DropIndex is used to drop an existing index of a table in a database. This method may needs some privilege according to the database product and its version. Examples Following section demonstrates DROP-INDEX of the table(s).

        using(var exc = cn.Executer()) 
        {
			// by table alias
			var t0 = new Orders().AsQueryable();
			exc.DropIndex(t0, t0.Indexes.First());

			// by table type
			exc.DropIndex<Orders>("index_name");

			// by table name
			exc.DropIndex("table1", "index_name");
        }

MsSql
DROP INDEX IF EXISTS [Index] ON [Table]

MySql
DROP INDEX [Index] ON [Table]

PostgreSql
DROP INDEX IF EXISTS [Index]

Oracle
DROP INDEX [Index] vFa43T