public void CanCreateSequence()
        {
            var expression = new CreateSequenceExpression
            {
                Sequence =
                {
                    Cache      =           10,
                    Cycle      = true,
                    Increment  =            2,
                    MaxValue   =          100,
                    MinValue   =            0,
                    Name       = "Sequence",
                    SchemaName = "TestSchema",
                    StartWith  = 2
                }
            };
            var sql = generator.Generate(expression);

            sql.ShouldBe("CREATE SEQUENCE [TestSchema].[Sequence] INCREMENT BY 2 MINVALUE 0 MAXVALUE 100 START WITH 2 CACHE 10 CYCLE");
        }
        public void CanGenerateNecessaryStatementsForADeleteDefaultExpression()
        {
            var expression = new DeleteDefaultConstraintExpression {
                ColumnName = "Name", SchemaName = "Personalia", TableName = "Person"
            };

            const string expected = "DECLARE @default sysname, @sql nvarchar(max);\r\n\r\n" +
                                    "-- get name of default constraint\r\n" +
                                    "SELECT @default = name\r\n" +
                                    "FROM sys.default_constraints\r\n" +
                                    "WHERE parent_object_id = object_id('[Personalia].[Person]')\r\n" + "" +
                                    "AND type = 'D'\r\n" + "" +
                                    "AND parent_column_id = (\r\n" + "" +
                                    "SELECT column_id\r\n" +
                                    "FROM sys.columns\r\n" +
                                    "WHERE object_id = object_id('[Personalia].[Person]')\r\n" +
                                    "AND name = 'Name'\r\n" +
                                    ");\r\n\r\n" +
                                    "-- create alter table command to drop contraint as string and run it\r\n" +
                                    "SET @sql = N'ALTER TABLE [Personalia].[Person] DROP CONSTRAINT ' + @default;\r\n" +
                                    "EXEC sp_executesql @sql;";

            generator.Generate(expression).ShouldBe(expected);
        }
Пример #3
0
        public void CanAlterDefaultConstraintWithCustomSchema()
        {
            var expression = GeneratorTestHelper.GetAlterDefaultConstraintExpression();

            expression.SchemaName = "TestSchema";

            string expected = "DECLARE @default sysname, @sql nvarchar(max);" + Environment.NewLine + Environment.NewLine +
                              "-- get name of default constraint" + Environment.NewLine +
                              "SELECT @default = name" + Environment.NewLine +
                              "FROM sys.default_constraints" + Environment.NewLine +
                              "WHERE parent_object_id = object_id('[TestSchema].[TestTable1]')" + Environment.NewLine +
                              "AND type = 'D'" + Environment.NewLine +
                              "AND parent_column_id = (" + Environment.NewLine +
                              "SELECT column_id" + Environment.NewLine +
                              "FROM sys.columns" + Environment.NewLine +
                              "WHERE object_id = object_id('[TestSchema].[TestTable1]')" + Environment.NewLine +
                              "AND name = 'TestColumn1'" + Environment.NewLine +
                              ");" + Environment.NewLine + Environment.NewLine +
                              "-- create alter table command to drop constraint as string and run it" + Environment.NewLine +
                              "SET @sql = N'ALTER TABLE [TestSchema].[TestTable1] DROP CONSTRAINT ' + QUOTENAME(@default);" + Environment.NewLine +
                              "EXEC sp_executesql @sql;" + Environment.NewLine + Environment.NewLine +
                              "-- create alter table command to create new default constraint as string and run it" + Environment.NewLine +
                              "ALTER TABLE [TestSchema].[TestTable1] WITH NOCHECK ADD CONSTRAINT [DF_TestTable1_TestColumn1] DEFAULT(1) FOR [TestColumn1];";

            var result = Generator.Generate(expression);

            result.ShouldBe(expected);
        }
Пример #4
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 public virtual void Process(CreateSchemaExpression expression)
 {
     Process(Generator.Generate(expression));
 }