Dynamic Prepared statement--pls help

I need to create a prepared statement where i do not know how many parameters( or arguments i.e " ? ") will be passed. The arguments are decided dynamically while runtime...as in i may pass only a single argument or many.
example:
select * from employee_table where employee_id in (?,?....)
in the above query i may only one employee_id or may be more than one.This is decided during run time.I do not want to run a for loop for the number of employee is as this will cause performance issue. can anybody please tell me how these arguments can be generated dynamically
thanks 4 ur help in advance

When will you know the emp.Id ?
Reason is Once you get the emp.Id at runtime means you can assign this id to string variable using the comma separator and assigned this string to the query.
Example
String listOfEmpId = "e11,ee23,e55..."; and then use this variable in the query.

Similar Messages

Creating a dynamic prepared statement

the problem:
i have a range of paratmeters coming in from a form and need to be able to create a dynamic query string to go into a prepared statement object.
the problem i have is there are 2 fields year range and year.
if year range is none i need to create the query string as such :
where the value of year can be serached on exactly
str.append("VOLUME_YEAR = ? ");the probelm is if the year range is 5 or year range is 10 i dont know how to maipulate the query string to be able to set the string such that i can then place the year value in the place holder in preparedStatement.setInt(1, year)
how can i create the intial query string ie.- what are the possible things that i can do. - i'm thinking of things like putting some type of between or such type query statement - but not at all sure how the syntax would go - ie. how would i use the year value and how would i create this dynamic part of the query string so that the JDBC regonises it?
thanks for any help.
public String setVolumeYearQuerySt(String year, String yearRange, StringBuffer str){
          String volumeYearQueryString = null;
          Sring doAction= null;
          if (yearRange.equals("None")){str.append("VOLUME_YEAR = ? ");}
          else if(yearRange.equals("5 Years")){doAction = "Nothing";}
          else if (yearRange.equals("10 Years")){doAction = "Nothing";}
          return volumeYearQueryString;
          }

Please do not cross-post:
http://forum.java.sun.com/thread.jspa?threadID=686789&tstart=0
- Saish

Invalid cursor state error while executing the prepared statement

hai friends,
following code showing the invalid cursor state error while executing the second prepared statement.
pls anyone help me
String query = "select * from order_particulars where order_no=" + orderno + " order by sno"; psmt1 = conEntry.prepareStatement(query, ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); rs1 = psmt1.executeQuery(); rs1.last(); intRowCount = rs1.getRow(); particularsdata = new Object[intRowCount][6]; rs1.beforeFirst(); if (intRowCount >= 1) { for (int i = 0; rs1.next(); i++) { particularsdata[0] = i + 1;
particularsdata[i][1] = rs1.getString(3);
particularsdata[i][2] = Double.parseDouble(rs1.getString(4));
rs1.close();
psmt1.close();
query = "SELECT sum(delqty) FROM billdetails,billparticulars WHERE order_no= " + orderno + " and " +
"billdetails.bill_no = billparticulars.bill_no GROUP BY particulars ORDER BY sno";
psmt1 = conEntry.prepareStatement(query, ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
rs1 = psmt1.executeQuery(); //error showing while executing this line

Also .. Why using arrays instead of collections? Shifting the cursor all the way forth and back to get the count is fairly terrible.
With regard to the problem: either there's a nasty bug in the JDBC driver used, or you actually aren't running the compiled class version of the posted code.

How to execute dynamic if statement...

Hi All,
My PL/SQL Blocks looks like this
declare
i_string :='if 3>20 then 1 else 2 end if;' varchar2(100);
begin
end;
Between begin and end i want a piece of code which executes that if statement and sends 2 as output in dbms_output.put_line since 3 is not >20 .Basically i want to know how to execute dynamic if statement.Please help
Thanks,
Preethi

Hi,
i agree with Cyn. Dynamic SQL is often a bad idea. Try to avoid it.
Dynamic PL/SQL is even worse. If you really must do something dynamic, at least try to cast it as SQL rather than PL/SQL.
Does this do what you want?
CREATE OR REPLACE FUNCTION     eval_case
(     in_txt     IN     VARCHAR2
RETURN     NUMBER
DETERMINISTIC
IS
     return_val     NUMBER;
     sql_txt          VARCHAR2 (1000);
BEGIN
     sql_txt := 'SELECT CASE '
          ||           in_txt
          || '         END'
          || ' FROM dual';
     EXECUTE IMMEDIATE sql_txt INTO return_val;
     RETURN     return_val;
END     eval_case;
SHOW ERRORSYou might use the function above like this:
declare
     i_string varchar2(100) :='WHEN 3>20 THEN 1 ELSE 2';
begin
     dbms_output.put_line ( TO_CHAR (eval_case (i_string))
                    || ' = results of eval_case ('''
                    || i_string
                    || ''')'
end;
/

