Xcode，iPhone上非常奇怪的SQLite SQL选择类问题

我已经为我的iPhone制作了一个SQLite应用程序。 当我在iMac上放置的SQLite DB上测试SELECT时，一切正常，但在iPhone上，我没有返回任何行

SELECT ID, SAP_PART_NR, SAP_DESC, MOQ, INC, NLT, DISCOUNT_CODE, AD_EURO, AD_USD, OEM_EURO, OEM_USD FROM Component WHERE SAP_PART_NR LIKE '%AWM423%' LIMIT 200

现在是奇怪的部分 当我在iPhone上使用下面的select时，会返回一条带有SAP_PART_NRAWM42300V的记录

SELECT ID, SAP_PART_NR, SAP_DESC, MOQ, INC, NLT, DISCOUNT_CODE, AD_EURO, AD_USD, OEM_EURO, OEM_USD FROM Component WHERE SAP_PART_NR LIKE '%AWM42%' LIMIT 200

在iMac上测试时，这两个选项都会返回一行（它们应该返回）

这是iPhone/SQlite上的某种bug吗

我想不出来……我的头发都变白了-(

非工作代码（未选择行） 已选择工作代码1行

+（void）getInitialDataToDisplay:（NSString*）dbPath{
AppDelegate*AppDelegate=（AppDelegate*）[[UIApplication sharedApplication]委托]；
sqlite3_stmt*selectstmt=NULL；
if（sqlite3_打开（[dbPath UTF8String]，&database）==SQLITE_确定）{
const char*sql=“从SAP零件号为“%AWM4230%”的组件中选择ID、SAP零件号、SAP描述、MOQ、INC、NLT、折扣代码、AD欧元、AD美元、OEM欧元、OEM美元”；
if（sqlite3\u prepare\u v2（数据库，sql，-1，&selectstmt，NULL）==SQLITE\u确定）{
while（sqlite3\u步骤（selectstmt）=SQLITE\u行）{
NSInteger primaryKey=sqlite3\u column\u int（selectstmt，0）；
数据库*DatabaseObj=[[Database alloc]initWithPrimaryKey:primaryKey]；
DatabaseObj.sapart=[NSString stringWithUTF8String:（char*）sqlite3\u column\u text（selectstmt，1）]；
DatabaseObj.sapDesc=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，2）]；
DatabaseObj.sapMOQ=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，3）]；
DatabaseObj.sapINC=[NSString stringWithUTF8String:（char*）sqlite3\u column\u text（selectstmt，4）]；
DatabaseObj.sapNLT=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，5）]；
DatabaseObj.sapDISCOUNT=[NSString stringWithUTF8String:（char*）sqlite3_column_text（selectstmt，6）]；
//价格
DatabaseObj.oemEURO=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，7）]；
DatabaseObj.oemUSD=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，8）]；
DatabaseObj.adEURO=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，9）]；
DatabaseObj.adUSD=[nsstringwithutf8string:（char*）sqlite3\u column\u text（selectstmt，10）]；
[appDelegate.compArray addObject:DatabaseObj]；
}
}
}
其他的
sqlite3_close（database）；//即使open调用失败，也要关闭数据库连接以释放所有内存。
sqlite3_重置（选择STMT）；
}

已解决-查看注释。我仍然无法100%确定这是为什么/如何解决的。

请发布您用于查询数据库并在iPhone应用程序上迭代行的代码？我会用一些不太复杂的东西来测试它，例如文字字符串。如果这在iMac和iPhone/iOS上都有效，那么这就是c条件。我在iPhone和在返回时强制转换某些数据类型方面也遇到了问题，因此，如果您可以调试结果行计数，这可能有助于缩小其范围。正如我在上文中所解释的，我已经尝试使用相同的结果生成文本字符串（请参阅第一个选择字符串）.我不确定如何/在哪里调试-当我调试SQL字符串时，一切似乎都正常，但我无法调试“已编译的选择字符串”？有什么想法吗？非常奇怪…我尝试了一些事情。如果我在第一次打开数据库时使用选择，它工作正常，但另一个没有让任何人看到区别/问题？

-(void) searchDB:(NSString *)strSearch {

    NSString *wildcardSearch = [NSString stringWithFormat:@"%%%@%%", strSearch];

    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    if(searchSTMT == nil) {
       const char *sql = "SELECT ID, SAP_PART_NR, SAP_DESC, MOQ, INC, NLT, DISCOUNT_CODE, AD_EURO, AD_USD, OEM_EURO, OEM_USD FROM Component WHERE SAP_PART_NR LIKE '%AWM4230%'";
        if(sqlite3_prepare_v2(database, sql, -1, &searchSTMT, NULL) != SQLITE_OK)
            NSAssert1(0, @"Error while creating view statement. '%s'", sqlite3_errmsg(database));
    }

    if(SQLITE_DONE != sqlite3_step(searchSTMT)) {

        while(sqlite3_step(searchSTMT) == SQLITE_ROW) {

            NSInteger primaryKey = sqlite3_column_int(searchSTMT, 0);
            Database *DatabaseObj = [[Database alloc] initWithPrimaryKey:primaryKey];
            DatabaseObj.sapPart = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 1)];
            DatabaseObj.sapDesc = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 2)];
            DatabaseObj.sapMOQ = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 3)];                
            DatabaseObj.sapINC = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 4)];                 
            DatabaseObj.sapNLT = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 5)];
            DatabaseObj.sapDISCOUNT = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 6)]; 

            DatabaseObj.oemEURO = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 7)];
            DatabaseObj.oemUSD = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 8)];    
            DatabaseObj.adEURO = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 9)];         
            DatabaseObj.adUSD = [NSString stringWithUTF8String:(char *)sqlite3_column_text(searchSTMT, 10)];                        

            [appDelegate.compArray addObject:DatabaseObj];
        }
    }
    else 
        NSAssert1(0, @"Error while getting the rows. '%s'", sqlite3_errmsg(database));

    //Reset the detail statement.
    sqlite3_reset(searchSTMT);

}

+ (void) getInitialDataToDisplay:(NSString *)dbPath {<p>
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    sqlite3_stmt *selectstmt = NULL;

    if (sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) {

       const char *sql = "SELECT ID, SAP_PART_NR, SAP_DESC, MOQ, INC, NLT, DISCOUNT_CODE, AD_EURO, AD_USD, OEM_EURO, OEM_USD FROM Component WHERE SAP_PART_NR LIKE '%AWM4230%'";

        if(sqlite3_prepare_v2(database, sql, -1, &selectstmt, NULL) == SQLITE_OK) {

            while(sqlite3_step(selectstmt) == SQLITE_ROW) {

                NSInteger primaryKey = sqlite3_column_int(selectstmt, 0);
                Database *DatabaseObj = [[Database alloc] initWithPrimaryKey:primaryKey];
                DatabaseObj.sapPart = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 1)];
                DatabaseObj.sapDesc = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 2)];
                DatabaseObj.sapMOQ = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 3)];                
                DatabaseObj.sapINC = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 4)];                 
                DatabaseObj.sapNLT = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 5)];
                DatabaseObj.sapDISCOUNT = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 6)]; 
                //PRICES
                DatabaseObj.oemEURO = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 7)]; 
                DatabaseObj.oemUSD = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 8)];    
                DatabaseObj.adEURO = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 9)];         
                DatabaseObj.adUSD = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 10)];                      

                [appDelegate.compArray addObject:DatabaseObj];
            }
        }
    }
    else
        sqlite3_close(database); //Even though the open call failed, close the database connection to release all the memory.

    sqlite3_reset(selectstmt);
}