示例#1
0
        public void ShouldMarkForDeleteWhenCustomFieldName()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateCompositeKeyTable();

            helper.DataService.Insert(new SampleCompositeKeyDto
            {
                Pk1          = 3,
                Pk2          = "B",
                TextValue    = "AA",
                IntValue     = 1,
                DecimalValue = 1
            });

            var dtos = new[]
            {
                new SampleCompositeKeyDto
                {
                    Pk1          = 1,
                    Pk2          = "A",
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleCompositeKeyDto
                {
                    Pk1          = 2,
                    Pk2          = "B",
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleCompositeKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.MarkIsDelete,
                WhenNotMatchedDeleteFieldName   = "IsRemovable"
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService
                             .GetAllSampleDtos <SampleCompositeKeyDto>()
                             .ToArray();

            sourceDtos.Length.Should().Be(3);

            var firstDto = sourceDtos.First(x => x.Pk1 == 3);

            firstDto.IsDeleted.Should().BeFalse();
            firstDto.IsRemovable.Should().BeTrue();
        }
        public void ShouldLogErrors()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample_DOESNOTEXIST",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = false
            };

            var errorLogger = new List <string>();

            request.ErrorLogger = info => errorLogger.Add(info);

            Assert.Throws <SqlException> (() => { helper.DataService.Merge(request); });

            errorLogger.Count.Should().Be(1);
            errorLogger.Single(x => x.Contains("Invalid object name 'dbo.Sample_DOESNOTEXIST'")).Should().NotBeNull();
        }
        public void ShouldMergeWhenBulkLoadUsesRenamedFields()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKeyDifferentNamesDto
                {
                    Pk                = 100,
                    TextValueExtra    = "JJ",
                    IntValueExtra     = 100,
                    DecimalValueExtra = 100.99m
                },
                new SampleSurrogateKeyDifferentNamesDto
                {
                    Pk                = 200,
                    TextValueExtra    = "ZZ",
                    IntValueExtra     = 999,
                    DecimalValueExtra = 123.45m
                }
            };

            var request = new MergeRequest <SampleSurrogateKeyDifferentNamesDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = false,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.Delete,
                OnMergeUpdateActive             = false,
                BulkLoaderOptions               =
                    t => t.With(c => c.TextValueExtra, "TextValue")
                    .With(c => c.IntValueExtra, "IntValue")
                    .With(c => c.DecimalValueExtra, "DecimalValue")
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.TextValue == "JJ");

            firstDto.Pk.Should().BeGreaterThan(0);
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);

            var secondDto = sourceDtos.First(x => x.TextValue == "ZZ");

            secondDto.Pk.Should().BeGreaterThan(0);
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);
        }
        public void ShouldIncludePrimaryKeyInUpdate()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateCompositeKeyTable();

            var dtos = new[]
            {
                new SampleCompositeKeyDto
                {
                    Pk1          = 1,
                    Pk2          = "A",
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleCompositeKeyDto
                {
                    Pk1          = 2,
                    Pk2          = "B",
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleCompositeKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true
            };

            helper.DataService.Merge(request);

            var sampleDtos = helper.DataService.GetAllSampleDtos <SampleCompositeKeyDto>().ToArray();

            var firstDto = sampleDtos.First(x => x.Pk1 == 1);

            firstDto.Pk2.Should().Be("A");
            firstDto.TextValue.Should().Be("JJ");
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);

            var secondDto = sampleDtos.First(x => x.Pk1 == 2);

            secondDto.Pk2.Should().Be("B");
            secondDto.TextValue.Should().Be("ZZ");
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);
        }
        public void ShouldKeepIdentityColumnsWhenFlagged()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    Pk           = 100,
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleSurrogateKey
                {
                    Pk           = 200,
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = true,
                KeepIdentityColumnValueOnInsert = true
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.Pk == 100);

            firstDto.TextValue.Should().Be("JJ");
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);

            var secondDto = sourceDtos.First(x => x.Pk == 200);

            secondDto.TextValue.Should().Be("ZZ");
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);
        }
示例#6
0
        public void ShouldExecuteWithDefinedTempTableType(bool useRealTempTable)
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = useRealTempTable,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = false
            };

            var infoLogger = new List <string>();

            request.InfoLogger = info => infoLogger.Add(info);

            helper.DataService.Merge(request);

            if (useRealTempTable == false)
            {
                infoLogger.Any(x => x.Contains("##MergeObjectTemp")).Should().BeTrue();
            }

            if (useRealTempTable == true)
            {
                infoLogger.Any(x => x.Contains("dbo.MergeObjectTemp")).Should().BeTrue();
            }

