Unclosed quotation mark after the character string ошибка

Trying to insert a lot of records from a MySQL database into SQL Server(2005 SQLExpress) database. Here’s the query and the error from PHP. I am not understanding it. All opening strings are closed properly but still..

INSERT INTO tbl_email (uniq_id, Respondent_ID, Bcode, BID, Email, Voornaam, Voorletters, Tussenvoegsel, Achternaam, Geslacht, Adres, Huisnummer, Toevoeging, Postcodecijfers, Postcodeletters, Woonplaats, Land, Telefoon1, Mobiel, Telefoon2, Matchkey, Profile, Geboortejaar, Geboortedatum, Leefsituatie, Gezinsgrootte, Inkomen, Beroep, Opleiding, Huis, Huisjaar, Huistype, Tuin, Auto, Beleggen, Kopenopafstand, Financien, Respondenttype, Charitype, Chari, Postcode, Huisdier, EV2, EV3, EV4, EV5, EV6, EV7, EV8, EV9, Aanmaakdatum, fk_ID_projectreactie, status_subscribed, unsubscribeddate, insertdatetime, editdatetime, to_delete) VALUES (6, "41", "288", "53", "test@hotmail.com", "a", "M", "", "0", "2", "0", "176", "", "5652", "EP", "a", "", "", "0", "0", "0", "", "0", "", "2", "2", "", "4", "4", "1", "2006", "", "", "", "1", "1", "", "3", "", "", "a", "1", "", "", "", "", "", "", "", "", "a", 0, 0, Null, Null, Null, 1)
Warning: mssql_query() [function.mssql-query]: message: Unclosed quotation mark after the character string ''. (severity 15) in crn_export_mssql.php on line 94

What could be the problem. I ran this query singly through SQL Server management console and it accepted and inserted. I even ran this query in another PHP file and data was inserted. However, when I do it in a PHP loop then this problem., The code snippet is,

while(//get rows from mysql)
{ //create query on runtime
$query = $strInsertDump . '('.implode(', ', $arrInsertField).')';
$result = mssql_query($query, $mslink);
}

Edit:

I used PDO now and here’s what the errorInfo returns.

Array
(
[0] => HY000
[1] => 20018
[2] => Incorrect syntax near ''. [20018] (severity 5) [(null)]
[3] => -1
[4] => 5
[5] => OpenClient
)

You’re missing the end quote, this should get you there.

WHILE (@7DaysEarlierPartitionIntegerId <= @CurrentPartitionIntegerId)
    BEGIN
        Set @7DaysEarlierPartitionId 
            = CAST(@7DaysEarlierPartitionIntegerId AS char)
        set @sqlCommand 
            = 'Select * from ' 
              + quotename(@RequestUsage_Partition + @7DaysEarlierPartitionId)
              + 'where UserLogin like ''r2rohit.kharade'''
        exec(@sqlCommand)
        set @7DaysEarlierPartitionIntegerId 
            = @7DaysEarlierPartitionIntegerId + 1
    END

I generally like to use CHAR(39) in place of multiple quotes, just to make code more readable

WHILE (@7DaysEarlierPartitionIntegerId <= @CurrentPartitionIntegerId)
    BEGIN
        Set @7DaysEarlierPartitionId 
            = CAST(@7DaysEarlierPartitionIntegerId AS char)
        set @sqlCommand 
            = 'Select * from ' 
              + quotename(@RequestUsage_Partition + @7DaysEarlierPartitionId)
              + 'where UserLogin like ' + CHAR(39) + 'r2rohit.kharade' + CHAR(39)
        exec(@sqlCommand)
        set @7DaysEarlierPartitionIntegerId 
            = @7DaysEarlierPartitionIntegerId + 1
    END

Bonus thought, just as another, more readable version, you could also QUOTENAME

WHILE (@7DaysEarlierPartitionIntegerId <= @CurrentPartitionIntegerId)
    BEGIN
        Set @7DaysEarlierPartitionId 
            = CAST(@7DaysEarlierPartitionIntegerId AS char)
        set @sqlCommand 
            = 'Select * from ' 
              + quotename(@RequestUsage_Partition + @7DaysEarlierPartitionId)
              + ' where UserLogin like ' + QUOTENAME('r2rohit.kharade', CHAR(39))
        exec(@sqlCommand)
        set @7DaysEarlierPartitionIntegerId 
            = @7DaysEarlierPartitionIntegerId + 1
    END

Insert line breaks to the line containing the SQL command. This makes it easier to find the problem:

SqlDataAdapter sda = new SqlDataAdapter(
" Insert Into [Data Entry] (Id,Name,Gender,Age,Salary,Tax) Values ('" + 
textBox1.Text + "','" + 
textBox2.Text + "','" + 
comboBox1 + "'," + 
textBox3.Text + "','" + 
textBox4.Text + "','" + 
textBox5.Text + "')" ,con);

Here it is:

comboBox1 + "'," +

It must be

comboBox1 + "','" +

(and you probably have to use a ComboBox method like SelectedItem).

[EDIT — see comment by Maciej Los]
While not related to the question it is important to know about SQL injection — Wikipedia[^].
To avoid these always use parametrised queries. See SqlParameterCollection.AddWithValue Method (String, Object) (System.Data.SqlClient)[^] for example code.
As a side effect you will have better readable queries that are not prone to the errors from your question.
[/EDIT]