private void FillSchemaTable(DataTable schemaTable)
{
DataColumn column3 = new DataColumn(SchemaTableOptionalColumn.ProviderSpecificDataType, typeof(Type));
schemaTable.Columns.Add(column3);
int fieldCount = this.FieldCount;
DbSqlParserColumnCollection columns = null;
int count = 0;
if (this._keyInfoRequested)
{
OracleSqlParser parser = new OracleSqlParser();
parser.Parse(this._statementText, this._connection);
columns = parser.Columns;
count = columns.Count;
}
for (int i = 0; i < fieldCount; i++)
{
OracleColumn column = this._columnInfo[i];
DataRow row = schemaTable.NewRow();
row[SchemaTableColumn.ColumnName] = column.ColumnName;
row[SchemaTableColumn.ColumnOrdinal] = column.Ordinal;
if (column.IsLong | column.IsLob)
{
row[SchemaTableColumn.ColumnSize] = 0x7fffffff;
}
else
{
row[SchemaTableColumn.ColumnSize] = column.SchemaTableSize;
}
row[SchemaTableColumn.NumericPrecision] = column.Precision;
row[SchemaTableColumn.NumericScale] = column.Scale;
row[SchemaTableColumn.DataType] = column.GetFieldType();
row[column3] = column.GetFieldOracleType();
row[SchemaTableColumn.ProviderType] = column.OracleType;
row[SchemaTableColumn.IsLong] = column.IsLong | column.IsLob;
row[SchemaTableColumn.AllowDBNull] = column.IsNullable;
if (this._keyInfoRequested && (count == fieldCount))
{
DbSqlParserColumn column2 = columns[i];
row[SchemaTableColumn.IsAliased] = column2.IsAliased;
row[SchemaTableColumn.IsExpression] = column2.IsExpression;
row[SchemaTableColumn.IsKey] = column2.IsKey;
row[SchemaTableColumn.IsUnique] = column2.IsUnique;
row[SchemaTableColumn.BaseSchemaName] = this.SetSchemaValue(OracleSqlParser.CatalogCase(column2.SchemaName));
row[SchemaTableColumn.BaseTableName] = this.SetSchemaValue(OracleSqlParser.CatalogCase(column2.TableName));
row[SchemaTableColumn.BaseColumnName] = this.SetSchemaValue(OracleSqlParser.CatalogCase(column2.ColumnName));
}
else
{
row[SchemaTableColumn.IsAliased] = DBNull.Value;
row[SchemaTableColumn.IsExpression] = DBNull.Value;
row[SchemaTableColumn.IsKey] = DBNull.Value;
row[SchemaTableColumn.IsUnique] = DBNull.Value;
row[SchemaTableColumn.BaseSchemaName] = DBNull.Value;
row[SchemaTableColumn.BaseTableName] = DBNull.Value;
row[SchemaTableColumn.BaseColumnName] = DBNull.Value;
}
schemaTable.Rows.Add(row);
row.AcceptChanges();
}
}