android sqlite cursor while

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android sqlite cursor while

Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.view.Menu; import android.widget.TextView ...,I might be missing something here, wouldn't you have a nested loop. The outer loop cycles through each records: while (cursor.moveToNext()) ... // inner loop ... , Returns the value of the requested column as a byte array. The result and whether this method throws an exception when the column value is null ..., When a cursor is returned from a query() method, its position points to the spot before the first row of data. This means that before any rows of ..., Cursor cursor = db.rawQuery(select_query, null); if (cursor.moveToFirst()) do grupo = cursor.getString(0); grupos.add(grupo); } while (cursor., Cursor objects returned by database queries are positioned before the first entry, therefore iteration can be simplified to: while (cursor., SQLiteCursor is not internally synchronized so code using a ... this method could execute a query on the database and potentially take a while, ...,The simplest way is this: while (cursor.moveToNext()) ... } The cursor starts before the first result row, so on the first iteration this moves to the first result if it ... , 在你理解和使用Android Cursor 的時候你必須先知道關於Cursor 的幾件事情: Cursor 是每行的集合。 ... 如果你喜歡用for 迴圈而不想用While 迴圈可以使用Google 提供的幾下方法: isBeforeFirst() ... MockCursor SQLiteCursor 5.

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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

android sqlite cursor while 相關參考資料
android - SQLite查詢資料及使用Cursor物件@ Will的部落格:: 痞 ...

Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.view.Menu; import android.widget.TextView ...

https://hungwei0331.pixnet.net

Android SQLite Query and using cursor to deal with multiple ...

I might be missing something here, wouldn't you have a nested loop. The outer loop cycles through each records: while (cursor.moveToNext()) ... // inner loop ...

https://stackoverflow.com

Cursor | Android Developers

Returns the value of the requested column as a byte array. The result and whether this method throws an exception when the column value is null ...

https://developer.android.com

Cursors | Working with Databases in Android | InformIT

When a cursor is returned from a query() method, its position points to the spot before the first row of data. This means that before any rows of ...

https://www.informit.com

Iterate cursor inside for loop SQLite android - Stack Overflow

Cursor cursor = db.rawQuery(select_query, null); if (cursor.moveToFirst()) do grupo = cursor.getString(0); grupos.add(grupo); } while (cursor.

https://stackoverflow.com

Iterate through rows from Sqlite-query - Stack Overflow

Cursor objects returned by database queries are positioned before the first entry, therefore iteration can be simplified to: while (cursor.

https://stackoverflow.com

SQLiteCursor | Android Developers

SQLiteCursor is not internally synchronized so code using a ... this method could execute a query on the database and potentially take a while, ...

https://developer.android.com

What's the best way to iterate an Android Cursor? - Stack ...

The simplest way is this: while (cursor.moveToNext()) ... } The cursor starts before the first result row, so on the first iteration this moves to the first result if it ...

https://stackoverflow.com

完美Android Cursor使用例子(Android資料庫操作) - IT閱讀

在你理解和使用Android Cursor 的時候你必須先知道關於Cursor 的幾件事情: Cursor 是每行的集合。 ... 如果你喜歡用for 迴圈而不想用While 迴圈可以使用Google 提供的幾下方法: isBeforeFirst() ... MockCursor SQLiteCursor 5.

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