Home Backend Development PHP Tutorial Class 2 for displaying Oracle database records in pages_PHP tutorial

Class 2 for displaying Oracle database records in pages_PHP tutorial

Jul 21, 2016 pm 04:10 PM
oracle Pagination database show of kind Record


//-----------------------------
// Work function
//---- ----------------------------

//Read records
//The main working function, according to the The given conditions read the corresponding records from the table
//The return value is a two-dimensional array, Result[record number][field name]

function ReadList() {

$SQL="SELECT * FROM ".$this->Table." ".$this->Condition." ORDER BY ".$this->Id." DESC";

$stmt = OCIParse($this->LinkId,$SQL);
$bool = OCIExecute($stmt);
if (!$bool) {
echo "Connection failed!";
OCILogoff ($this->LinkId);
exit;
}
else {
$ncols = OCINumCols($stmt);
for ( $i = 1; $i <= $ ncols; $i++ )
$column_name[$i] = OCIColumnName($stmt,$i);
$k=0;

for($j=0;$j<$this ->StartRec+$this->Offset;$j++) OCIFetch($stmt);
for($j=0;$jif(OCIFetch ($stmt)){
$k++;
for($i=1;$i<=$ncols;$i++)
$temp[$column_name[$i]]=OCIResult($stmt ,$i);
$this->Result[]=$temp;
}
else break;
}
$this->Number=$k;

}
OCIFreeStatement($stmt);
return $this->Result;
}
//Read the latest record
//topnum specifies the number of records to be read

function ReadTopList($topnum){

$SQL="SELECT * FROM ".$this->Table." ".$this->Condition." ORDER BY ". $this->Id." DESC";

$stmt = OCIParse($this->LinkId,$SQL);
$bool = OCIExecute($stmt);
if ( !$bool) {
echo "Connection failed! ";
OCILogoff($this->LinkId);
exit;
}
else {
$ncols = OCINumCols($stmt);
for ( $i = 1 ; $i <= $ncols; $i++ )
$column_name[$i] = OCIColumnName($stmt,$i);
$k=0;

for($j=0 ;$j<$topnum;$j++){
if(OCIFetch($stmt)){
$k++;
for($i=1;$i<=$ncols;$i++)
$temp[$column_name[$i]]=OCIResult($stmt,$i);
$this->TopResult[]=$temp;
}
else break;
}
$this->TopNumber=$k;

}
OCIFreeStatement($stmt);
return $this->TopResult;


}
//--------------------------
// Pagination related
//----- -----------------------

//Display the current page and total number of pages
//This function is called after GetPage() .
function ThePage() {
echo "Page".$this->CPages."Page/Total".$this->TPages."Page";
}

//Show the page button
//This function should be called after the GetPage() function
//Display the next page and the previous page, and add the parameters to be passed

function Page( ) {
$k=count($this->PageQuery);
$strQuery=""; //Generate a parameter string to pass
for($i=0;$i<$ k;$i++){
$strQuery.="&".$this->PageQuery[$i][key]."=".$this->PageQuery[$i][value];
}

return $strQuery;
}

function PrePage($strQuery){
$prev=$this->Offset-$this->MaxLine;
if($prev>=0)
echo "<A href=$PHP_SELF?offset=".$prev.$strQuery." class=newslink>Previous page</A>";
else if($this->TheFirstPage!=NULL)
echo "<A href=".$this->TheFirstPage." class=newslink>Previous page</A>";
else echo "Previous page";
}

function NexPage($strQuery){
$next=$this->Offset+$this->MaxLine;
$k=$this ->Total-$this->StartRec;
if($next<$k)
echo "<A href=$PHP_SELF?offset=".$next.$strQuery." class=newslink> Next page</A>";
else
echo "Next page";
}
//------------------ ------------------
// Record grouping
//-------------------- ----------------
//Display grouping
function NumPage() {
$first=($this->CGroup-1)*($this- >PGroup)+1;
$last=($first+$this->PGroup > $this->TPages)? ($this->TPages+1):($first+$this-> ;PGroup);
$pr=($this->CGroup-2>=0)?( ($this->CGroup-2)*($this->PGroup)+1 ):(- 1);
$prev=($pr!=-1)?( ($pr-1)*$this->MaxLine):(0);
$ne=($this-> CGroup*$this->PGroup+1$next=( $ne!=-1)?( ($ne-1)*$this->MaxLine):(0);

