Problem with updating records in database

Question

Hello everyone,
I have a question, i have a database and in the database I want to update some records.
Now, in my database I have refnr, vnr, etc� it is possible that I have 3 the same refnr (example)
98765A     001     
98765A     002
98765B     003
Now, the program must compare the records between 2 databases and than update al the records flag (example) after comparing
98765A     001     A
98765A     002     A
98765B     003     A
Now my question is, in the first code 1 example I search all the records and after a IF statement the program send the refnr and the vnr object to updateRecordsFlag(String refnr, String vnr) now In the example above you see I have for example 3 records and these 3 must updated with a A
Sow, I have made a FOR statement that gets the highest vnr and count to 1 (Teller--), how can I make a FOR statement that send each time an object to updateRecordsFlag(String refnr, String vnr). Now it�s just the highest record that updates.
I use preparedstatement. For read, etc�
code 1
try {
rowBeheerRefvolgnrs = datasender.readBeheerRefvolgnrs();
} catch (Exception ex) {
ex.printStackTrace();
String refnr = "";
String vnr = "";
String code = "";
int i = 0;
while (i < rowBeheerRefvolgnrs.length) {
refnr = rowBeheerRefvolgnrs.substring(0,27);
vnr = rowBeheerRefvolgnrs[i].substring(27,30);
code = rowBeheerRefvolgnrs[i].substring(14,15);
if (code.compareTo("A") == 0) {
     int Teller = Integer.parseInt(vnr);
     updateRecordPersonA(refnr, vnr);
          for (int j = 1; Teller >= j; Teller--) {
          updateRecordsFlag(refnr, vnr);
          vnr = new Integer(Teller).toString();
if (code.compareTo("B") == 0) {
//updateRecordPersonB(refnr, vnr);
i++;
logger.debug("update end ");
private void updateRecordsFlag(String refnr, String vnr) {
Here i have my code to update the flag

Answer 1

declare @table nvarchar(128)
declare @idcol nvarchar(128)
declare @sql nvarchar(max)
--initialize those two values
set @table = 'Table_name'
set @idcol = 'some id to recognize the row'
set @sql = 'select ' + @idcol +' , (0'
select @sql = @sql + ' + isnull(datalength(' + name + '), 1)'
from sys.columns where object_id = object_id(@table)
set @sql = @sql + ') as rowsize from ' + @table + ' order by rowsize desc'
PRINT @sql
exec (@sql)
You can try this query. Too many varchar columns of big sizes can cause the row size to be bigger than what a row can hold, but its weird that it just went off in retry.
Regards, Ashwin Menon My Blog - http:\\sqllearnings.com