一个ORACLE分页程序，挺实用的.
2024-05-04 22:16:02
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// How to split the result into pages, like 'limits' in MySQL?
// ===========================================================
// Tutorial by Neil Craig (neilc@netactive.co.za)
// Date: 2001-06-05
// With this example, I will explain paging of database queries where the
// result is more than the developer want to print to the page, but wish to
// split the result into seperate pages.
// The table "SAMPLE_TABLE" accessed in this tutorial has 4 fields:
// PK_ID, FIELD1, FIELD2 and FIELD3. The types don't matter but you should
// define a primary key on the PK_ID field.
$display_rows = 5; // The rows that should be display at a time. You can
// modify this if you like.
// Connect to the Oracle database
putenv("ORACLE_SID=purk");
putenv("ORACLE_HOME=/export/oracle8i");
putenv("TNS_ADMIN=$ORACLE_HOME/network/admin");
$OracleDBConn = OCILogon("purk","purk","lengana.world");
// This query counts the records
$sql_count = "SELECT COUNT(*) FROM SAMPLE_TABLE";
// Parse the SQL string & execute it
$row_count=OCIParse($OracleDBConn, $sql_count);
OCIExecute($row_count);
// From the parsed & executed query, we get the amount of records found.
// I'm not storing this result into a session variable because it allows for
// new records to be shown as it is entered by another user while the result
// is printed.
if (OCIFetch($row_count)) {
$num_rows = OCIResult($row_count,1);
} else {
$num_rows = 0; // If no record was found
}
// Free the resources that were used for this query
OCIFreeStatement($row_count);
// We need to prepare the query that will print the results as a page. I will
// explain the query to you in detail.
// If no page was specified in the url (ex. http://mysite.com/result.php?page=2),
// set it to page 1.
if (empty($page) || $page == 0) {
$page = 1;
}
// The start range from where the results should be printed
$start_range = (($page - 1) * $display_rows) + 1;
