Question

出于某种原因，我的应用程序在“NSAssert1（0，@”错误，循环搜索视图时失败。'％s'“，sqlite3_errmsg（数据库））;” SQL语句没问题，因为我在打开数据库时使用了相同的语句。我没有得到任何有用的错误： - （

我对此很陌生，但并不是一个完全陌生的人我做错了什么？

请注意我已经取出“strSearch”以确保这不是错误。

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

    NSString *qry;

    qry = [NSString stringWithFormat:@"SELECT ID, ON_SAP, SAP_PART, SAP_DESC, MOQ FROM HONEYWELL WHERE SAP_PART LIKE '%ZX%' ORDER BY SAP_PART", strSearch];
    NSLog(@"query : %@", qry);

    if(searchStmt == nil) {
        if(sqlite3_prepare_v2(database, [qry UTF8String] , -1, &searchStmt, NULL) != SQLITE_OK)
            NSAssert1(0, @"Error while creating search view statement. '%s'", sqlite3_errmsg(database));
    }

    // Loop through the results

    if(sqlite3_step(searchStmt) == SQLITE_ROW) {
        // Read the data from the result row
        NSLog(@"New row selected");
    }
    else {
        NSAssert1(0, @"Error while looping search view. '%s'", sqlite3_errmsg(database));
    }

    // Release the compiled statement from memory
    sqlite3_finalize(searchStmt);

    // Set isDetailViewHydrated as YES, so we do not get it again from the database.
    isDetailViewHydrated = YES;
}

该方法属于自己的类（名为Coffee），从MasterViewController调用

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
    NSLog(@"Text changed %@",searchText); 
    Coffee *coffeObj = [[Coffee alloc] init];
    [coffeObj searchComponents:@"%ZX%"];
}

想法是在搜索字段中搜索时更改select语句。有人知道这样做的好例子吗？

Answer 1

问题解决了，我错过了重置

sqlite3_reset(searchStmt);

SQLite iPhone SQL选择崩溃应用程序

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