How can I open a cursor for dynamic sql statement

Hi,
I'm facing issues opening a cursor for dynamic sql statement : PLS-00455: cursor 'RESULT1' cannot be used in dynamic SQL OPEN statement.
CREATE OR REPLACE FUNCTION DEMO
(MN_I in VARCHAR)
return AB_OWNER.ABC_Type.NonCurTyp is
RESULT1 AB_OWNER.ABC_Type.NonCurTyp;
sql_stmt VARCHAR2(4000);
BEGIN
sql_stmt := 'SELECT * FROM AB_OWNER.DUN WHERE JZ_I in ('||mn_i||') ORDER BY app.ACC_I';
OPEN RESULT1 FOR sql_stmt;
END IF;
return RESULT1;
END DEMO;
What changes should I make in the code so that it doesn't fail? I can't change the definition of RESULT1 cursor though.

Gangadhar Reddy wrote:
I used SYS REFCURSOR and was able to implement successfully.How many times did you run this successful implementation that does not use bind variables?
Because this is what will happen when it runs a lot.
http://download.oracle.com/docs/cd/E11882_01/server.112/e17766/e2100.htm#sthref1874
http://forums.oracle.com/forums/search.jspa?q=%2BORA-04031%20%2Bbind&objID=c84&dateRange=all&rankBy=10001&start=30
And you will have to regularly restart the server, or possibly slightly less invasive, flush the shared pool.
Flushing Shared Pool regularly
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1516005546092
>
Ok, this is an easy one to diagnose.
You are not using bind variables. This is terrible. Flushing the shared pool is a bad
solution -- you are literally killing the performance on your box by not using them.
If I was to write a book on how to build non scalable applications in Oracle, this
would be the first and last chapter. This is a major cause of performance issues and a
major inhibitor of scalability in Oracle. The way the Oracle shared pool (a very
important shared memory data structure) operates is predicated on developers using bind
variables. If you want to make Oracle run slowly, even grind to a total halt just
refuse to use them.
>
But, please feel free to go ahead with this successful implementation.
I just hope anyone else who reads this doesn't make the same mistake.

Prepared statement help... pls...

hey all... need help... this prepared statement is driving me mad... keeps throwing an error in my servlet.... can somebody pls help
     PreparedStatement updateWiki = con.prepareStatement("UPDATE sportinfo SET pageinfo,parent = (?,?) WHERE sport LIKE ? ");
          updateWiki.setString(1, wikipage);
          updateWiki.setString(2, parent);
          updateWiki.setString(3, sport);
          updateWiki.executeUpdate();
am i missing something???
thanks keith

1. What is the error? Please post it.
2. Try using the query like:
UPDATE sportinfo SET pageinfo=?,parent=? WHERE sport LIKE ?
and see if it still fails.

Beginner question about prepared statements...PLEASE help! :-)

First let me say thanks for the assistance. This is probably really easy to do, but I'm new to JSP and can't seem to figure it out.
I want to dynamically populate a table that shows whether a particular person has an appointment at a given date and time with a user. To do this, I want to query the MySQL database for the lastname of the person with the appointment that occurs with the user at the year, month, date, and time, in question.
THE CODE BELOW DOESN'T WORK (obviously) BUT SOMEWHAT ILLUSTRATES WHAT I'M TRYING TO ACCOMPLISH:
<%
Driver DriverTestRecordSet = (Driver)Class.forName(MM_website_DRIVER).newInstance();
Connection ConnTestRecordSet = DriverManager.getConnection(MM_website_STRING,MM_website_USERNAME,MM_website_PASSWORD);
PreparedStatement StatementTestRecordSet = ConnTestRecordSet.prepareStatement("SELECT lastname FROM appts_pid1 WHERE user_id='<%=(((Recordset1_data = Recordset1.getObject(user_id))==null || Recordset1.wasNull())?"":Recordset1_data)%>' AND year='<%= yy %>' AND month='<%= months[mm] %>' AND date='<%= dates[dd] %>' AND appttime='16:15:00'");
ResultSet TestRecordSet = StatementTestRecordSet.executeQuery();
boolean TestRecordSet_isEmpty = !TestRecordSet.next();
boolean TestRecordSet_hasData = !TestRecordSet_isEmpty;
Object TestRecordSet_data;
int TestRecordSet_numRows = 0;
%>
The real problem comes in the prepared statement portion. If I build the prepared statement with static values like below, EVERYTHING WORKS GREAT:
PreparedStatement StatementTestRecordSet = ConnTestRecordSet.prepareStatement("SELECT lastname FROM appts_pid1 WHERE user_id='1' AND year='2002' AND month='October' AND date='31' AND appttime='16:15:00'");
But when I try to use dynamic values, everything falls apart. It's not that the values aren't defined, I use the user_id, year <%= yy %>, month <%= months[mm] %>, etc. elsewhere on the page with no problems. It's just that I can't figure out how to use these dynamic values within the prepared statement.
Thanks for reading this far and thanks in advance for the help!!!!

