.NET GENES

Good evening. Here's a simple demo on how to remove duplicate items in a List object using IEqualityComparer given that the generic list's type is complex. First we setup a simple model Employee class with Age, Name and Address properties. class Employee { public int Age { get ; set ; } public string Name { get ; set ; } public string Address { get ; set ; } } Next is to create a comparer class that implements IEqualityComparer interface. class EmployeeComparer : IEqualityComparer<Employee> { public bool Equals(Employee emp1, Employee emp2) { if (Object.ReferenceEquals(emp1, emp2)) return true ; if (Object.ReferenceEquals(emp1, null ) || Object.ReferenceEquals(emp2, null )) return false ; return (emp1.Age == emp2.Age) && (emp1.Name == emp2.Name) && (emp1.Address == emp2.Address); } public int GetHashCode(Employee obj) { ...

I have been generating insert data scripts through SQL Server Management Studio on the fly. However if you don't want to include the ID which is an identity column,this feature is not defined in the IDE. The workaround for this is to insert the records without the ID column into a temporary table and generate insert data scripts using that temp table. Select PartNum, PartDescription, Model, Category, SaleQTY, Price Into tmptblParts From tblParts The query above will insert records from tblParts to temp table tmptblParts. The column ID is omitted. After you have executed that statement, then generate insert scripts using tmptblParts.

Given that you'll have to delete records from an SQL server history table, you might come across with the issue as mentioned in the title of the post. After doing some research and experiments, there are three steps to delete records from a temporal history table. a. First is to remove the main table's System Versioning option. ALTER TABLE [dbo].[tblParts] SET ( SYSTEM_VERSIONING = OFF ) b. Next is to delete the records of the temporal history table. Delete from dbo.tblPartsHistory WITH (TABLOCKX); c. Then Set again the system versioning and history table of the main table. ALTER TABLE [dbo].[tblParts] SET ( SYSTEM_VERSIONING = ON (HISTORY_TABLE = [dbo].[tblPartsHistory])) Solved.. :-)

Hello, I was working on a project that reads an MS Access database using C# using OLEDB Provider. I already have downloaded and installed the Microsoft Access Database Engine 2010 Redistributable (AccessDatabaseEngine_X64.exe) from Microsoft since my OS is Windows 10 64bit. Upon running the project, I encountered the error as mentioned in the title of this post. I've tried several solutions and it didn't work for me. The only fix that worked is to change the Platform target of the project to "Any CPU" and unchecked the Prefer 32-bit checkbox . Cheers! :)