0
私は与えられた手順に従っているデータベースを作成していますが、データを別々の列に挿入する必要があります。配列し、それらをデータベースに挿入する必要がありますか?はいの場合はどうやって?同じようにすることで、私は他のテーブルのデータと一致させる/検索します。テーブルが増えています。 どんな種類のヘルプ/提案も本当に感謝しています。モデルクラスを使用してsqliteテーブルにarrayListを保存する
テーブルに値を追加するようなものです:
public void addMidSemQuestions(MidSemQuestions midSemQuestions)
{
openWritable();
m_sqLiteDatabase.beginTransaction();
try {
ContentValues values = new ContentValues();
values.put(KEY_SEM_ID, midSemQuestions.getId());
values.put(KEY_SUBJECT, midSemQuestions.getSubject());
values.put(KEY_QUESTION_ID, midSemQuestions.getQuestion_id());
values.put(KEY_QUESTION, midSemQuestions.getQuestion());
// Notice how we haven't specified the primary key. SQLite auto increments the primary key column.
m_sqLiteDatabase.insertOrThrow(MID_SEM_QUESTION_TABLE, null, values);
m_sqLiteDatabase.setTransactionSuccessful();
}catch (Exception e)
{
Log.d(LOG,"Error while trying to add mid sem questions to database");
}finally {
m_sqLiteDatabase.endTransaction();
}
}
と私のモデルクラスのようなものです:
public class MidSemQuestions
{
public int id;
public int sem_id;
public int sub_id;
public int marks_id;
public int question_id;
public String subject;
public String question;
public MidSemQuestions() {
}
public MidSemQuestions(int sem_id, int sub_id, int marks_id, int question_id, String subject,String question) {
this.sem_id = sem_id;
this.sub_id = sub_id;
this.marks_id = marks_id;
this.question_id = question_id;
this.subject=subject;
this.question = question;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public int getSub_id() {
return sub_id;
}
public void setSub_id(int sub_id) {
this.sub_id = sub_id;
}
public int getSem_id() {
return sem_id;
}
public void setSem_id(int sem_id) {
this.sem_id = sem_id;
}
public int getMarks_id() {
return marks_id;
}
public void setMarks_id(int marks_id) {
this.marks_id = marks_id;
}
public int getQuestion_id() {
return question_id;
}
public void setQuestion_id(int question_id) {
this.question_id = question_id;
}
public String getQuestion() {
return question;
}
public void setQuestion(String question) {
this.question = question;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
と私はそのためので、私はデータを入力する必要があります次のようにする:
public void prepareDatabase()
{
final CDataSource cDataSource= new CDataSource(this);
if(cDataSource.getMidSemQuestionCount()==0)
{
//sem_id=1,sub_id=1,marks=2,
//que_id should be an array of 1 to 90,
//subject must be an array of strings,
//question also should be an array of strings
cDataSource.addMidSemQuestions(new MidSemQuestions(1,1,2,1,"C Programming","What are the data types?"));
//sem_id=1,sub_id=1,marks=5,que_id should be an array of 1 to 90,subject must be an array of strings,question also should be an array of strings
cDataSource.addMidSemQuestions(new MidSemQuestions(1,1,5,11,"C Programming","Difference b/w call by value?"));
//sem_id=1,sub_id=1,marks=10,que_id should be an array of 1 to 90,subject must be an array of strings,question also should be an array of strings
cDataSource.addMidSemQuestions(new MidSemQuestions(1,1,2,1,"C Programming","What are the data types?"));
}
}