無法從SQLite中刪除記錄iPhone

當我在iPhone模擬器中運行此代碼時，我無法從數據庫中刪除記錄。如果我在SQLite數據庫瀏覽器中運行這個查詢，它效果很好。這裏是我的代碼無法從SQLite中刪除記錄iPhone

SQLiteDB *sqliteConnect=[[SQLiteDB alloc] init]; 
sqlite3 *database; 

if(sqlite3_open([sqliteConnect.databasePath UTF8String], &database)==SQLITE_OK) 
{ 
    sqlite3_stmt *compiledstatement; 

    const char *sqlstmt="delete from searchHistory where id = (select min(id) from searchHistory) "; 

    if(sqlite3_prepare_v2(database, sqlstmt, -1, &compiledstatement, NULL)==SQLITE_OK) 
    { 
     sqlite3_step(compiledstatement); 

     if(SQLITE_DONE != sqlite3_step(compiledstatement)) 

      NSAssert1(0,@"Error while creating delete statement => %s",sqlite3_errmsg(database)); 
    } 
    NSLog(@"delete DONE"); 
    sqlite3_finalize(compiledstatement); 
} 
sqlite3_close(database);

當我運行使用調試器，我得到以下錯誤=>

2011-04-08 08:42:34.049 MyApp[1838:20b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error while creating delete statement => not an error'

SQLiteDB是我的類，它包含init的& checkAndCopyDB方法的邏輯。我的數據庫被複制到文檔目錄中。其他數據庫操作正常。請幫幫我。謝謝

來源

2011-04-07 iOSAppDev

你打給sqlite3_step兩次？

試試這個：

{ 
    int result = sqlite3_step(compiledstatement); 

    if(SQLITE_DONE != result) 

     NSAssert1(0,@"Error while creating delete statement => %s",sqlite3_errmsg(database)); 
}

來源

2011-04-07 16:44:57 deanWombourne

=>謝謝...它完美.. – iOSAppDev 2011-04-07 16:52:54

也許嘗試：

if(SQLITE_DONE != sqlite3_step(compiledstatement)) 
    NSAssert1(0,@"Error while creating delete statement => %s",sqlite3_errmsg(database));

來源

2011-04-07 16:48:44 FreeAsInBeer

感謝您的答覆... deanWombourne解決方案爲我工作。 – iOSAppDev 2011-04-07 16:52:03

無法從SQLite中刪除記錄iPhone

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