Please, i have this query here:
$query_pag_num = "SELECT COUNT(*) AS count FROM forma";
$result_pag_num = odbc_exec($connection, $query_pag_num) or die(odbc_error());
$row = odbc_fetch_array($result_pag_num);
$count = $row['id'];
The issue is i get this error here:
Undefined index: id where it's: `$count = $row['id'];`
Help please! It won't work without this piece of code here.
I'm using odbc_connect..
Thanks in advance..
your select function will only return 1 column: "count". you are trying to get to column "id"
here is your fixed code
$query_pag_num = "SELECT COUNT(*) AS count FROM forma";
$result_pag_num = odbc_exec($connection, $query_pag_num) or die(odbc_error());
$row = odbc_fetch_array($result_pag_num);
$count = $row['count'];
you do not have any field in your SELECT called 'id'. Try: $count = $row['count'];
Related
guys, I need help, I am using zend-db 2.9 - and I have an sql that need the rand() order, but the result of this query came wrong
my code:
$sql = new Sql($this->dbAdapter);
$select = $sql->select(
['a'=>$this->table]
);
$select->order("RAND() ASC");
$select->limit(1);
$stt = $sql->prepareStatementForSqlObject($select);
$res = $stt->execute();
result is :
SELECT `a`.* FROM `mytable` AS `a` ORDER BY `RAND``(``)` ASC LIMIT 1
how to fix it?
I found the answer fot this: Just Add new Expression("RAND()")
$sql = new Sql($this->dbAdapter);
$select = $sql->select(
['a'=>$this->table]
);
$select->order([new Expression("RAND() ASC")]);
$select->limit(1);
$stt = $sql->prepareStatementForSqlObject($select);
$res = $stt->execute();
I have a query, and I want to get the last ID inserted. The field ID is the primary key and auto incrementing.
I know that I have to use this statement:
LAST_INSERT_ID()
That statement works with a query like this:
$query = "INSERT INTO `cell-place` (ID) VALUES (LAST_INSERT_ID())";
But if I want to get the ID using this statement:
$ID = LAST_INSERT_ID();
I get this error:
Fatal error: Call to undefined function LAST_INSERT_ID()
What am I doing wrong?
That's because that's an SQL function, not PHP. You can use PDO::lastInsertId().
Like:
$stmt = $db->prepare("...");
$stmt->execute();
$id = $db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
lastInsertId() only work after the INSERT query.
Correct:
$stmt = $this->conn->prepare("INSERT INTO users(userName,userEmail,userPass)
VALUES(?,?,?);");
$sonuc = $stmt->execute([$username,$email,$pass]);
$LAST_ID = $this->conn->lastInsertId();
Incorrect:
$stmt = $this->conn->prepare("SELECT * FROM users");
$sonuc = $stmt->execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0
You can get the id of the last transaction by running lastInsertId() method on the connection object($conn).
Like this $lid = $conn->lastInsertId();
Please check out the docs https://www.php.net/manual/en/language.oop5.basic.php
Here I want to echo out number of rows the following code shows syntax error
$check=$db->prepare("SELECT count (*) FROM follow WHERE uid_fk=:user_id");
$check->execute(array(':user_id'=>$user_id));
echo $check->rowCount();
Try this:
$sql = "SELECT count(*) follow WHERE uid_fk=:user_id";
$result = $con->prepare($sql);
$result->execute();
$rowCount = $result->fetchColumn();
In my controller
$agent = University::model()->findByPK($university_id);
I hope it will return value of a row of value.
I want a single attribute(field3) value say university_name, (with out using findByPK), how to get it
SELECT field3 FROM table [WHERE Clause]
Try this
$usercriteria = new CDbCriteria();
$usercriteria->select = "university_name";
$usercriteria->condition = "university_id=$university_id";
$university = University::model()->findAll($usercriteria);
echo $university->university_name;
Or simply do like u did first
$agent = University::model()->findByPK($university_id);
echo $agent-> university_name;
$agent = University::model()->findByPK($university_id);
echo $agent->university_name;
It should be like this:
$agent = University::model()->findByPK($university_id)->university_name;
Try this:
$university_name = University::model()->findByPK($university_id, array('select'=>'univeersity_name'))->university_name;
#Query: SElECT university_name FROM table_name where id=x;
Instead of
$university_name = University::model()->findByPK($university_id)->university_name;
#Query: SElECT * FROM table_name where id=x;
Second query returns all the fields. So better to avoid those fields are not necessary.
in case if you need to view on the yii _views, i have implemented this on my project
i put this inside my '_view.php' at /protected/views/myTable/
$agent = University::model()->findByPK($data->id_university/*this is the PK field name*/);
echo $agent->university_name /*university field name*/;
sorry again for my bad english :o
It can be done like this:
$agent = University::model()->findAllByAttributes(array('field3'),"WHERE `id` = :id", array(':id' => $university_id));
First argument of findByAttributes is an array of attributes you wish it to return. If left empty it returns all (*).
I'm trying to get latest inserted id from a table using this code:
$id = $tbl->fetchAll (array('public=1'), 'id desc');
but it's always returning "1"
any ideas?
update: I've just discovered toArray();, which retrieves all the data from fetchAll. The problem is, I only need the ID. My current code looks like this:
$rowsetArray = $id->toArray();
$rowCount = 1;
foreach ($rowsetArray as $rowArray) {
foreach ($rowArray as $column => $value) {
if ($column="id") {$myid[$brr] = $value;}
//echo"\n$myid[$brr]";
}
++$rowCount;
++$brr;
}
Obviously, I've got the if ($column="id") {$myid[$brr] = $value;} thing wrong.
Can anyone point me in the right direction?
An aternative would be to filter ID's from fetchAll. Is that possible?
Think you can use:
$id = $tbl->lastInsertId();
Aren't you trying to get last INSERT id from SELECT query?
Use lastInsertId() or the value returned by insert: $id = $db->insert();
Why are you using fetchAll() to retrieve the last inserted ID? fetchAll() will return a rowset of results (multiple records) as an object (not an array, but can be converted into an array using the toArray() method). However, if you are trying to reuse a rowset you already have, and you know the last record is the first record in the rowset, you can do this:
$select = $table->select()
->where('public = 1')
->order('id DESC');
$rows = $table->fetchAll($select);
$firstRow = $rows->current();
$lastId = $firstRow->id;
If you were to use fetchRow(), it would return a single row, so you wouldn't have to call current() on the result:
$select = $table->select()
->where('public = 1')
->order('id DESC');
$row = $table->fetchRow($select);
$lastId = $row->id;
It sounds like it's returning true rather than the actual value. Check the return value for the function fetchAll