protected IEnumerable <Column> GetColumnDetails(bool getIndexDetails)
{
EnumerableRowCollection <DataRow> indexColumns = null;
if (getIndexDetails)
{
indexColumns = _connection.GetSchema("IndexColumns").AsEnumerable()
.OrderBy(row => row.Field <string>(4)) //Schema
.ThenBy(row => row.Field <string>(5)) //Table
.ThenBy(row => row.Field <int>(7)); //Ordinal
}
return(_connection.GetSchema("Columns").AsEnumerable()
.Select(row => {
Column column = null;
var schema = row.Field <string>(1);
var table = row.Field <string>(2);
var name = row.Field <string>(3);
if (getIndexDetails && indexColumns != null)
{
DataRow indexRow = indexColumns.FirstOrDefault(r =>
schema.Equals(r.Field <string>(4)) &&
table.Equals(r.Field <string>(5)) &&
name.Equals(r.Field <string>(6)));
if (indexRow != null)
{
column = new IndexedColumn {
IndexKind = indexRow.Field <byte>(8) == 36 ? IndexKind.PrimaryKey : IndexKind.Unique
};
}
}
if (column == null)
{
column = new Column();
}
column.Schema = schema;
column.Table = table;
column.Name = name;
column.Ordinal = row.Field <int>(4);
column.IsNullable = row.Field <string>(6).Equals("YES", StringComparison.OrdinalIgnoreCase);
column.Type = GetDataColumnType(row.Field <string>(7));
column.DbType = row.Field <string>(7);
return column;
})
.OrderBy(c => c.Schema).ThenBy(c => c.Table).ThenBy(c => c.Ordinal));
}
protected IEnumerable<Column> GetColumnDetails(bool getIndexDetails)
{
EnumerableRowCollection<DataRow> indexColumns = null;
if (getIndexDetails)
{
indexColumns = _connection.GetSchema("IndexColumns").AsEnumerable()
.OrderBy(row => row.Field<string>(4)) //Schema
.ThenBy(row => row.Field<string>(5)) //Table
.ThenBy(row => row.Field<int>(7)); //Ordinal
}
return _connection.GetSchema("Columns").AsEnumerable()
.Select(row => {
Column column = null;
var schema = row.Field<string>(1);
var table = row.Field<string>(2);
var name = row.Field<string>(3);
if (getIndexDetails && indexColumns != null)
{
DataRow indexRow = indexColumns.FirstOrDefault(r =>
schema.Equals(r.Field<string>(4)) &&
table.Equals(r.Field<string>(5)) &&
name.Equals(r.Field<string>(6)));
if (indexRow != null)
{
column = new IndexedColumn {
IndexKind = indexRow.Field<byte>(8) == 36 ? IndexKind.PrimaryKey : IndexKind.Unique
};
}
}
if (column == null)
column = new Column();
column.Schema = schema;
column.Table = table;
column.Name = name;
column.Ordinal = row.Field<int>(4);
column.IsNullable = row.Field<string>(6).Equals("YES", StringComparison.OrdinalIgnoreCase);
column.Type = GetDataColumnType(row.Field<string>(7));
column.DbType = row.Field<string>(7);
return column;
})
.OrderBy(c => c.Schema).ThenBy(c => c.Table).ThenBy(c => c.Ordinal);
}
