But, as mentioned in that post, columns in SharePoint's SQL database (WSS_Content), in AllUserData table where all data is stored, have names like nvarchar1, navarchar2, nvarchar3...
There are two ways how can you find the name of column in which data from your SP list is stored:
1. Powershell script:
Change values marked in red with your values:
// Get your SPWeb
$web =
get-spweb "http://yourserver/yoursite";
// Get your SPList
$list =
$web.Lists["ListName"];
// Get the field you want to examine
$field =
$list.fields["FieldName"];
// Parse the schemaxml into a PowerShell
xml object
[xml]$schema
= $field.SchemaXml;
// You can now iterate thought the xml
attributes. For example the colName:
$schema.Field.ColName;
2. C# function:
This solution is much better because it tells you the name of the column in which data is stored and it also tells you the row in which this data is located.
//list is the name of your SP list, field is the name of SP field
public void
getXmlColName(string list, string field)
{
string _siteUrl = ConfigurationSettings.AppSettings["YourSiteURL"];
using (SPSite _siteCollection
= new SPSite(_siteUrl))
{
using (SPWeb _SPWeb = _siteCollection.OpenWeb())
{
SPList
_list = null;
SPFieldCollection _listFields = null;
_list = _SPWeb.Lists[list];
_listFields = _list.Fields;
string _xmlSchema = _listFields.SchemaXml;
//searching for name of the field in entire
xml scheme
int _startIndex = _xmlSchema.IndexOf(field);
if (_startIndex != -1)
{
int _endIndex = _xmlSchema.IndexOf("/>",
_startIndex);
string _stringSearch = _xmlSchema.Substring(_startIndex, _endIndex
- _startIndex);
int
_startIndexColName = _stringSearch.IndexOf("ColName=\"")
+ 9;
int _endIndexColName = _stringSearch.IndexOf("\"", _startIndexColName);
//this is ColName
string _xmlColName = _stringSearch.Substring(_startIndexColName, _endIndexColName
- startIndexColName);
Console.WriteLine("\n\nName of
column in which your data is stored (ColName): " + xmlColName);
//now we need RowOrdinal, so that we can see in which row is data
located
int _startIndexRowOrdinal = _stringSearch.IndexOf("RowOrdinal=\"") + 12;
int _endIndexRowOrdinal = _stringSearch.IndexOf("\"", _startIndexRowOrdinal);
string _xmlRowOrdinal = _stringSearch.Substring(_startIndexRowOrdinal,
_endIndexRowOrdinal - _startIndexRowOrdinal);
if (_xmlRowOrdinal.Length > 1)
Console.WriteLine("\n\nRow
index (RowOrdinal): No index");
else
Console.WriteLine("\n\nRow
index (RowOrdinal): " + _xmlRowOrdinal);
}
else
Console.WriteLine("There is no
SP field with that name");
}
}
}
Now, when you have column name and RowOrdinal, you can go to SQL database and search data with following query (let's say that your data is in nvarchar1 and RowOrdinal is 0):
/****** Script
for SelectTopNRows command from SSMS
******/
SELECT nvarchar1
FROM
[WSS_Content].[dbo].[AllUserData]
WHERE
tp_RowOrdinal = 0