// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

namespace System.Data.Common
{
    // required columns that DataAdapter.Fill(Schema) will pay attention to
    // when constructing new DataColumns to add to a DataTable
    public static class SchemaTableColumn
    {
        public static readonly string ColumnName = "ColumnName";
        public static readonly string ColumnOrdinal = "ColumnOrdinal";
        public static readonly string ColumnSize = "ColumnSize";
        public static readonly string NumericPrecision = "NumericPrecision";
        public static readonly string NumericScale = "NumericScale";

        public static readonly string DataType = "DataType";
        public static readonly string ProviderType = "ProviderType";
        public static readonly string NonVersionedProviderType = "NonVersionedProviderType";

        public static readonly string IsLong = "IsLong";
        public static readonly string AllowDBNull = "AllowDBNull";
        public static readonly string IsAliased = "IsAliased";
        public static readonly string IsExpression = "IsExpression";
        public static readonly string IsKey = "IsKey";
        public static readonly string IsUnique = "IsUnique";

        public static readonly string BaseSchemaName = "BaseSchemaName";
        public static readonly string BaseTableName = "BaseTableName";
        public static readonly string BaseColumnName = "BaseColumnName";
    }
}