cursor getint 0
rawQuery() always returns a valid Cursor , or throws an exception. Checking for null cursor is not a way to check whether there are results. Instead, check the ... ,Best code snippets using android.database.Cursor.getInt(Showing top 20 results ... null, null, null); countCursor.moveToFirst(); int count = countCursor.getInt(0);. , moveToNext()方法才能开始取数据,需要使用while循环while(cursor. ... 从0开始<十三>:getint()函数(类似于scanf函数)以及库函数strncpy、strncat ..., getAll(); //取得SQLite類別的回傳值:Cursor物件 int rows_num = cursor. ... getInt(0); //取得第0欄的資料,根據欄位type使用適當語法 String name ...,The most likely reason is the item at index "0" is not an Integer. Another reason is the Cursor itself may be empty. Finally, you probably have to check if there is ... ,Try with this if (c.moveToFirst()) do value = c.getInt(0); } while (c.moveToNext()); }. For others who have similar problems even after using code above ... , You have to use cursor.moveToFirst() before querying the first row from the cursor. Change your if statement to: if (cursor != null && cursor.,Returns the zero-based index for the given column name, or -1 if the column ..... as documented in the get-type methods such as getInt(int) , getFloat(int) etc. , moveToFirst() returns false in case the cursor is empty so the if won't be ... if you're trying to get the first column of the query, you should put 0., if(cursor.getCount() == 0). mUserDb.execSQL("CREATE TABLE " + ... 基本上會是連續的,但是不同欄位的type 不同,因此會需要使用getInt() 或 ...
相關軟體 SQLite 資訊 | |
---|---|
SQLite 是一個實現自包含,無服務器,零配置,事務 SQL 數據庫引擎的進程內庫。 SQLite 的代碼是在公共領域,因此可以用於任何目的,商業或私人。 SQLite 是世界上應用最廣泛的數據庫,比我們可以計數的應用程序還要多,其中包括幾個備受矚目的項目。選擇版本:SQLite 3.21.0(32 位)SQLite 3.20.1(64 位) SQLite 軟體介紹
cursor getint 0 相關參考資料
Android cursor.getInt - Stack Overflow
rawQuery() always returns a valid Cursor , or throws an exception. Checking for null cursor is not a way to check whether there are results. Instead, check the ... https://stackoverflow.com android.database.Cursor.getInt java code examples | Codota
Best code snippets using android.database.Cursor.getInt(Showing top 20 results ... null, null, null); countCursor.moveToFirst(); int count = countCursor.getInt(0);. https://www.codota.com Android中cursor.getInt()返回值的坑- WJ S的专栏- CSDN博客
moveToNext()方法才能开始取数据,需要使用while循环while(cursor. ... 从0开始<十三>:getint()函数(类似于scanf函数)以及库函数strncpy、strncat ... https://blog.csdn.net Android開發筆記-使用Cursor讀取SQLite回傳值– 摩刻部落 - Davina
getAll(); //取得SQLite類別的回傳值:Cursor物件 int rows_num = cursor. ... getInt(0); //取得第0欄的資料,根據欄位type使用適當語法 String name ... https://www.moke.tw app crashes with cursor.getInt() - Stack Overflow
The most likely reason is the item at index "0" is not an Integer. Another reason is the Cursor itself may be empty. Finally, you probably have to check if there is ... https://stackoverflow.com Cursor always returns 0 from SQL Queries - Stack Overflow
Try with this if (c.moveToFirst()) do value = c.getInt(0); } while (c.moveToNext()); }. For others who have similar problems even after using code above ... https://stackoverflow.com Cursor getString() or getInt() doesn't return the value at given ...
You have to use cursor.moveToFirst() before querying the first row from the cursor. Change your if statement to: if (cursor != null && cursor. https://stackoverflow.com Cursor | Android Developers
Returns the zero-based index for the given column name, or -1 if the column ..... as documented in the get-type methods such as getInt(int) , getFloat(int) etc. https://developer.android.com Cursor.getInt() throws CursorIndexOutOfBoundsException - Stack ...
moveToFirst() returns false in case the cursor is empty so the if won't be ... if you're trying to get the first column of the query, you should put 0. https://stackoverflow.com [Android] SQLite的基本用法– SteveZhong's blog
if(cursor.getCount() == 0). mUserDb.execSQL("CREATE TABLE " + ... 基本上會是連續的,但是不同欄位的type 不同,因此會需要使用getInt() 或 ... https://wlzhong.wordpress.com |