private List <BmSQLDataRow> getData(BmSQLTableDataType table)
{
List <BmSQLDataRow> lsData = new List <BmSQLDataRow>();
SqlDataReader sqlReader = null;
try
{
string sql = "SELECT ";
for (int i = 0; i < table.Columns.Count; i++)
{
sql += " " + table.Columns[i].ColName + " ";
if (i < table.Columns.Count - 1)
{
sql += " , ";
}
}
sql += " FROM[" + table.TableName + "]";
SqlCommand sqlCMD = new SqlCommand(sql, m_sqlCnn.sqlCNN);
sqlReader = sqlCMD.ExecuteReader(CommandBehavior.Default);
while (sqlReader.Read())
{
BmSQLDataRow row = new BmSQLDataRow();
for (int i = 0; i < sqlReader.FieldCount; i++)
{
row.ColValues.Add(sqlReader.GetValue(i).ToString());
row.ColTypes.Add(sqlReader.GetFieldType(i));
row.ColNames.Add(table.Columns[i].ColName);
}
lsData.Add(row);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
finally
{
if (sqlReader != null && !sqlReader.IsClosed)
{
sqlReader.Close();
}
}
return(lsData);
}
private void getSchema(System.Data.DataTable table)
{
foreach (System.Data.DataRow row in table.Rows)
{
BmSQLTableDataType sqlTable = null;
foreach (System.Data.DataColumn col in table.Columns)
{
if (col.ColumnName.Equals("TABLE_NAME"))
{
Debug.WriteLine("{0} = {1}", col.ColumnName, row[col]);
sqlTable = new BmSQLTableDataType();
sqlTable.TableName = row[col].ToString();
DataTable fields = m_sqlCnn.sqlCNN.GetSchema(SqlClientMetaDataCollectionNames.Columns, new string[] { null, null, sqlTable.TableName });
try
{
foreach (DataRow dr in fields.Rows)
{
BmSQLColumnDataType sqlColumn = new BmSQLColumnDataType();
sqlColumn.ColName = dr["COLUMN_NAME"].ToString();
// sqlColumn.updateDataType(dr[7].ToString());
Debug.WriteLine(sqlColumn.ColName);
//get column type
string sql = "SELECT + [" + sqlColumn.ColName + "] FROM [" + sqlTable.TableName + "]";
SqlCommand sqlCMD = new SqlCommand(sql, m_sqlCnn.sqlCNN);
SqlDataReader sqlReader = sqlCMD.ExecuteReader(CommandBehavior.KeyInfo);
DataTable schemaDataType = sqlReader.GetSchemaTable();
//foreach (ForeignKeyConstraint fk in schemaDataType.Constraints)
//{
// Debug.WriteLine("Contraints: " + fk.RelatedColumns[0] + " - " + fk.RelatedColumns[1]);
//}
//foreach (DataRow type in schemaDataType.Rows)
if (schemaDataType.Rows.Count > 0)
{
DataRow type = schemaDataType.Rows[0];
foreach (DataColumn property in schemaDataType.Columns)
{
Debug.WriteLine(property.ColumnName + " : " + type[property].ToString());
if (property.ColumnName.Equals("DataTypeName"))
{
sqlColumn.updateDataType(type[property].ToString());
}
else
if (property.ColumnName.Equals("NumericPrecision"))
{
sqlColumn.NumericPrecision = Int16.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("NumericScale"))
{
sqlColumn.NumericScale = Int16.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("IsUnique"))
{
sqlColumn.IsUnique = Boolean.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("IsKey"))
{
sqlColumn.IsKey = Boolean.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("IsIdentity"))
{
sqlColumn.IsIdentity = Boolean.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("IsAutoIncrement"))
{
sqlColumn.IsAutoIncrement = Boolean.Parse(type[property].ToString());
}
else if (property.ColumnName.Equals("IsReadOnly"))
{
sqlColumn.IsReadOnly = Boolean.Parse(type[property].ToString());
}
}
}
sqlReader.Close();
string sql2 = "SELECT f.name AS foreign_key_name ,OBJECT_NAME(f.parent_object_id) AS table_name " +
", COL_NAME(fc.parent_object_id, fc.parent_column_id) AS constraint_column_name" +
" , OBJECT_NAME (f.referenced_object_id) AS referenced_object " +
" , COL_NAME(fc.referenced_object_id, fc.referenced_column_id) AS referenced_column_name " +
"FROM sys.foreign_keys AS f " +
"INNER JOIN sys.foreign_key_columns AS fc " +
" ON f.object_id = fc.constraint_object_id " +
"WHERE f.parent_object_id = OBJECT_ID('" + sqlTable.TableName + "') AND COL_NAME(fc.referenced_object_id, fc.referenced_column_id) = '" + sqlColumn.ColName + "'; ";
SqlCommand sqlCMD2 = new SqlCommand(sql2, m_sqlCnn.sqlCNN);
SqlDataReader sqlReader2 = sqlCMD2.ExecuteReader();
while (sqlReader2.Read())
{
string foreign_key_name = sqlReader2["foreign_key_name"].ToString();
string parent_table_name = sqlReader2["referenced_object"].ToString();
string referenced_column_name = sqlReader2["referenced_column_name"].ToString();
string constraint_column_name = sqlReader2["constraint_column_name"].ToString();
sqlColumn.IsForeignKey = true;
sqlColumn.ParentTableName = parent_table_name;
sqlColumn.ReferenceColName = referenced_column_name;
Debug.WriteLine("Forign Key: " + foreign_key_name);
Debug.WriteLine("Parent Table: " + parent_table_name + " - Column Constraint:" + constraint_column_name + " --- Ref: " + referenced_column_name);
}
sqlReader2.Close();
sqlTable.Columns.Add(sqlColumn);
}
}
catch (Exception ex)
{ }
}
}
if (sqlTable != null)
{
sqlTable.Data = getData(sqlTable);
SqlSchema.Tables.Add(sqlTable);
}
Debug.WriteLine("============================");
}
}