Hi PhineasGage
You are little bit wrong in your
your preparedStatement.
Expression tag within scriptlet tag is invalid.
Whenever you are appending the statement with
expression tag, append it with "+" and remove
expression tag.
Hopefully it will work
ThanksThanks for the response!
I know that the expression tag within scriptlet tag is invalid. I just need a workaround for what I want to do.
I'm unclear what you mean by "Whenever you are appending the statement with expression tag, append it with a "+" and remove expression tag".
Could you give an example?
In the meantime, I've been trying to digest the docs on prepared statements and have changed the code to look like:
PreparedStatement StatementTestRecordSet = ConnTestRecordSet.prepareStatement("SELECT lastname FROM appts_pid1 WHERE user_id= ? AND year= ? AND month= ? AND date= ? AND appttime='13:15:00'");
StatementTestRecordSet.setInt(1,1);
StatementTestRecordSet.setInt(2,2002);
StatementTestRecordSet.setString(3,"October");
StatementTestRecordSet.setInt(4,31);
Again, WITH THE STATIC VALUES, THIS WORKS FINE...but when I try to use expressions or variables like below, things don't work:
StatementTestRecordSet.setInt(2,<%= yy %>);
Obviously, I'm doing something wrong, but there has to be a way to use variables within the prepared statement.
ALSO, the values are being passed to this page via URL in the form:
samplepage?user_id=1&year=2002&month=October&date=31
Based upon this information, is there another way (outside of stored procedures in the db) to do what I want to do? I'm open to ideas.

Can any body Help me to prepare statement

I want to provide dynamic table name for preparestatement that i just pass table name every time and it pass me total number in that table.
I create this prepare statement
PreparedStatement prepStmt=conn_.prepareStatement("select count(*) Total from ?");
prepStmt.setString(1,"new");
but it is giving error
[JDBC SQL Server Driver] Line 1: Incorrect syntax near 'new'.
Any body can help me??
I will appreciate.

In PreparedStatement, the setString method adds quotes at the start and at the end of your String.
So your request :
select count(*) Total from ?
is interpreted :
select count(*) Total from 'new'
One possible solution is to pass your tablename parameter directly in the precompiled request :
String myTableName = "new";
PreparedStatement prepStmt=conn_.prepareStatement("select count(*) Total from "+myTableName);
In your database, you will store as many precompiled Statement as you will call this method with different parameters.
Hope it helps !

Preparing Dynamic SQL statement for inserting in Pro*C

Hi Friends,
From quite some time i am struggling writing Dynamic SQL statement for dynamic insert and update in Pro*C.
Can somebody go through my code and suggest me the rigth way of doing.
Right now it throws an error saying " Error while updating ORA-00904: invalid column name "
Please help me.
Girish.
int main()
EXEC SQL BEGIN DECLARE SECTION;
char *uid ="scott/tiger";
static char sqlstmt[129];
struct /* DEPT record */
int dept_num;
char dept_name[15];
char location[14];
} dept_rec;
EXEC SQL END DECLARE SECTION;
EXEC SQL WHENEVER SQLERROR DO sql_error();
EXEC SQL CONNECT :uid;
dept_rec.dept_num = 50;
strcpy(dept_rec.dept_name,"ADMIN");
strcpy(dept_rec.location,"IN");
strcpy(sqlstmt,"UPDATE dept set DNAME = dept_rec.dept_name where DEPTNO = dept_rec.dept_num");
EXEC SQL EXECUTE IMMEDIATE:sqlstmt;
EXEC SQL COMMIT;
exit(0);
void sql_error()
printf("\nError while updating %s",sqlca.sqlerrm.sqlerrmc);
EXEC SQL ROLLBACK;
}

A bit rusty here but this is how I see it.
Think of it this way ..
all Oracle is going to see is:
UPDATE dept set DNAME = dept_rec.dept_name where DEPTNO = dept_rec.dept_num
Its NOT going to know what dept_rec.dept_name is or dept_rec.dept_num is ..
it doesnt go back and fill in those values.
You need something like
strcpy(sqlstmt,"UPDATE dept set DNAME = \"");
strcat(sqlstmt,dept_rec.dept_name);
strcat(sqlstmt,"\" where DEPTNO = ");
strcat(sqlstmt,dept_rec.dept_num);
printf(sqlsmt); # Just to be sure the update statement look right during testing.

