MySQL incrementing value

Is there a way to make a value increment with every insert if having multiple inserts? (I dont speak of the primary key that autoincrements) Lets say I have a structure like...

MySQL Table Summary Cascade

I'm designing a statistics tracking system for a sales organization that manages 300+ remote sales locations around the world. The system receives daily reports on sales figures (raw dollar...

How can I create a closure table using data from an adjacency list?

I have a database containing a hierarchy of categories stored using the adjacency list model. The hierarchy is 3 levels deep (not including an imaginary root node) and contains approx 1700 nodes....

Category is implementing a method which also be implemented in primary class : `viewWillAppear:`

I'm trying to category UIViewController to override viewWillAppear:. But getting this warning. Category is implementing a method which also be implemented in primary class @implementation...

How to show values in data labels of Excel Pareto Chart when chart is based on percentages

I am developing a Pareto Chart for my client in Excel 2010. They currently have a chart that shows the percentage of each category on the primary Y-axis. Then, the secondary Y-axis is used for...

trouble installing pyobjc module on OSX lion? (10.7.5) xcode (4.6.3)

I am currently trying to install the "pyobjc" module in Python 2.7 on Lion OSX 10.7.5 with Xcode 4.6.3. The module I actually want to install eventually is Quartz. I have tried various methods of...

.addEventListener is not a function?

Someone has helped me with this script in Codepen where it worked fine, until i tried to implement it into my Wordpress website. The two sets of grey dots are buttons. Each button will open it's...

MS Access - Log daily totals of query in new table

I have an ODBC database that I've linked to an Access table. I've been using Access to generate some custom queries/reports. However, this ODBC database changes frequently and I'm trying to...

Cassandra modeling with a read/unread status for a message inbox, CQL

I'm trying to find the best data model for a message box application. That messages appear in order in which first the ‘unread’ appear and then as the user scrolls the ‘read’ messages...

JSON Deserialization - handle property that can be a array

Question Background: I am querying Amazons Product Advertising API and trying to desearlize the JSON response to a C# object. The Issue: I have received a deserialization error when the code...

Dividing count on one table from another and grouping the results

I am trying to calculate the ratio of rows in table A to rows in table B. This would have been easy if I only had to calculate the ratio for the whole sets, but I want to group them by a category...

CodeIgniter: Trying to get property of non-object

I'm trying to show all product in my database for the specific category with anchor on linked list like this <?=anchor('home/display_category/' . $category='Business', 'Business',[ ...

Mapping of parent/child relations in OData

I have an object model with a parent -> children relation: class diagram The relation is a composition, a parent can have multiple children, a child has always one parent and cannot live without...

Realm Migration Duplicated values

i want to do a Migration(Realm 87.2) i did others before, but this one is not easy and i dont know why my previsoly Categoriy.class private int code; private String title; private String...

Multiple many to many's for genre

OK here is the scenario. I have tables like MOVIES, BOOKS, TV_SHOWS. All of these tables can have many genres and any genre can have many multiple files from any table. So the problem I'm faced...

PowerBI: Split column in to separate columns

I have a category multiselect field which i'm importing, which has multiple values separated by a comma: Agriculture, Microfinance, Peace Building My primary instinct is to split each value in...

How to run my class object with ajax jquery in PHP

I am developing a theme and currently working on import data process. Radium one click import working really fine for my but I want to add some minor change. I have two demos for my client, family...

Neither user 10232 nor current process has android.permission.READ_PROFILE

When I launched the app on Samsung S3 neo the app crashes with following Security Exception: java.lang.RuntimeException: An error occured while executing doInBackground() at...

Javascript does not work from a bootstrap template in rails

I have created a new rails app and installed all the necessary gems. Added all the files. Updated the application.js file. Everything works but for some reason all the javascript related things do...

Why apps keep crashing when running on Emulator or Device Android API 23?

I want to develop an app in Android API 23 (Marshmallow) but i don't know why my app keep crashing when I run on device or emulator. I don't get any compile error so far. At first, i think the...

passing custum parameter to server side data of datatable.?

I have kind of application which gonna have big data so i have chooses server side datatable for that purpose. but i want to add edit and delete button on rows that comes with data but i could not...

Modal pop-up is displayed in angular

Here Modal pop-up is not working, where it only displays a blur screen but the content inside the modal pop-up is not displayed. Where I have displayed it at the end of the component.ts file and...

MySQL - Multiple level product database

I am currently building a store based module for one of my customers. The items have many different types of categories that they can be entered into. An example I will use is a radio. It can be a...

How stop crashes when I change to another activity in Android Studio using Kotlin

Everytime I try and switch from LoginActivity to RegisterActivity it crashes, and I can't figure out why This is my MainActivity.kt package com.test.kotlinfirstapp import...

How can you efficiently create a strong ordered sequence in Spanner?

Google Spanner recommends against using things like timestamps or sequential numbers as the initial part of a primary key or index, which makes sense based on the architecture. However, for my...

How to solve a problem with Ant Design. Nothing is displayed, my "app" div is empty

After installing Ant Design and create this component, nothing is displayed. Blank page and the <div id="app"></div> is empty in the browser. I also tried to make the same component with material...

Multiple id at foreach Laravel - PHP problem

I have a search function, and I need to add id of posts ( from table opinions, column id). In my view I already have subject, and I get it from database with $user->subject, but at $user->id, I...

Converting html to angular 8 component

I am new to angular . I am converting HTML template to angular 8 component . When I Put the Complete HTML in Index page and outside <app-root></app-root> Everything works fine. But when i put it...

Google Tag Manager - Tracking Drop Down Question in Form

I am currently trying to track all answers to a drop-down question in a form. My first thought was to do it through form.submit method, but this form won't trigger as one. The form submission...

Calling GROUP_CONCAT in Entity Framework for MySql

What I am trying to do boils down to trying concatenate multiple rows into a single row from a column subquery. In the SQL in MySql this is done with a GROUP_CONCAT function. I have seen code...