I've followed the JDBC tutorial at: http://docs.oracle.com/javase/tutorial/jdbc/basics/gettingstarted.html, and managed to build and create my own JDBC database
I deployed a web app on Azure App Services. When web app tries to connect to the Azure SQL Database connection failed. I downloaded the event log from Kudu, I f
I am implementing a small CRM system. and the concept of data mining to predict and find opportunities and trends are essential for such systems. One data minin
The problem Im facing while trying to connect to database for mysql. I have also given the database settings that i have used. Traceback (most recent call las
The in-built Auto-Increment in MySQL doesn't meet my requirement so I'm thinking about making a new one. Here is my requirement: Create an increment serial num
I'm wanting to use the rust implementation of LMDB but I can't seem to find whether it would always maintain a copy of whats in memory also in the disk and vice
I was trying to solve problem in Hackerrank SQL Practice section and stuck in Problem 'Weather Observation Problem 20'. To find Median, I though of the followin
I have MySQL installed on an Ubuntu machine. When I run use TWEETDATA command it shows me following error ERROR 1049 (42000): Unknown database 'tweetdata' Bu
I created the django model "User" with "null=True" as shown below: # "myapp/models.py" from django.db import models class User(models.Model):
I have a set of HTML files and a SQLite database, which I would like to access from the browser, using the file:// scheme. Is it possible to access the database
Here is my schema using sqlite, I am not sure if this is a good way to create tree structure in sql as I have to traverse many time to obtain the entire tree, a
I want to query my mongodb to perform a non-match between 2 collections. Here is my structure : CollectionA : _id, name, firstname, website_account_key, emai
In documentation there's deleteMany() method Character.deleteMany({ name: /Stark/, age: { $gte: 18 } }, function (err) {}); I want to remove multiple documents
Can the UPDATE query be used without a WHERE clause? And if so in what conditions?
I cannot figure out a solution for exporting data from the Teradata database in a parquet format. I am using tdload and tbuild method which required tpt script
In some cases, running an UPDATE statement in production can save the day. However a borked update can be worse than the initial problem. Short of using a test
How would I find duplicate fields in a mongo collection. I'd like to check if any of the "name" fields are duplicates. { "name" : "ksqn291", "__v" : 0
I have my ORACLE table with structure as desc extraction_log1 Name Null
I have a table with a column like this that is currently live: name NVARCHAR(128) NOT NULL DEFAULT '' I am altering the column like this to make it nullable:
I need to make a survey for my website. I have this: Route: Route::resource('survey','surveyController'); Controller: public function index() { $show=surve