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.TextValue == "JJ");

            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);
        }
        public void ShouldMergeDtoWithDerivedColumns()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKeyWithDerivedColumns
                {
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleSurrogateKeyWithDerivedColumns
                {
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleSurrogateKeyWithDerivedColumns>
            {
                DataToMerge          = dtos,
                TargetTableName      = "dbo.Sample",
                UseRealTempTable     = false,
                PrimaryKeyExpression = t => new object[] { t.Pk },
                ColumnsToExcludeExpressionOnUpdate = t => new object[] { t.ExtraColumn },
                ColumnsToExcludeExpressionOnInsert = t => new object[] { t.ExtraColumn },
                KeepPrimaryKeyInInsertStatement    = false
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.TextValue == "JJ");

            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);

            var secondDto = sourceDtos.First(x => x.TextValue == "ZZ");

            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);
        }
示例#8
0
        public void ShouldIncludePrimaryKeyInUpdate()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateCompositeKeyTable();

            var dtos = new[]
            {
                new SampleCompositeKeyDto
                {
                    Pk1          = 1,
                    Pk2          = "A",
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                }
            };

            var customSqlCommandCalled = 0;

            var request = new MergeRequest <SampleCompositeKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true,
                ExecuteSql = (connection, sql, req) =>
                {
                    customSqlCommandCalled++;
                    connection.Execute(sql, req.SqlCommandTimeout);
                }
            };

            helper.DataService.Merge(request);

            var sampleDtos = helper.DataService.GetAllSampleDtos <SampleCompositeKeyDto>().ToArray();

            customSqlCommandCalled.Should().Be(1);

            var firstDto = sampleDtos.First(x => x.Pk1 == 1);

            firstDto.Pk2.Should().Be("A");
            firstDto.TextValue.Should().Be("JJ");
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);
        }
        public void ShouldLogMajorEvents()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = false
            };

            var infoLogger = new List <string>();

            request.InfoLogger = info => infoLogger.Add(info);

            helper.DataService.Merge(request);

            infoLogger.Single(x => x.Contains("SELECT TOP(0)")).Should().NotBeNull();
            infoLogger.Single(x => x.Contains("Bulk loading data to temp table")).Should().NotBeNull();
            infoLogger.Single(x => x.Contains("CREATE CLUSTERED INDEX [IdxPrimaryKey] ON")).Should().NotBeNull();
            infoLogger.Single(x => x.Contains("MERGE INTO CTE_T AS T")).Should().NotBeNull();
            infoLogger.Single(x => x.Contains("DROP TABLE")).Should().NotBeNull();
        }
示例#10
0
        public void ShouldUpdateOnlyWhenFlagged()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            helper.DataService.Insert(new SampleSurrogateKey()
            {
                Pk           = 1,
                TextValue    = "JJ",
                IntValue     = 100,
                DecimalValue = 100.99m
            });

            helper.DataService.Insert(new SampleSurrogateKey
            {
                Pk           = 2,
                TextValue    = "ZZ",
                IntValue     = 999,
                DecimalValue = 123.45m
            });

            helper.DataService.Insert(new SampleSurrogateKey
            {
                Pk           = 3,
                TextValue    = "AA",
                IntValue     = 1,
                DecimalValue = 1
            });


            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    Pk           = 1,
                    TextValue    = "zz",
                    IntValue     = 0,
                    DecimalValue = 0
                },
                new SampleSurrogateKey
                {
                    Pk           = 2,
                    TextValue    = "zz",
                    IntValue     = 0,
                    DecimalValue = 0
                },
                new SampleSurrogateKey
                {
                    Pk           = 5,
                    TextValue    = "INSERT",
                    IntValue     = 99,
                    DecimalValue = 99.1m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepIdentityColumnValueOnInsert = true,
                KeepPrimaryKeyInInsertStatement = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.None,
                OnMergeUpdateActive             = false,
                OnMergeInsertActive             = true
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.Pk == 1);

            firstDto.TextValue.Should().Be("JJ");
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);

            var secondDto = sourceDtos.First(x => x.Pk == 2);

            secondDto.TextValue.Should().Be("ZZ");
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);

