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Thread: problem in where clause to check if the date is exist in another table

  1. #1
    Join Date
    Oct 2011
    Posts
    357

    problem in where clause to check if the date is exist in another table

    Hi..

    I have this code for checking if the date(TIMEOUT) is already exist in nrs table:

    Code:
          $EMP_NO = $_GET['EMP_NO'];
          $DATE_NRS = $_GET['DATE_NRS'];
          $TIME_IN = strtotime($_GET['TIME_IN']);
          $TIME_OUT = strtotime($_GET['TIME_OUT']);
          $APPROVE = $_GET['APPROVE']; 
    
    $sql = "SELECT EMP_NO, TIME_IN, TIME_OUT, TOTAL_HOURS, NRS_STATUS FROM nrs WHERE EMP_NO = '$EMP_NO' AND DATE(TIME_OUT) = '$TIME_OUT'";  
    
    //echo $sql;
      $RsOtData = $conn2->Execute($sql);
      
      $numrows = $RsOtData->RecordCount();
      
      
      if($numrows > 0){ 
      echo "<script>alert('Transaction cannot be process')</script>";
     echo "<script>navigate('NRSEmp.php')</script>";   
      }
      else{
      $saverec['EMP_NO'] = $EMP_NO;
      //$saverec['DATE_NRS'] = $DATE_NRS;
      $saverec['TIME_IN'] = $TIME_IN;
      $saverec['TIME_OUT'] = $TIME_OUT;
      $saverec['TOTAL_HOURS'] = $TOTAL_HOURS;
      $saverec['NRS_STATUS'] = $APPROVE;
      
      $insertSQL = $conn2->GetInsertSQL($RsOtData, $saverec);
      $conn2->Execute($insertSQL); 
      }
    now I need revise my query to check also if the date from $TIME_OUT is equal to reg_att .

    for example of reg_att table data:

    EMP_NO = 00000221
    LOGIN = 2012-03-01 05:35:00
    LOGOUT = 2012-03-01 13:35:00
    if Date from $TIMEOUT = date(LOGOUT) if condition will work.

    I trid this query
    PHP Code:
    SELECT n.EMP_NOn.TIME_INn.TIME_OUTTOTAL_HOURSNRS_STATUS FROM nrs n WHERE EMP_NO '00000221' AND DATE(TIME_OUT) = '2012-03-01' OR DATE(TIME_OUT) = (SELECT DATE(LOGOUTFROM reg_att r WHERE r.EMP_NO n.EMP_NO); 
    and i got an error:

    Error Code : 1242
    Subquery returns more than 1 row
    (0 ms taken)


    Thank you

  2. #2
    Join Date
    Feb 2012
    Location
    youTUBE
    Posts
    234

    is it general processing?

    This bit of code
    Code:
    AND DATE(TIME_OUT) = '2012-03-01' 
    OR 
    DATE(TIME_OUT) = (SELECT DATE(LOGOUT)
    is processing both an instance and a set, perhaps you can constrain your set using the same constraints that give you the instance.

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