``我的sqLite数据库中有两个表，第一个表工作正常，但是我无法将数据插入第二个表中。我只有一个dbadapter类，并且在我的onCreate()方法中使用contentValues在两个表中插入数据。
我几乎尝试了所有方法使其正常工作，但一切似乎都没用，这是我的dbadapter代码。
public class MainData {
private static final String DATABASE_NAME = "Homeomedicaldb";
private static final int DATABASE_VERSION = 3;
private static final String DATABASE_TABLE1 = "basic_table";
private static final String KEY_ID = "sym_id";
private static final String KEY_NAME = "sym_detail_name";
private static final String DATABASE_TABLE2 = "detail_table";
private static final String KEY_SYM_ID = "sym_previous_id";
private static final String KEY_DET_ID = "sym_detail_id";
private static final String KEY_SYMP_DETAIL = "sym_details";
private static final String KEY_MEDICINE = "medicine_name";
private static final String CREATE_DATABASE_TABLE1 = "CREATE TABLE IF NOT EXISTS " + DATABASE_TABLE1 + " (" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_NAME + " TEXT NOT NULL);";
private static final String CREATE_DATABASE_TABLE2 = "CREATE TABLE IF NOT EXISTS " + DATABASE_TABLE2 + " (" + KEY_DET_ID + " INTEGER PRIMARY KEY, " + KEY_SYMP_DETAIL + " text not null, " + KEY_MEDICINE + " text not null, " + KEY_SYM_ID + " integer, "+ " FOREIGN KEY ("+KEY_SYM_ID+") REFERENCES "+DATABASE_TABLE1+" ("+KEY_ID+"));" ;
private DbHelper ourHelper;
private final Context ourContext;
private static SQLiteDatabase ourDatabase;
private static class DbHelper extends SQLiteOpenHelper {
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
// TODO Auto-generated constructor stub
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL(CREATE_DATABASE_TABLE1);
db.execSQL(CREATE_DATABASE_TABLE2);
db.execSQL("PRAGMA foreign_keys = ON;");
ContentValues values = new ContentValues();
values.put(KEY_ID, "1");
values.put(KEY_NAME, "headache");
db.insert(DATABASE_TABLE1, null, values);
values.put(KEY_ID, "2");
values.put(KEY_NAME, "abdominal pain");
db.insert(DATABASE_TABLE1, null, values);
values.put(KEY_ID, "3");
values.put(KEY_NAME, "eye infection");
db.insert(DATABASE_TABLE1, null, values);
values.put(KEY_ID, "4");
values.put(KEY_NAME, "skin pimples");
db.insert(DATABASE_TABLE1, null, values);
values.put(KEY_ID, "5");
values.put(KEY_NAME, "infection");
db.insert(DATABASE_TABLE1, null, values);
ContentValues new_values = new ContentValues();
new_values.put(KEY_DET_ID, "1.1");
new_values.put(KEY_SYMP_DETAIL, "eye;inflammation;with headache");
new_values.put(KEY_MEDICINE, "lycopodium");
new_values.put(KEY_SYM_ID, "1");
return ourDatabase.insert(DATABASE_TABLE2, null, new_values);
new_values.put(KEY_DET_ID, "1.2");
new_values.put(KEY_SYMP_DETAIL, "nose;pain;with headache");
new_values.put(KEY_MEDICINE, "lycopodium");
new_values.put(KEY_SYM_ID, "1");
db.insert(DATABASE_TABLE2, null, new_values);
new_values.put(KEY_DET_ID, "1.3");
new_values.put(KEY_SYMP_DETAIL, "perspiration;cold;with headache");
new_values.put(KEY_MEDICINE, "lycopodium");
new_values.put(KEY_SYM_ID, "1");
db.insert(DATABASE_TABLE2, null, new_values);
new_values.put(KEY_DET_ID, "1.4");
new_values.put(KEY_SYMP_DETAIL, "face;heat;with headache");
new_values.put(KEY_MEDICINE, "lycopodium");
new_values.put(KEY_SYM_ID, "1");
db.insert(DATABASE_TABLE2, null, new_values);
new_values.put(KEY_DET_ID, "1.5");
new_values.put(KEY_SYMP_DETAIL, "perspiration;with headache");
new_values.put(KEY_MEDICINE, "lycopodium");
new_values.put(KEY_SYM_ID, "1");
db.insert(DATABASE_TABLE2, null, new_values);
}
这是即时通讯用来显示第二张表格结果的方法
public String getDetail() {
// TODO Auto-generated method stub
String[] columns2 = new String[]{ KEY_DET_ID, KEY_SYMP_DETAIL, KEY_MEDICINE, KEY_SYM_ID };
Cursor v = ourDatabase.query(DATABASE_TABLE2, columns2, null, null, null, null, null);
String result_new= "";
int iSym= v.getColumnIndex(KEY_SYM_ID);
int iName = v.getColumnIndex(KEY_DET_ID);
int iDetail = v.getColumnIndex(KEY_SYMP_DETAIL);
int iMedicine = v.getColumnIndex(KEY_MEDICINE);
for(v.moveToFirst(); !v.isAfterLast(); v.moveToNext()) {
result_new= result_new+ v.getString(iSym)+ " " + v.getString(iName)+ " " + v.getString(iDetail)+ " " + v.getString(iMedicine) + "\n" ;
}
return result_new;
}
这是logcat
07-31 06:52:38.731: W/IInputConnectionWrapper(1263): showStatusIcon on inactive InputConnection
07-31 06:52:44.221: I/Choreographer(1263): Skipped 90 frames! The application may be doing too much work on its main thread.
07-31 06:55:18.651: D/gralloc_goldfish(1319): Emulator without GPU emulation detected.
07-31 06:55:19.481: I/Choreographer(1319): Skipped 86 frames! The application may be doing too much work on its main thread.
07-31 06:55:22.271: I/Choreographer(1319): Skipped 44 frames! The application may be doing too much work on its main thread.
07-31 06:55:39.381: I/Choreographer(1319): Skipped 65 frames! The application may be doing too much work on its main thread.
07-31 06:56:22.861: I/Choreographer(1319): Skipped 32 frames! The application may be doing too much work on its main thread.
07-31 06:56:32.331: I/Choreographer(1319): Skipped 39 frames! The application may be doing too much work on its main thread.
07-31 08:00:56.271: I/Choreographer(1319): Skipped 98 frames! The application may be doing too much work on its main thread.
07-31 08:01:00.841: I/Choreographer(1319): Skipped 72 frames! The application may be doing too much work on its main thread.
07-31 08:01:28.291: I/Choreographer(1319): Skipped 75 frames! The application may be doing too much work on its main thread.
07-31 08:01:45.241: I/Choreographer(1319): Skipped 96 frames! The application may be doing too much work on its main thread.
07-31 08:20:01.821: I/Choreographer(1319): Skipped 31 frames! The application may be doing too much work on its main thread.
解决方案：
我得到了这个问题的解决方案，将其发布可能对其他人有所帮助，我只是更改了数据库的名称，并且代码工作正常。这是因为SQLiteOpenHelper在注册要更改的数据库时似乎有些麻烦。它会找到一个具有相同名称和版本号的数据库，并显示“ meh”，并且根本不会查看结构是否有所不同。
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