公共静态最终诠释Database_version = 2个 私有静态最后弦乐SQL_CREATE_ENTRIES = “CREATE TABLE” + TableData.TableInfo.TABLE_NAME + “(” + TableData.TableInfo.USER_ID +“INTEGER PRIMARY KEY”+ TableData.TableInfo.USER_PASS +“TEXT”+“,”+ TableData.TableInfo.USER_EMAIL +“TEXT”+“)”;创建数据库表,但无法找到Android的SQLite的
public DatabaseOperations(Context context) {
super(context, TableData.TableInfo.DATABASE_NAME, null, Database_version);
Log.d("Tag", "Database created");
};
@Override
public void onCreate(SQLiteDatabase sdb) {
sdb.execSQL(SQL_CREATE_ENTRIES);
Log.d("Tag", "Table created");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public void putInformation(DatabaseOperations drop, String name, String pass, String email) {
SQLiteDatabase SQ = drop.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(TableData.TableInfo.USER_ID, name);
cv.put(TableData.TableInfo.USER_PASS, pass);
cv.put(TableData.TableInfo.USER_EMAIL, email);
long k = SQ.insert(TableData.TableInfo.TABLE_NAME, null, cv);
Log.d("Tag", "inert a row");
}
public Cursor getInformation(DatabaseOperations dop) {
SQLiteDatabase SQ = dop.getReadableDatabase();
String[] coloumns = {TableData.TableInfo.USER_ID, TableData.TableInfo.USER_PASS, TableData.TableInfo.USER_EMAIL};
Cursor CR = SQ.query(TableData.TableInfo.TABLE_NAME, coloumns, null, null, null, null, null);
return CR;
}
}
关注该https://www.tutorialspoint.com/android/android_sqlite_database.htm – Tauqir