Select statement issue- urgent pls help

Hi
The following select statement is always failed, even LIKP table has data. pls help me
LOOP AT LT_VBRP.
    IF LV_KEEP_VGBEL <> LT_VBRP-VGBEL.
      LV_KEEP_VGBEL = LT_VBRP-VGBEL.
      CLEAR LIKP.
      SELECT single VBELN TRAID TRATY VERUR BOLNR LFDAT
      FROM LIKP INTO
      (LIKP-VBELN,LIKP-TRAID,LIKP-TRATY,LIKP-VERUR,LIKP-BOLNR,LIKP-LFDAT)
        WHERE BOLNR = LT_VBRP-VGBEL.
      IF SY-SUBRC = 0.
        LV_ASN_FOUND = 'X'.
      ELSE.
        CLEAR LV_ASN_FOUND.
      ENDIF.
    ENDIF.
    MOVE-CORRESPONDING LT_VBRP TO LT_LIPOV.
    IF LV_ASN_FOUND = 'X'.
      LT_LIPOV-VBELN    = LIKP-VBELN.             "ASN #
      LT_LIPOV-LFDAT    = LIKP-LFDAT.
     lt_lipov-verur    = likp-verur.
      LT_LIPOV-BOLNR    = LIKP-BOLNR.             "DDL#
      LT_LIPOV-KOMAU    = LIKP-VBELN.
get the ASN line number details.
      SELECT VBELN POSNR MATNR ERDAT LFIMG ERNAM WERKS VGBEL VGPOS FROM LIPS INTO
      TABLE LT_LIPOV
       WHERE VBELN = LIKP-VBELN.
    ELSE.
      CLEAR LT_REP-VBELN.
      CLEAR LT_REP-LFDAT.
      CLEAR LT_REP-VERUR.
      CLEAR LT_REP-BOLNR.
      LT_REP-KOMAU = LT_VBRP-VBELN.             "Inv no
      LV_MESSAGE = TEXT-504.
      PERFORM CREATE_REPORT_RECORD_LIN01.
      LT_REP-LINE_COLOUR = 'C610'. " red Intensified
    ENDIF.
    APPEND LT_REP.
    APPEND LT_LIPOV.
    CLEAR LT_LIPOV.
    CLEAR LT_REP.
ENDLOOP.

Hi Kumar....
if statement should not be like ..
if lv_keep_vgbel lt_vbrp-vgbel.
Should be like this if lv_keep_vgbel = lt_vbrp-vgbel.
and try to use work area and table to select and loop the data...
Have YOu checked whether da data in it_vbrp...
there few error in way You are writing...
And one more thing in the table LIKP the field BOLNR is 35 Char and VGBEL of VBRP is 10 char ...and your are equalling that to extract the data which will not happen even..
So before select statement change VBRP-VGBEL as 35 char varible by using like this
data : v_vgbel type likp-bolnr.
loop at lt_vbrp.
if lv_keep_vgbel lt_vbrp-vgbel. " Why did you right the statement like this
    if lv_keep_vgbel = lt_vbrp-vgbel.
        clear likp.
            call function 'CONVERSION_EXIT_ALPHA_INPUT'
              exporting
                input = lt_vbrp-vgbel
              importing
                output = v_vgbel.
              select single vbeln traid traty verur bolnr lfdat
                                                  from likp into
                                                 (likp-vbeln,likp-traid,likp-traty,likp-verur,likp-bolnr,likp-lfdat)
                                                  where bolnr = v-vgbel.
regards,
sg
Edited by: Suneel Kumar Gopisetty on May 26, 2008 4:41 AM

Dynamically obtain parameter count for a prepared statement

Hi JDBC Gurus,
Given a prepared statement, is there a way to figure out the parameter count at runtime? I need this info. to prompt the user for parameter values at the right time from my GUI tool. Any help will be greatly appreciated.

i don't know of any way to do this put perusing through the API i am wondering what the getMetaData method of PreparedStatement is supposed to do. it says returns the meta data of a ResultSet's columns but i think it could contain info about the parameters for the PreparedStatement. i guess i just don't see why that method is there... anyone?

