Category "database"

MySQL syntax Error on Create Trigger

Here is my trigger, I am getting the MySQL syntax error. I wanted to reduce the balance from sms_index table sms_count column value. CREATE TRIGGER sms_log_up

cant create a database in DBeaver

im just starting using databases and I'm working with PostgreSQL using Dbeaver. When I want to create database,i need to create a new connection ,so I select Po

Best way to store many pandas dataframes in a single file

I have 20,000 ~1000-row dataframes, each of which has a name, in a 170GB pickle file at the moment. I'd like to write these to a file these so I can load them i

how to move from sqllite database to mysql database?

i want to move from SQLite database M, MySQL database. if i understood correctly, so i can do it with changing the engine: engine = create_engine('sqlite:///foo

Do I need a separate WAF if I want to use Azure Deployment Slot on production instance?

I'm looking to leverage Azure deployment slots for a production Web App (with Azure SQL DB). I also use a Fortiweb WAF-as-a-Service for production app. If I use

Do I need a separate WAF if I want to use Azure Deployment Slot on production instance?

I'm looking to leverage Azure deployment slots for a production Web App (with Azure SQL DB). I also use a Fortiweb WAF-as-a-Service for production app. If I use

Case-insensitive exact match with SQLAlchemy

How can I ensure that the = operator is always rendered case-insensitive? Are comparisions with the LOWER or the UPPER functions the best bet for performance? I

Slow MongoDB aggregate with $sort on _id field

I have a records collection with the following indexes: {"_id":1} {"car.make":1,"city":1,"car.mileage":1} And performing the following query: db.records.agg

Temporary tables in hana

it it possible to write script in hana that crate temporary table that is based on existing table (with no need to define columns and columns types hard coded

Difference between non-prime and non-key attributes in Database

I am a little bit confused between non-prime attribute and non-key attribute I have searched a bit about them and found that non-prime attribute means An attri

ModelService does not remove the model in groovy script

I'm trying to remove a model from database using ModelService in my groovy script but it doesn't remove. import de.hybris.platform.core.model.order.OrderModel i

Missing comma before start of a new alter operation. (near "CHARACTER SET")

Mysql - phpmyadmin What's wrong with this query? ALTER TABLE `invoices` CHANGE `status` `status` ENUM('paid','due','canceled','partial','cheque') CHARACTER SE

Leaderboard ranking with Firebase

I have project that I need to display a leaderboard of the top 20, and if the user not in the leaderboard they will appear in the 21st place with their current

How to query data from different types of databases in a microservice based architecture?

We are a using a micro-service based pattern for our project where we have Users and their Orders. Users personal information (name, email, mobile) is stored in

How can Select date(dd/mm/yyyy) in ascending order in sql

I want To Select stockDate in ASC Order My Table Structure is.:-

Postgres Join tables and create new field if join exists

I'm new to Postgres and I have a confusing one. Basically, I want to find if my post is bookmarked by the user or not in a new field bookmarked = true / false H

WHERE IN array binding in DB::raw laravel 5.4

I'm trying to bind an array in a raw WHERE IN query in the Laravel DB example: $arr = [1,2,3]; DB::select(DB::raw("select * from test1 WHERE id IN ? "), [$arr

C# Winform LiveCharts does not know how to plot

I'm trying to draw a graph with some arrays. I got 4 arrays (Time,Temprature,Speed,Water). I want to add Time array on AxisX. The others are going to be on Axis

Variable retrieved from json data doesn't seem right

I retrieve data from mysql server and one of the fields is an int value (1 or 0 ) and it's printed right (1 or zero ) but when I try to apply an if condition on

UninitializedPropertyAccessException in Android Studio using Kotlin

I am a beginner making use of a Roomdatabase. Mostly using it to load in and pass items between tables using simple relationships. package com.example.allin