diff --git a/minisqlquery-master/src/MiniSqlQuery.Core/DbModel/DbModelConstraint.cs b/minisqlquery-master/src/MiniSqlQuery.Core/DbModel/DbModelConstraint.cs
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+++ b/minisqlquery-master/src/MiniSqlQuery.Core/DbModel/DbModelConstraint.cs
@@ -0,0 +1,54 @@
+#region License
+
+// Copyright 2005-2019 Paul Kohler (https://github.com/paulkohler/minisqlquery). All rights reserved.
+// This source code is made available under the terms of the GNU Lesser General Public License v3.0
+// https://github.com/paulkohler/minisqlquery/blob/master/LICENSE
+#endregion
+
+
+namespace MiniSqlQuery.Core.DbModel
+{
+ /// <summary>The db model constraint.</summary>
+ public class DbModelConstraint
+ {
+ /// <summary>Gets or sets ColumnName.</summary>
+ /// <value>The column name.</value>
+ public string ColumnName { get; set; }
+
+ /// <summary>Gets or sets ConstraintName.</summary>
+ /// <value>The constraint name.</value>
+ public string ConstraintName { get; set; }
+
+ /// <summary>Gets or sets ConstraintTableName.</summary>
+ /// <value>The constraint table name.</value>
+ public string ConstraintTableName { get; set; }
+
+ /// <summary>Gets or sets ConstraintTableSchema.</summary>
+ /// <value>The constraint table schema.</value>
+ public string ConstraintTableSchema { get; set; }
+
+ /// <summary>Gets or sets DeleteRule.</summary>
+ /// <value>The delete rule.</value>
+ public string DeleteRule { get; set; }
+
+ /// <summary>Gets or sets UniqueColumnName.</summary>
+ /// <value>The unique column name.</value>
+ public string UniqueColumnName { get; set; }
+
+ /// <summary>Gets or sets UniqueConstraintName.</summary>
+ /// <value>The unique constraint name.</value>
+ public string UniqueConstraintName { get; set; }
+
+ /// <summary>Gets or sets UniqueConstraintTableName.</summary>
+ /// <value>The unique constraint table name.</value>
+ public string UniqueConstraintTableName { get; set; }
+
+ /// <summary>Gets or sets UniqueConstraintTableSchema.</summary>
+ /// <value>The unique constraint table schema.</value>
+ public string UniqueConstraintTableSchema { get; set; }
+
+ /// <summary>Gets or sets UpdateRule.</summary>
+ /// <value>The update rule.</value>
+ public string UpdateRule { get; set; }
+ }
+}
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