Help changing to prepared statements for mysqli

I am trying to change previously working php pages from mysql to mysqli using prepared statements.
I am having problems with an error message.
Basically the page I have just changed produces a set of database results depending on list menu and check box criteria from user input. I run 2 queries, one to find the total number of records, and the other to retrieve the required subset for pagination. All works fine. However if there are no actual results found from the requested input my php script then uses an includes file which basically runs the same 2 queries but with the user criteria narrowed down so that similar options are presented to the user. This is where my problem lies, for some unknown to me reason the second set of queries is producing no results and an error:
'Attempt to read a row while there is no result set associated with the statement'
If I run the second set of queries without running the first set then the second set works fine so I know that it is not the statements themselves but something in my new code. How can the first set of queries be affecting the results of the second set?
Here is the code below which produces the first 2 queries that work, and below it the same code for the second 2 queries (which is from an 'Includes' file and is the same code exactly except the EXPECTED parameters $expected have been narrowed down in the expected array and list of params for binding).
//list of possible field input by user
$expected = array('location'   => 'text',
                  'type' => 'text',
                  'beds' => 'text',
                  'price' => 'text',
'nbuild'     => 'int',
'resale'     => 'int',
'coastal'    => 'int',
'seaview'    => 'int',
'rural'      => 'int',
'golf'       => 'int',
'ppool'      => 'int',
'comp'       => 'int',
'garden'     => 'int',
'terrace'    => 'int',
'aircon'     => 'int',
'heating'    => 'int',
'garage'     => 'int',
'telephone' => 'int',
'furnished' => 'int',
'internet'   => 'int',
'dpaid'      => 'int',
'propid'     => 'text');
define('SHOWMAX', 10);
// prepare SQL to get total records
$getTotal = 'SELECT COUNT(*) FROM detailstable JOIN newloctable ON detailstable.location=newloctable.newlocid JOIN typetable ON detailstable.type=typetable.typeid JOIN pricetable ON detailstable.price=pricetable.priceid JOIN bedtable ON detailstable.beds=bedtable.bedid JOIN photossale ON detailstable.detailsid=photossale.propsaleid ';
// Set a flag to indicate whether the query has a WHERE clause
$where = false;
// Loop through the associatiave array of expected search values
foreach ($expected as $var => $type) {
if (isset($_GET[$var])) {
    $value = trim(urldecode($_GET[$var]));
    if (!empty($value)) {
      // Check if the value begins with > or <
      // If so, use it as the operator, and extract the value
      if ($value[0] == '>' || $value[0] == '<') {
        $operator = $value[0];
        $value = ltrim(substr($value, 1));
      } elseif (strtolower($type) != 'like') {
        $operator = '=';
      // Check if the WHERE clause has been added yet
      if ($where) {
        $getTotal .= ' AND ';
      } else {
        $getTotal .= ' WHERE ';
        $where = true;
      // Build the SQL query using the right operator and data type
       $type = strtolower($type);
      switch($type) {
        case 'like':
          $getTotal .= "`$var` LIKE ? ";
          break;
        case 'int':
        case 'double':
        case 'date':
          $getTotal .= "`$var` $operator ? ";
          break;
        default:
        $getTotal .= "`$var` = ? ";
$getTotal .= ' ORDER BY ABS(detailstable.trueprice), bedtable.number, detailstable.propid ASC';
$stmt = $conn->stmt_init();
if ($stmt->prepare($getTotal)) {
$params = array($_GET['location'], $_GET['type'], $_GET['beds'], $_GET['price'], $_GET['nbuild'], $_GET['resale'], $_GET['coastal'], $_GET['seaview'], $_GET['rural'], $_GET['golf'], $_GET['ppool'], $_GET['comp'], $_GET['garden'], $_GET['terrace'],
$_GET['aircon'], $_GET['heating'], $_GET['garage'], $_GET['telephone'], $_GET['furnished'], $_GET['internet'], $_GET['dpaid'], $_GET['propid']);
$params = array_filter($params);
$params = array_values($params);
if (!empty($params)) {
            $types = '';
            foreach($params as $param) {
                // set param type
                if (is_string($param)) {
                    $types .= 's'; // strings
                } else if (is_int($param)) {
                    $types .= 'i'; // integer
                } else if (is_float($param)) {
                    $types .= 'd'; // double
                } else {
                    $types .= 'b'; // default: blob and unknown types
            $bind_names[] = $types;
            for ($i=0; $i<count($params);$i++) {
                $bind_name = 'bind' . $i;
                $$bind_name = $params[$i];
$bind_names[] = &$$bind_name;
call_user_func_array(array(&$stmt,'bind_param'),$bind_names);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($total);
$stmt->fetch();
// sort paging
$totalRecords = $total;
$stmt->free_result();
$stmt->close();