            var thirdDto = sourceDtos.First(x => x.TextValue == "INSERT");

            thirdDto.IntValue.Should().Be(99);
            thirdDto.DecimalValue.Should().Be(99.1m);
        }
        public void ShouldUpdateOnlyWhenFlagged()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateCompositeKeyTable();

            helper.DataService.Insert(new SampleCompositeKeyDto
            {
                Pk1          = 1,
                Pk2          = "A",
                TextValue    = "JJ",
                IntValue     = 100,
                DecimalValue = 100.99m
            });

            helper.DataService.Insert(new SampleCompositeKeyDto
            {
                Pk1          = 2,
                Pk2          = "B",
                TextValue    = "ZZ",
                IntValue     = 999,
                DecimalValue = 123.45m
            });

            helper.DataService.Insert(new SampleCompositeKeyDto
            {
                Pk1          = 3,
                Pk2          = "B",
                TextValue    = "AA",
                IntValue     = 1,
                DecimalValue = 1
            });


            var dtos = new[]
            {
                new SampleCompositeKeyDto
                {
                    Pk1          = 1,
                    Pk2          = "A",
                    TextValue    = "zz",
                    IntValue     = 999,
                    DecimalValue = 999m
                }
            };

            var request = new MergeRequest <SampleCompositeKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.None,
                OnMergeUpdateActive             = true
            };

            helper.DataService.Merge(request);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleCompositeKeyDto>().ToArray();

            var firstDto = sourceDtos.First(x => x.Pk1 == 1);

            firstDto.Pk2.Should().Be("A");
            firstDto.TextValue.Should().Be("zz");
            firstDto.IntValue.Should().Be(999);
            firstDto.DecimalValue.Should().Be(999);

            var secondDto = sourceDtos.First(x => x.Pk1 == 2);

            secondDto.Pk2.Should().Be("B");
            secondDto.TextValue.Should().Be("ZZ");
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);

            var thirdDto = sourceDtos.First(x => x.Pk1 == 3);

            thirdDto.Pk2.Should().Be("B");
            thirdDto.TextValue.Should().Be("AA");
            thirdDto.IntValue.Should().Be(1);
            thirdDto.DecimalValue.Should().Be(1);
        }
        public void ShouldUpdateFieldsWithMerge()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKey
                {
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleSurrogateKey
                {
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleSurrogateKey>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk },
                KeepPrimaryKeyInInsertStatement = false
            };

            helper.DataService.Merge(request);

            var firstSetOfInsertedDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstInsertDto = firstSetOfInsertedDtos.First(x => x.TextValue == "JJ");

            firstInsertDto.IntValue.Should().Be(100);
            firstInsertDto.DecimalValue.Should().Be(100.99m);

            var secondInsertDto = firstSetOfInsertedDtos.First(x => x.TextValue == "ZZ");

            secondInsertDto.IntValue.Should().Be(999);
            secondInsertDto.DecimalValue.Should().Be(123.45m);

            firstInsertDto.TextValue    = "1";
            firstInsertDto.IntValue     = 2;
            firstInsertDto.DecimalValue = 3;

            secondInsertDto.TextValue    = "2";
            secondInsertDto.IntValue     = 3;
            secondInsertDto.DecimalValue = 4;

            request.DataToMerge = firstSetOfInsertedDtos;

            helper.DataService.Merge(request);

            var secondSetOfUpdateDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstUpdateDto = secondSetOfUpdateDtos.First(x => x.TextValue == "1");

            firstUpdateDto.IntValue.Should().Be(2);
            firstUpdateDto.DecimalValue.Should().Be(3);

            var secondUpdateDto = secondSetOfUpdateDtos.First(x => x.TextValue == "2");

            secondUpdateDto.IntValue.Should().Be(3);
            secondUpdateDto.DecimalValue.Should().Be(4);
        }
        public void ShouldAllowForPartialUpdateWithPartialObject()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateCompositeKeyTable();

            var dtos = new[]
            {
                new SampleCompositeKeyDto
                {
                    Pk1          = 1,
                    Pk2          = "A",
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                }
            };

            var request = new MergeRequest <SampleCompositeKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.Delete
            };

            helper.DataService.Merge(request);

            var sampleDtos = helper.DataService.GetAllSampleDtos <SampleCompositeKeyDto>().ToArray();

            var firstDto = sampleDtos.First(x => x.Pk1 == 1);

            firstDto.Pk2.Should().Be("A");
            firstDto.TextValue.Should().Be("JJ");
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(100.99m);
            firstDto.IsDeleted.Should().BeFalse();

