static void Main(string[] args)
{
Console.WriteLine("Enter path to your xml file or nothing to take xml file from \"xml//AppleSection.xml\":");
string pathxml = Console.ReadLine();
Section section1;
if (pathxml == "") section1 = new Section("xml//AppleSection.xml");
else section1 = new Section(pathxml);
Console.WriteLine(section1.path);
XmlTextReader xtr = new XmlTextReader("xml//xmldb.xml");
Table [] tb = new Table[3];
string [] tablesName = {"Apple", "Dept", "Sale_date"};
for (int i = 0; i!=3; i++)
{
while (xtr.Name != tablesName[i])
xtr.Read();
tb[i] = new Table(ref xtr);
}
Datatable dt = new Datatable(ref xtr);
SelectQueries sql = new SelectQueries(dt, tb, section1);
SQLiteConnection appleConnection = new SQLiteConnection(String.Format("Data Source={0}", section1.path));
appleConnection.Open();
SQLiteCommand appleCommand = new SQLiteCommand(appleConnection);
Console.Write("{0, -20} |", ' ');
for (int i = 0; i!=sql.idCol.Count; i++)
Console.Write("{0, -20} |", sql.idCol[i]);
Console.WriteLine();
int i2 = 0;
for (int j = 0; j != sql.idRow.Count; j++)
{
Console.Write("{0, -20} |", sql.idRow[j]);
for (int i = 0; i != sql.idCol.Count; i++)
{
appleCommand.CommandText = sql.queries[i2];
SQLiteDataReader dataReader = appleCommand.ExecuteReader();
DataTable data = new DataTable();
data.Load(dataReader);
dataReader.Close();
if (data.Rows.Count != 0) Console.Write("{0, -20} |", data.Rows[0][0]);
else Console.Write("{0, -20} |", 0);
i2++;
}
Console.WriteLine();
}
appleConnection.Close();
Console.ReadKey();
}
public SelectQueries(Datatable dt, Table[] tables, Section sec)
{
queries = new List<string>();
idCol = new List<string>();
idRow = new List<string>();
string amount = "";
foreach (Fact s in dt.facts)
if (s.name == "Amount") amount = s.nameinDB;
StringBuilder query = new StringBuilder("Select " + dt.nameDT + "." + amount + " from " + dt.nameDT);
for (int j = 0; j!=tables.Length; j++)
{
string fk = "";
foreach (Fact t in dt.facts)
if (t.link == tables[j].table) fk = t.nameinDB;
query.AppendFormat(" inner join {0} on {1}.{2} = {3}.{4}", tables[j].tableDB, tables[j].tableDB, tables[j].pk, dt.nameDT, fk);
}
Table t1 = tables[0];
foreach (Table t in tables)
if (t.table == sec.fixedDim) t1 = t;
Field f1 = t1.fields[0];
foreach (Field f in t1.fields)
if (f.name == sec.fixedField) f1 = f;
query.AppendFormat(" where {0}.{1}={2} and ", t1.tableDB, f1.nameinDB, sec.fixedId[0]);
Table dimCol = tables[0];
foreach (Table t in tables)
if (t.table == sec.dimByColumn) dimCol = t;
Field vis = dimCol.fields[0];
foreach (Field f in dimCol.fields)
if (f.visible) vis = f;
for (int colNum = 0; colNum != sec.selectId[0].Count; colNum++)
{
SQLiteConnection appleConnection = new SQLiteConnection(String.Format("Data Source={0}", sec.path));
appleConnection.Open();
SQLiteCommand appleCommand = new SQLiteCommand(appleConnection);
appleCommand.CommandText = "select " + vis.nameinDB + " from " + dimCol.tableDB + " where " + dimCol.pk + "=" + sec.selectId[0][colNum];
SQLiteDataReader dataReader = appleCommand.ExecuteReader();
DataTable data = new DataTable();
data.Load(dataReader);
dataReader.Close();
idCol.Add(data.Rows[0][0].ToString());
}
Table dimRow = tables[0];
foreach (Table t in tables)
if (t.table == sec.dimByRow) dimRow = t;
vis = dimRow.fields[0];
foreach (Field f in dimRow.fields)
if (f.visible) vis = f;
for (int rowNum = 0; rowNum != sec.selectId[1].Count; rowNum++)
{
SQLiteConnection appleConnection = new SQLiteConnection(String.Format("Data Source={0}", sec.path));
appleConnection.Open();
SQLiteCommand appleCommand = new SQLiteCommand(appleConnection);
appleCommand.CommandText = "select " + vis.nameinDB + " from " + dimRow.tableDB + " where " + dimRow.pk + "=" + sec.selectId[1][rowNum];
SQLiteDataReader dataReader = appleCommand.ExecuteReader();
DataTable data = new DataTable();
data.Load(dataReader);
dataReader.Close();
idRow.Add(data.Rows[0][0].ToString());
}
for (int rowNum = 0; rowNum != sec.selectId[1].Count; rowNum++)
{
for (int colNum = 0; colNum != sec.selectId[0].Count; colNum++)
{
StringBuilder resQuery = new StringBuilder(query.ToString());
bool prov = true;
foreach (Table t in tables)
{
if (t.table != sec.fixedDim && prov)
{
resQuery.AppendFormat("{0}.{1}={2} and ", t.tableDB, t.pk, sec.selectId[0][colNum]);
prov = false;
}
else if (t.table != sec.fixedDim) resQuery.AppendFormat("{0}.{1}={2};", t.tableDB, t.pk, sec.selectId[1][rowNum]);
}
queries.Add(resQuery.ToString());
}
}
}