// check that there is at least 1 result and if there is do the second part of the search
// if there is no result then I skip this second bit of code
if($totalRecords > '0') {
// check current page
if (isset($_GET['curPage'])) {
$curPage = $_GET['curPage'];
} else {
$curPage = 0;
// calculate the start row of the subset
$startRow = $curPage * SHOWMAX;
$sql = "SELECT DISTINCT detailsid, trueprice, reduced, offers, `desc`, `propid`, `bathrooms`, `location`, `type`, `price`, `beds`, photossale.photo1, newloctable.newloc,   typetable.style, bedtable.`number` FROM detailstable JOIN newloctable ON detailstable.location=newloctable.newlocid JOIN typetable ON detailstable.type=typetable.typeid JOIN pricetable ON detailstable.price=pricetable.priceid JOIN bedtable ON detailstable.beds=bedtable.bedid JOIN photossale ON detailstable.detailsid=photossale.propsaleid ";
// Set a flag to indicate whether the query has a WHERE clause
$where = false;
// Loop through the associatiave array of expected search values
foreach ($expected as $var => $type) {
if (isset($_GET[$var])) {
    $value = trim(urldecode($_GET[$var]));
    if (!empty($value)) {
      // Check if the value begins with > or <
      // If so, use it as the operator, and extract the value
      if ($value[0] == '>' || $value[0] == '<') {
        $operator = $value[0];
        $value = ltrim(substr($value, 1));
      } elseif (strtolower($type) != 'like') {
        $operator = '=';
      // Check if the WHERE clause has been added yet
      if ($where) {
        $sql .= ' AND ';
      } else {
        $sql .= ' WHERE ';
        $where = true;
      // Build the SQL query using the right operator and data type
       $type = strtolower($type);
      switch($type) {
        case 'like':
          $sql .= "`$var` LIKE ? ";
          break;
        case 'int':
        case 'double':
        case 'date':
          $sql .= "`$var` $operator ? ";
          break;
        default:
        $sql .= "`$var` = ? ";
$sql .= " ORDER BY ABS(detailstable.trueprice), bedtable.number, detailstable.propid ASC LIMIT $startRow," . SHOWMAX;
$stmt = $conn->stmt_init();
if ($stmt->prepare($sql)) {
$nextparams = $params;
if (!empty($nextparams)) {
            $nexttypes = '';
foreach($nextparams as $nextparam) {
                // set param type
                if (is_string($nextparam)) {
$nexttypes .= 's'; // strings
                } else if (is_int($nextparam)) {
$nexttypes .= 'i'; // integer
                } else if (is_float($nextparam)) {
$nexttypes .= 'd'; // double
                } else {
$nexttypes .= 'b'; // default: blob and unknown types
            $newbind_names[] = $nexttypes;
            for ($i=0; $i<count($nextparams);$i++) {
$newbind_name = 'bind' . $i;
$$newbind_name = $nextparams[$i];
$newbind_names[] = &$$newbind_name;
call_user_func_array(array(&$stmt,'bind_param'),$newbind_names);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($detailsid, $trueprice, $reduced, $offers, $desc, $propid, $bathrooms, $location, $type, $price, $beds, $photo1, $newloc, $style, $bednumber);
$numRows = $stmt->num_rows;
If a result was found in the part that checks the numbers of records then the second query is run and displayed using : while ($stmt->fetch()) { ...... to display the results and then I use $stmt->free_result();
$stmt->close();
All fine no problems.
If the first query did not find a result then the second query is skipped and instead the script then uses a php includes file with exactly the same script as above except the expected params are narrowed as below: THIS IS WHEN I GET NO RESULTS – when I do expect to get a result) AND AN ERROR OF :
Attempt to read a row while there is no result set associated with the statement.
Yet if I run the includes file and skip the whole of the above code the code in the includes file find the result no problem. Anyway code below:
$expected = array('location'   => 'text',
                  'type' => 'text',
                  'beds' => 'text',
                  'price' => 'text',
'dpaid'      => 'int',
'propid'     => 'text');
define('SHOWMAX', 10);
// prepare SQL to get total records
$getTotal = 'SELECT COUNT(*) FROM detailstable JOIN newloctable ON detailstable.location=newloctable.newlocid JOIN typetable ON detailstable.type=typetable.typeid JOIN pricetable ON detailstable.price=pricetable.priceid JOIN bedtable ON detailstable.beds=bedtable.bedid JOIN photossale ON detailstable.detailsid=photossale.propsaleid ';
// Set a flag to indicate whether the query has a WHERE clause
$where = false;
// Loop through the associatiave array of expected search values
foreach ($expected as $var => $type) {
if (isset($_GET[$var])) {
    $value = trim(urldecode($_GET[$var]));
    if (!empty($value)) {
      // Check if the value begins with > or <
      // If so, use it as the operator, and extract the value
      if ($value[0] == '>' || $value[0] == '<') {
        $operator = $value[0];
        $value = ltrim(substr($value, 1));
      } elseif (strtolower($type) != 'like') {
        $operator = '=';
      // Check if the WHERE clause has been added yet
      if ($where) {
        $getTotal .= ' AND ';
      } else {
        $getTotal .= ' WHERE ';
        $where = true;
