROJECTS)))";
$c1 = OCILogon("USERID", "USERPASSWORD", $conndb);
Database Disconnection
OCILogoff($c1);
Database Commit
OCICommit($c1);
?>

3. Insert into Table
<?
if($type == 'cust'){
$insert_stmt = OCIParse($c1,"insert into CUSTOMER
values('$ID','$Name','$City','$Country','$BegBal','$CurrBal')");
OCIExecute($insert_stmt);
?>

4. Update Table
<?
$update_stmt = OCIParse($c1,"update CUSTOMER
set cust_name='".$cust."',
city='".$city."',
country='".$country."',
beg_bal=".$beg_bal.",
cur_bal=".$cur_bal."
where cust_id=".$cid);
$print_stmt = "Customer $cust successfully updated.";
OCIExecute($update_stmt);
OCICommit($c1);
?>

5. Delete Item from Table
<?
$stmtdelete = OCIParse($c1,"delete from CUSTOMER
where cust_id=".$cid);
OCIExecute($stmtdelete);
OCICommit($c1);
?>

6. Simple Table Query
<td align="left" bgcolor="red">
<?
if($type == 'cust') {
$q1 = "select * from CUSTOMER";
$s1 = OCIParse($c1,$q1);
OCIDefineByName($s1,"CUST_ID",$cust_id);
OCIDefineByName($s1,"CUST_NAME",$cust_name);
OCIDefineByName($s1,"CITY",$city);
OCIDefineByName($s1,"COUNTRY",$country);
OCIDefineByName($s1,"BEG_BAL",$beg_bal);
OCIDefineByName($s1,"CUR_BAL",$cur_bal);
OCIExecute($s1);
?>
<table><h2 align="center">Customer Table</h2>
<tr>
<th align="left">ID</th> <th align="left">Name</th> <th align="left">City</th>
<th align="left">Country</th> <th align="left">Beginning Bal.</th> <th align="left">Current
Bal.</th>
</tr>
<?
while(OCIFetch($s1)){
?>
<tr>
<td><? print("$cust_id"); ?></td><td><? print("$cust_name"); ?></td><td><? print("$city"); ?></td>
<td><? print("$country"); ?></td><td><? print("$beg_bal"); ?></td><td><? print("$cur_bal"); ?></td>
</tr>
<? } ?></table></td>