Android SQLite not returning data for given search term - android-sqlite

Question

I am trying to build a search interface but the SQLite database returns nothing here is the code for search function
public List<DiaryModel> searchData(String srchTerm){
List<DiaryModel> data2=new ArrayList<>();
SQLiteDatabase db1 = this.getWritableDatabase();
String sql="SELECT * FROM "+DB_TABLE+" WHERE "+KEY_HEADING+" LIKE '"+srchTerm+"%'";
Cursor cursor2 =db1.rawQuery(sql,null);
cursor2.moveToFirst();
StringBuilder stringBuffer2;
stringBuffer2 = new StringBuilder();
DiaryModel diaryModel2;
while (cursor2.moveToNext()){
diaryModel2 = new DiaryModel();
String heading = cursor2.getString(cursor2.getColumnIndexOrThrow("heading"));
String desc = cursor2.getString(cursor2.getColumnIndexOrThrow("desc_"));
diaryModel2.setHeading(heading);
diaryModel2.setDesc(desc);
stringBuffer2.append(diaryModel2);
data2.add(diaryModel2);
}
return data2;
}
but when I print everything the Database returns data, here is the code for get Data used for printing data present in Database
public List<DiaryModel> getdata(){
List<DiaryModel> data=new ArrayList<>();
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor =db.rawQuery("SELECT * FROM diary_db", null);
cursor.moveToFirst();
StringBuilder stringBuffer = new StringBuilder();
DiaryModel diaryModel;
while (cursor.moveToNext()){
diaryModel = new DiaryModel();
String heading = cursor.getString(cursor.getColumnIndexOrThrow(KEY_HEADING));
String desc = cursor.getString(cursor.getColumnIndexOrThrow(KEY_DESC));
diaryModel.setHeading(heading);
diaryModel.setDesc(desc);
stringBuffer.append(diaryModel);
data.add(diaryModel);
}
return data
}
The thing is only this SQL statement is working
SELECT * FROM diary_db
and if any condition is put nothing returns.

Answer 1

There is something that you are doing wrong in both methods:
cursor.moveToFirst();
and then:
while (cursor.moveToNext()){
.................
}
This way you miss the 1st row of the results, because after you move the cursor to the 1st row, you move once again to the next row.
So delete this:
cursor.moveToFirst();
from both methods.