      // Build the SQL query using the right operator and data type
       $type = strtolower($type);
      switch($type) {
        case 'like':
          $getTotal .= "`$var` LIKE ? ";
          break;
        case 'int':
        case 'double':
        case 'date':
          $getTotal .= "`$var` $operator ? ";
          break;
        default:
        $getTotal .= "`$var` = ? ";
$getTotal .= ' ORDER BY ABS(detailstable.trueprice), bedtable.number, detailstable.propid ASC';
$stmt = $conn->stmt_init();
if ($stmt->prepare($getTotal)) {
$params = array($_GET['location'], $_GET['type'], $_GET['beds'], $_GET['price'], $_GET['dpaid'], $_GET['propid']);
$params = array_filter($params);
$params = array_values($params);
if (!empty($params)) {
            $types = '';
            foreach($params as $param) {
                // set param type
                if (is_string($param)) {
                    $types .= 's'; // strings
                } else if (is_int($param)) {
                    $types .= 'i'; // integer
                } else if (is_float($param)) {
                    $types .= 'd'; // double
                } else {
                    $types .= 'b'; // default: blob and unknown types
            $bind_names[] = $types;
            for ($i=0; $i<count($params);$i++) {
                $bind_name = 'bind' . $i;
                $$bind_name = $params[$i];
$bind_names[] = &$$bind_name;
call_user_func_array(array(&$stmt,'bind_param'),$bind_names);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($total);
$stmt->fetch();
// sort paging
$totalRecords2 = $total;
echo $stmt->error;
$stmt->free_result();
$stmt->close();
// there is a result get the subset
if($totalRecords2 > '0') {
// check current page
if (isset($_GET['curPage'])) {
$curPage = $_GET['curPage'];
} else {
$curPage = 0;
// calculate the start row of the subset
$startRow = $curPage * SHOWMAX;
$sql = "SELECT DISTINCT detailsid, trueprice, reduced, offers, `desc`, `propid`, `bathrooms`, `location`, `type`, `price`, `beds`, photossale.photo1, newloctable.newloc,   typetable.style, bedtable.`number` FROM detailstable JOIN newloctable ON detailstable.location=newloctable.newlocid JOIN typetable ON detailstable.type=typetable.typeid JOIN pricetable ON detailstable.price=pricetable.priceid JOIN bedtable ON detailstable.beds=bedtable.bedid JOIN photossale ON detailstable.detailsid=photossale.propsaleid ";
// Set a flag to indicate whether the query has a WHERE clause
$where = false;
// Loop through the associatiave array of expected search values
foreach ($expected as $var => $type) {
if (isset($_GET[$var])) {
    $value = trim(urldecode($_GET[$var]));
    if (!empty($value)) {
      // Check if the value begins with > or <
      // If so, use it as the operator, and extract the value
      if ($value[0] == '>' || $value[0] == '<') {
        $operator = $value[0];
        $value = ltrim(substr($value, 1));
      } elseif (strtolower($type) != 'like') {
        $operator = '=';
      // Check if the WHERE clause has been added yet
      if ($where) {
        $sql .= ' AND ';
      } else {
        $sql .= ' WHERE ';
        $where = true;
      // Build the SQL query using the right operator and data type
       $type = strtolower($type);
      switch($type) {
        case 'like':
          $sql .= "`$var` LIKE ? ";
          break;
        case 'int':
        case 'double':
        case 'date':
          $sql .= "`$var` $operator ? ";
          break;
        default:
        $sql .= "`$var` = ? ";
$sql .= " ORDER BY ABS(detailstable.trueprice), bedtable.number, detailstable.propid ASC LIMIT $startRow," . SHOWMAX;
$stmt = $conn->stmt_init();
if ($stmt->prepare($sql)) {
$nextparams = $params;
if (!empty($nextparams)) {
            $nexttypes = '';
foreach($nextparams as $nextparam) {
                // set param type
                if (is_string($nextparam)) {
$nexttypes .= 's'; // strings
                } else if (is_int($nextparam)) {
$nexttypes .= 'i'; // integer
                } else if (is_float($nextparam)) {
$nexttypes .= 'd'; // double
                } else {
$nexttypes .= 'b'; // default: blob and unknown types
            $newbind_names[] = $nexttypes;
            for ($i=0; $i<count($nextparams);$i++) {
$newbind_name = 'bind' . $i;
$$newbind_name = $nextparams[$i];
$newbind_names[] = &$$newbind_name;
call_user_func_array(array(&$stmt,'bind_param'),$newbind_names);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($detailsid, $trueprice, $reduced, $offers, $desc, $propid, $bathrooms, $location, $type, $price, $beds, $photo1, $newloc, $style, $bednumber);
$numRows = $stmt->num_rows;
Again here I would then display the results before closing and freeing the stmt or display a message to say there were no results found from the criteria. But instead I get the error message and echoing the value of $totalRecords2 is empty.
I have been pulling my hair out for days and days over this and as it is one of the first pages I am converting from mysql to mysqli I wonder if I am missing something very obvious to someone with more experience with the code. I will be very grateful for any help, thank you in advance.

