I couldn't use attach DATABASE in ANDROID -


insert 1 database table database table in android [duplicate]

how can use insert into/select 1 database table database table. more explanation have 1 data base "userdb" name , "usertble" table , another-one "worddb" name , "wordstble" table name.

 public class profiledbhelper extends sqliteopenhelper {
  private sqlitedatabase pdb;  public profiledbhelper(context context) {     super(context, dbname, null, 1); }  @override public void oncreate(sqlitedatabase db) {  }  @override public void onupgrade(sqlitedatabase db, int oldversion, int newversion) {  }  public void createprofiledb(string user) {      tblname = user + "tbl";     string createtbl = "create table if not exists " + tblname + " ("             + id + " integer primary key autoincrement, "             + wordid + " integer not null, "             + book + " text not null, " + lesson + " text not null, "             + question + " text not null, " + answer + " text not null, "             + accent + " text, " + option1 + " text, "             + option2 + " text, " + option3 + " text, "             + option4 + " text, " + option5 + " text, "             + trueoption + " integer, " + englishsen1 + " text, "             + englishsen2 + " text, " + englishsen3 + " text, "             + persiansen1 + " text, " + persiansen2 + " text, "             + persiansen3 + " text, " + firstshow + " text, "             + noofshow + " integer, " + stepno + " integer, "             + trueno + " integer, " + wrongno + " integer, "             + nextshow + " text);";      pdb = this.getwritabledatabase();     pdb.execsql(createtbl);     pdb.execsql("attach database ? wordb", new string[]{"/data/data/com.etudedevelopres.etude/databases/worddb"}); }

could please me. problem caused many headaches me. searched , @ around around 30 similar questions, nut non of couldn't me , know understanding problem.


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