android - SQLite is not deleting rows -

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i have table in database, created way:

private static string crea_fichas="create table fichas ("+         "provincia varchar (40), "+         "municipio varchar (40), "+         "distrito varchar (40), "+         "codficha integer, "+         "codagente integer, "+         "domitri varchar(80), "+         "domfiscal varchar(80), "+         "ciernc varchar(13), "+         "nombrecompleto varchar (255), "+         "telf1 varchar(12), "+         "telf2 varchar(12), "+         "fax varchar(12), "+         "razonsocial varchar(255), "+         "nombrecomercial varchar(255), "+         "email varchar(50), "+         "codexpediente integer, "+         "croquis bytea, "+         "codtipoactividad integer, "+         "primary key(codficha), "+         "foreign key (codtipoactividad) references tiposactividades(codtipoactividad), " +         "foreign key (codexpediente) references expedientes (codexpediente), "+         "foreign key (codagente) references agentes(codagente));";

later in program, want this:

private void deleteexpediente(long codficha) {      cursor cursorborra=db.rawquery("delete fichas codficha='"+codficha+"'", null);     dbhelper.copiardb();  }

but, way, none row affected. have checked codficha exists, database not null, etc. no exception thrown, simply...row not deleted. copiardb() method copy database location in device (is not rooted, cannot see database) , there check row has not been deleted.

any idea why cannot delete row? thank you.

db.delete("fitcas", "codficha = ?", new string[] { integer.tostring(codficha) });

a rawquery returns cursor of result set, reference query results. should using straight delete() call. take @ documentation:

http://developer.android.com/reference/android/database/sqlite/sqlitedatabase.html

or sqlitestatement:

http://developer.android.com/reference/android/database/sqlite/sqlitestatement.html


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