$k=count($this->PageQuery);
$strQuery=""; //Generate a parameter string to pass
for($i=0;$i<$k;$i++){
$strQuery.="&".$this-> ;PageQuery[$i][key]."=".$this->PageQuery[$i][value];
}

if($first!=1)
echo "<A href=$PHP_SELF?offset=".$prev.$strQuery." > << </a>";
for($i=$first;$i<$last;$i++) {
if($this->CPages!=$i){
$current=($i-1)*$this->MaxLine;
echo "<A href=$PHP_SELF?offset =".$current.$strQuery." >".$i."</a> ";
}
else echo "<font color=#e00729>".$i."</font> ; ";
}
if($ne!=-1)
echo "<A href=$PHP_SELF?offset=".$next.$strQuery." > >> </ a>";
}

//******end class
}
?>

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/314253.htmlTechArticle//--------------------- ---------- // Work function //-------------------------------- // Read records //Main working function, read the corresponding records from the table according to the given conditions //Return...
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

How to solve the problem of closing oracle cursor How to solve the problem of closing oracle cursor Apr 11, 2025 pm 10:18 PM

The method to solve the Oracle cursor closure problem includes: explicitly closing the cursor using the CLOSE statement. Declare the cursor in the FOR UPDATE clause so that it automatically closes after the scope is ended. Declare the cursor in the USING clause so that it automatically closes when the associated PL/SQL variable is closed. Use exception handling to ensure that the cursor is closed in any exception situation. Use the connection pool to automatically close the cursor. Disable automatic submission and delay cursor closing.

How to create cursors in oracle loop How to create cursors in oracle loop Apr 12, 2025 am 06:18 AM

In Oracle, the FOR LOOP loop can create cursors dynamically. The steps are: 1. Define the cursor type; 2. Create the loop; 3. Create the cursor dynamically; 4. Execute the cursor; 5. Close the cursor. Example: A cursor can be created cycle-by-circuit to display the names and salaries of the top 10 employees.

How to create oracle dynamic sql How to create oracle dynamic sql Apr 12, 2025 am 06:06 AM

SQL statements can be created and executed based on runtime input by using Oracle's dynamic SQL. The steps include: preparing an empty string variable to store dynamically generated SQL statements. Use the EXECUTE IMMEDIATE or PREPARE statement to compile and execute dynamic SQL statements. Use bind variable to pass user input or other dynamic values ​​to dynamic SQL. Use EXECUTE IMMEDIATE or EXECUTE to execute dynamic SQL statements.

What to do if the oracle can't be opened What to do if the oracle can't be opened Apr 11, 2025 pm 10:06 PM

Solutions to Oracle cannot be opened include: 1. Start the database service; 2. Start the listener; 3. Check port conflicts; 4. Set environment variables correctly; 5. Make sure the firewall or antivirus software does not block the connection; 6. Check whether the server is closed; 7. Use RMAN to recover corrupt files; 8. Check whether the TNS service name is correct; 9. Check network connection; 10. Reinstall Oracle software.

How to read the oracle awr report How to read the oracle awr report Apr 11, 2025 pm 09:45 PM

An AWR report is a report that displays database performance and activity snapshots. The interpretation steps include: identifying the date and time of the activity snapshot. View an overview of activities and resource consumption. Analyze session activities to find session types, resource consumption, and waiting events. Find potential performance bottlenecks such as slow SQL statements, resource contention, and I/O issues. View waiting events, identify and resolve them for performance. Analyze latch and memory usage patterns to identify memory issues that are causing performance issues.

How to use triggers for oracle How to use triggers for oracle Apr 11, 2025 pm 11:57 PM

Triggers in Oracle are stored procedures used to automatically perform operations after a specific event (insert, update, or delete). They are used in a variety of scenarios, including data verification, auditing, and data maintenance. When creating a trigger, you need to specify the trigger name, association table, trigger event, and trigger time. There are two types of triggers: the BEFORE trigger is fired before the operation, and the AFTER trigger is fired after the operation. For example, the BEFORE INSERT trigger ensures that the age column of the inserted row is not negative.

See all articles