Entity Framework. Delete all rows in table

Question

How I can quickly remove all rows in table using Entity Framework?

I am currently using:

var rows = from o in dataDb.Table
           select o;
forea         


        

Answer 1

The following works on SQLite database (using Entity Framework)

It seems that the fastest way to clear all the db tables is using 'context.Database.ExecuteSqlCommand("some SQL")', as some comments above highlighted as well. Here I am going to show how to reset the 'index' count of tables too.

            context.Database.ExecuteSqlCommand("delete from TableA");
            context.Database.ExecuteSqlCommand("delete from sqlite_sequence where name='TableA'");//resets the autoindex

            context.Database.ExecuteSqlCommand("delete from TableB");
            context.Database.ExecuteSqlCommand("delete from sqlite_sequence where name='TableB'");//resets the autoindex 

            context.Database.ExecuteSqlCommand("delete from TableC");
            context.Database.ExecuteSqlCommand("delete from sqlite_sequence where name='TableC'");//resets the autoindex 

One important point is that if you use foreign keys in your tables, you must first delete the child table before the parent table, so the sequence (hierarchy) of tables during deletion is important, otherwise a SQLite exception may occur.

Note: var context = new YourContext()