            //**

            var dtos2 = new[]
            {
                new SampleCompositeKeyPartialUpdateDto
                {
                    Pk1       = 1,
                    Pk2       = "A",
                    TextValue = "JJ_Partial"
                }
            };


            var request2 = new MergeRequest <SampleCompositeKeyPartialUpdateDto>
            {
                DataToMerge                     = dtos2,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = false,
                PrimaryKeyExpression            = t => new object[] { t.Pk1, t.Pk2 },
                KeepPrimaryKeyInInsertStatement = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.None,
                OnMergeUpdateActive             = true
            };

            helper.DataService.Merge(request2);

            var sampleDtos2 = helper.DataService.GetAllSampleDtos <SampleCompositeKeyDto>().ToArray();

            var firstDto2 = sampleDtos2.First(x => x.Pk1 == 1);

            firstDto2.Pk2.Should().Be("A");
            firstDto2.TextValue.Should().Be("JJ_Partial");
            firstDto2.IntValue.Should().Be(100);
            firstDto2.DecimalValue.Should().Be(100.99m);
            firstDto2.IsDeleted.Should().BeFalse();
        }
        public void ShouldAllInsertPrimaryKeyWhenSourceTableHasIdentity()
        {
            var helper = new MergeQueryObjectTestHelper();

            helper.DataService.DropTable();
            helper.DataService.CreateSingleSurrogateKeyTable();

            var dtos = new[]
            {
                new SampleSurrogateKeyDifferentNamePrimaryKeyDto
                {
                    PkPrimaryKey = 100,
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 100.99m
                },
                new SampleSurrogateKeyDifferentNamePrimaryKeyDto
                {
                    PkPrimaryKey = 200,
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 123.45m
                }
            };

            var request = new MergeRequest <SampleSurrogateKeyDifferentNamePrimaryKeyDto>
            {
                DataToMerge                     = dtos,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = true,
                PrimaryKeyExpression            = t => new object[] { t.PkPrimaryKey },
                KeepPrimaryKeyInInsertStatement = true,
                KeepIdentityColumnValueOnInsert = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.None,
                BulkLoaderOptions               =
                    t => t.With(c => c.PkPrimaryKey, "Pk")
            };

            helper.DataService.Merge(request);

            //**

            var dtosSecondRun = new[]
            {
                new SampleSurrogateKeyDifferentNamePrimaryKeyDto
                {
                    PkPrimaryKey = 100,
                    TextValue    = "JJ",
                    IntValue     = 100,
                    DecimalValue = 999.99m
                },
                new SampleSurrogateKeyDifferentNamePrimaryKeyDto
                {
                    PkPrimaryKey = 300,
                    TextValue    = "ZZ",
                    IntValue     = 999,
                    DecimalValue = 333.33m
                }
            };

            var requestSecondRun = new MergeRequest <SampleSurrogateKeyDifferentNamePrimaryKeyDto>
            {
                DataToMerge                     = dtosSecondRun,
                TargetTableName                 = "dbo.Sample",
                UseRealTempTable                = true,
                PrimaryKeyExpression            = t => new object[] { t.PkPrimaryKey },
                KeepPrimaryKeyInInsertStatement = true,
                KeepIdentityColumnValueOnInsert = true,
                WhenNotMatchedDeleteBehavior    = DeleteBehavior.None,
                BulkLoaderOptions               =
                    t => t.With(c => c.PkPrimaryKey, "Pk")
            };

            helper.DataService.Merge(requestSecondRun);

            var sourceDtos = helper.DataService.GetAllSampleDtos <SampleSurrogateKey>().ToArray();

            var firstDto = sourceDtos.First(x => x.TextValue == "JJ");

            firstDto.Pk.Should().Be(100);
            firstDto.IntValue.Should().Be(100);
            firstDto.DecimalValue.Should().Be(999.99m);

            var secondDto = sourceDtos.First(x => x.TextValue == "ZZ");

            secondDto.Pk.Should().Be(200);
            secondDto.Pk.Should().BeGreaterThan(0);
            secondDto.IntValue.Should().Be(999);
            secondDto.DecimalValue.Should().Be(123.45m);
        }