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Prepared statement help

Hello all!
I am trying to get this prepared statement to work but am getting an error that I cant understand.
Basically I have a class file that the ps resides in. I am calling the ps from a jsp.
Here is the code:
public void recordUsage(String userid, String ipaddress, String page, String filename)
       String insertStatement = "INSERT INTO usageLog(userId,ipAddress, localTime, page, fileName) VALUES(?,?,?,?,?)";
            try
            {   java.util.Date currentDate=new java.util.Date();//Create a date object for the timestamp
                java.sql.Timestamp ts=new java.sql.Timestamp(currentDate.getTime());//Create the timestamp from the above date object.
                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                objConn = java.sql.DriverManager.getConnection("jdbc:odbc:sensorWeek","","");
                PreparedStatement ps = objConn.prepareStatement(insertStatement);
                ps.setString(1, userid);
                ps.setString(2, ipaddress);
                ps.setTimestamp(3, ts);
                ps.setString(4, page);
                ps.setString(5, filename);
                ps.executeUpdate();
                objConn.commit();
                ps.close();
                objConn.close();
                System.out.println("recordusage method called");
            catch (SQLException s)
                System.err.println("DataBase PROBLEM");
                s.printStackTrace();
            catch (Exception e)
                    System.err.println("Error in recordUsage method");
                    e.printStackTrace();
}Here is the error generated:(I hate to dump this on you)
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: sensorPac.methodClass.record(Ljava/lang/String;Ljava/lang/String;)V
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
     at java.lang.Thread.run(Thread.java:534)
root cause
javax.servlet.ServletException: sensorPac.methodClass.record(Ljava/lang/String;Ljava/lang/String;)V
     at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:536)
     at org.apache.jsp.download_jsp._jspService(download_jsp.java:93)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
     at java.lang.Thread.run(Thread.java:534)
TIA!!

And what makes you think that the above code is causing the problem?

How to use prepared statement - For Everyone Help

public String count()
int count = 0;
String fetchsize = "";
try
Connection conn = getOADBTransaction().getJdbcConnection();
Statement statement = conn.createStatement();
String Query = "select count(*) count from fnd_lookups where lookup_type like 'SAPE_BILL_TO_SHIP_TO_UPDATE'";
ResultSet resultset = statement.executeQuery(Query);
while (resultset.next())
count = (int)resultset.getInt("count");
fetchsize = ""+count;
catch(Exception e)
return fetchsize;
}

Hi,
we can use prepare statement in Co....
import java.sql.PreparedStatement;
import java.sql.ResultSet;
try
PreparedStatement prpdStmt1 = am.getOADBTransaction().getJdbcConnection().prepareStatement("select full_name from per_all_people_f where person_id='"+empid+"' ");
ResultSet rs=prpdStmt1.executeQuery(); //Cursor fetch row
while(rs.next())
empname=rs.getString(1);
catch(Exception e)
System.out.println("Exception is"+e.getMessage());
t1.setValue(pageContext,empname);
Thanks
nani

Prepared statement - setDate(index, sql.Date, Cal) Help!

Hi everyone, I'm creating a form to query an Oracle table. I'm setting up the search criteria which includes a start and end date. (in this example I've just used the start date)
I get all the search parameters into my JSP and I created the following Calendar objects:
// Calendar creation
Calendar startCal = Calendar.getInstance();
startCal.set(start_year, start_month, start_day, start_hour, start_minute);
Calendar endCal = Calendar.getInstance();
endCal.set(end_year, end_month, end_day, end_hour, end_minute);
//define a sql.Date value for start and end date
java.sql.Date startDate = null;
java.sql.Date endDate = null;I then create a string that contains my SQL statement:
String sqlStmt = "select dateValue, value3 from someTable where dateValue >= ? and value2 = ?";In my Prepared Statement I pass in the following information:
ps = c.prepareStatement(sqlStmt);
ps.setDate(1, startDate, startCal);
ps.setString(2, searchValue);My question is the following - I define the hour and minute in my Cal object - will that information get passed into my "startDate" sql.Date object? According to the API it should work (at least that's my understading of it):
http://java.sun.com/j2se/1.4.2/docs/api/java/sql/PreparedStatement.html#setDate(int,%20java.sql.Date,%20java.util.Calendar)
My search does not blow up or report any errors but it never finds a match - even when I put in parameters that I know are a match.
Any feedback is appreciated.

I think I got it. my java.sql.Date can't be null.
java.sql.Date startDate = null;
java.sql.Date endDate = null;needs to be:
java.util.Date startCalendarDate = startCal.getTime();
java.util.Date endCalendarDate = endCal.getTime();
java.sql.Date startDate = new java.sql.Date(startCalendarDate.getTime());
java.sql.Date endDate = new java.sql.Date(endCalendarDate.getTime());

Dynamic Prepared statement--pls help

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