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$colName = $this->input->post('colName'); $value = $this->input->post('value'); $jobId= $this->input->post('jobId'); $this->db->query("UPDATE test set ".$colName." = ".$value." where id= ".$jobId);

I am able to update numeric values. However getting an error

Error Number: 1054

Unknown column '345drt' in 'field list'

UPDATE test set TTDNo1 = 345drt where id = 41

How can I update numeric, string & date fields in DB?

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  • 2
    "UPDATE test set $colName = '$value' where id = '$jobId'" Commented Apr 18, 2016 at 6:14
  • col TTDNo1 has what datatype assigned in db, @VDS Commented Apr 18, 2016 at 6:32

4 Answers 4

Reset to default
1

Try this

$this->db->query("UPDATE test set ".$colName." = '".$value."' where id= ".$jobId);
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16 Comments

it is updating in DB, however getting an error on browser as "The URI you submitted has disallowed characters."
I have previouly added "" before column name as it safe: "UPDATE test set ".$colName."` = '".$value."' where id= ".$jobId. Are you sure that your column name is "345drt"?
do you have field/column name "345drt"?
colName is "TTDNo1". Value is "345drt "
Echo your update query in browser & confirm that your value must be quoted I mean to say update query must be : UPDATE test set TTDNo1 = '345drt' where id = 41 or UPDATE test set TTDNo1 = '345drt' where id = 41 or UPDATE test set TTDNo1 = "345drt" where id = 41
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0

Try like this:

$this->db->query("UPDATE test set ".$colName." = '".$value."' where id= ".$jobId);
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0

Unknown column '345drt' in 'field list'

it looks you have wrong value for column name, you put the value in the column name try to print the value of $colName and $value befor exute the query and do the query as @Dipanwita Kundu did

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colName is "TTDNo1". Value is "345drt"
echo "UPDATE test set ".$colName." = ".$value." where id= ".$jobId; paste the result of this echo in comments here'
the query should be like this "UPDATE test set " . $colName . " = '" . $value . "' where id= " . $jobId; and the echo value is UPDATE test set TTDNo1 = '345drt' where id= 41
UPDATE test set TTDNo1 = '56ttt' where id = 41
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Since the Column is varchar, you should try concatenating your variables :

$this->db->query("UPDATE test set ".$colName." = '".$value."' where id= '".$jobId."' ");
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@VDS, did the answer solved your issue. Please accept any answer that solved your issue. So will be helpful for other users as well

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