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if String is empty then data is not inserting


if String is empty then data is not inserting

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if String is empty then data is not inserting
Tag : chash , By : toma
Date : November 24 2020, 05:48 AM

this will help You've got multiple problems here. One, as pointed out in the comments, is that INNER JOIN cannot join to NULL (no join can, actually, but read on..) so where, for example you write in your SQL:
INNER JOIN MaritalStatus AS m ON m.MaritalStatusDesc = @maritalStatusDesc
cmd.Parameters.Add(new SqlParameter("@maritalStatusDesc", string.IsNullOrEmpty(MaritalStatusDesc) ? (object)DBNull.Value : MaritalStatusDesc));
WHERE ... AND @maritalStatusDesc Is Not Null
cmd.Parameters.Add(new SqlParameter("@maritalStatusId", IDLookupHelper.GetIDForMaritalStatusDesc(msdTextBox.Text)));
public object GetIDForMaritalStatusDesc(string msd){
  if(string.IsNullOrEmpty(msd))
    return DBNull.Value;
  using(SqlCommand sq = new SqlCommand(
    "connstr here", 
    "SELECT ID FROM MaritalStatusWHERE Desc = @msd"
  );){
    sq.Parameters.AddWithValue("@msd", msd); //note: google "can we stop using addwithvalue already"

    try{ 
      return sq.ExecuteScalar();
    } catch {
      return DBNull.Value
    }
  }
}

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Empty string inserting a zero, not a null


Tag : mysql , By : Revision17
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , MySQL by default attempts to coerce invalid values for a column to the correct type. Here, the empty string '' is of type string, which is neither an integer nor NULL. I suggest taking the following steps:
Change the query to the following: INSERT INTO foo (bar) VALUES (NULL); Enable strict mode in MySQL. This prevents as many unexpected type and value conversions from occurring. You will see more error messages when you try to do something MySQL doesn't expect, which helps you to spot problems more quickly.

Dealing with empty data while inserting text data in MySql via python script


Tag : python , By : Brian
Date : March 29 2020, 07:55 AM
With these it helps I am reading and storing data in MySQL and some columns data consists of empty values. e.g , the answer I found which works perfectly well is ..
  data_buffer = [ts] + data_tmp[1:]
  data_buffer = [v if v is not "" and v is not " " else None for v in data_buffer]
  print data_buffer

Query not inserting empty data as empty into DB (MAMP)


Tag : php , By : warttack
Date : March 29 2020, 07:55 AM
this will help maybe try with the use of ->execute()
remove the bindParam's and change to this:
$statement->execute(array(
    ':nombre' => $datos['nombre'],
    ':usuario' => $datos['usuario'],
    ':password' => $datos['password'],
    ':rol' => $datos['rol'],
    ':estado' => 0
));

C++ map empty after inserting data.


Tag : cpp , By : user185939
Date : March 29 2020, 07:55 AM
Any of those help You create a temporary copy of Student each time you're going to addMark, and discard it afterwards. You need not to copy it, but use reference, like this:
for (auto& stud: listOfStudents) /* stud.addMark */
for (const auto& stud: listOfStudents) /* stud.getMark */
float getMark(const string &module) const throw (NoMarkException);

Inserting a string into the last empty space of another string in Python


Tag : python , By : Comfly
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , str.rsplit the second string and str.join the appropriate tokens back together:
t1, t2 = mystring2.rsplit(' ', 1)
' '.join((t1, mystring1, t2))
# 'Lorem Ipsum (Lorem Dolor Amet English French German Elit)'
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