Question

我想在我的Android应用程序中删除我的SQLite数据库中选定的记录。但我不能这样做，并在程序运行时获得异常。

以下是我要删除特定选定记录的内容。

 public void deleteRecord(String datarecord)
   {
       this.db.delete(TABLE_NAME, "name="+datarecord , null);
   }

这就是我在执行所选记录的删除操作的点击事件中所做的。

dh.deleteRecord(FavMusicList[position]);

dh是我的DataHelper类的对象，我在其中创建了deleteRecord函数。

我收到语法错误的SQLite异常。所以我想我肯定错误地使用语法来删除特定选择记录，但无法知道我究竟需要纠正什么。

有人可以帮我吗？

谢谢，大卫

我的堆栈跟踪：

12-22 14:39:37.892: ERROR/AndroidRuntime(676): FATAL EXCEPTION: main
12-22 14:39:37.892: ERROR/AndroidRuntime(676): android.database.sqlite.SQLiteException: near "very": syntax error: , while compiling: DELETE FROM table1 WHERE name=Iâm very drunk
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:64)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:36)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1145)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.database.sqlite.SQLiteDatabase.delete(SQLiteDatabase.java:1589)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at com.android.soundmachine.DataHelper.deleteRecord(DataHelper.java:42)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at com.android.soundmachine.FavoritesListing$SoundMacHineAdapter$1$1.onClick(FavoritesListing.java:192)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:158)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.os.Looper.loop(Looper.java:123)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at android.app.ActivityThread.main(ActivityThread.java:4627)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at java.lang.reflect.Method.invokeNative(Native Method)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at java.lang.reflect.Method.invoke(Method.java:521)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-22 14:39:37.892: ERROR/AndroidRuntime(676):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

DELETE FROM table1 WHERE name =Iâm 醉

不允许有空格。你应该在WHERE子句中给出引用或双引号。

Answer 2

在SQLite中使用字符串匹配时，请将其保留在单个引用'匹配字符串'

中

不需要整数或数字引用..

DELETE FROM table1 WHERE name='Iâm very drunk'

查询从android中的SQLite数据库中删除特定记录

2 个答案: