cursor getcount ;
我读取一个RAW下的数据库，cursor可以查出列名，但是查不出来行里的数据， cursor.getCount()返回0，但是cursor.getColumnCount()能返回正常的5.ps：用的SQL ... ,new String[] _id }); boolean exists = (cursor.getCount() > 0);
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 cursor getcount ; 相關參考資料
Android get an int for Android cursor.getCount() - Stack Overflow
May be cursor.getCount() returns 0 and thats why the if is not being executed. Replace if (rows < 0). with if (rows <= 0). And, according to the docs, by default ... https://stackoverflow.com Android SQLite求帮助。。cursor.getCount()返回0，但列名能查 ...
我读取一个RAW下的数据库，cursor可以查出列名，但是查不出来行里的数据， cursor.getCount()返回0，但是cursor.getColumnCount()能返回正常的5.ps：用的SQL ... https://bbs.csdn.net android.database.Cursor.getCount java code examples | Codota
new String[] _id }); boolean exists = (cursor.getCount() > 0); https://www.codota.com Android: cursor.getCount() - Stack Overflow
If the cursor is empty, moveToFirst will be false. https://stackoverflow.com Android中的Cursor_移动开发_liranke的专栏-CSDN博客
返回一个字符串数组的列名 getCount() 返回Cursor 中的行数 moveToFirst() 移动光标到第一行 moveToLast() 移动光标到最后一行 moveToNext() https://blog.csdn.net Cursor | Android Developers
跳到 getCount - getCount. Added in API level 1. public abstract int getCount (). Returns the numbers of rows in the cursor. https://developer.android.com Is SQLite cursor.getCount expensive operation in Android ...
If you compare the time required for both code samples to execute, you'll notice it's the same because Cursor.moveToFirst() is eventually calling SQLiteCursor. https://stackoverflow.com Java Code Examples android.database.Cursor.getCount
This page provides Java code examples for android.database.Cursor.getCount. The examples are extracted from open source Java projects. https://www.programcreek.com Java Cursor.getCount方法代碼示例- 純淨天空
本文整理匯總了Java中android.database.Cursor.getCount方法的典型用法代碼示例。如果您正苦於以下問題：Java Cursor.getCount方法的具體用法？Java Cursor. https://vimsky.com [Android] SQLite的基本用法– Blue's blog
+ DB_TABLE + "'", null);. if(cursor != null). // 若沒有資料表. if(cursor.getCount() == 0). mUserDb.execSQL("CREATE TABLE " + DB_TABLE + " (". https://wlzhong.wordpress.com |