I have a table which is a list of games played in the sqlite3 database. The field “datetime” is the date and time when the game ends. The field “duration” is the number of seconds the game lasts .
Category: Database
The database is a warehouse that organizes, stores and manages data according to the data structure. It was created more than 60 years ago. With the development of information technology and the market, especially after the 1990s, data management is no longer just It is to store and manage data, and transform it into various data management methods required by users. There are many types of databases, from the simplest tables that store various data to large-scale database systems that can store massive amounts of data. They have been widely used in all aspects.
Monotouch’s mono.data.sqlite: How to get the value of the auto increment field after inserting a line?
Well, this may be very basic stuff, but it took me a long time to figure it out. I think there are more .NET programmers like me, Monotouch and SQLite Newbies don’t know this.
I use Ado.NET (
PowerDesinger batch modification table prefix
Purpose:
Powerdesign batch modify table name steps: 1. ctrl + shift + x to open the running VBS code window 2. Copy the code below and run
Option ExplicitValidationMode = TrueInteractiveM
SQLite in multithreaded Java applications
I wrote a Java application that occasionally logs events to a SQLite database from multiple threads. I noticed that I can trigger SQLite’s “database lock” error relatively easily by generating a sm
Can SQLITE support multiple users?
I am trying to develop a Windows-based application where multiple users access the same database at the same time. Can SQLite support multiple accesses at once? Is SQLite stable in this regard? Wha
PostgreSQL – the best way to make a large number of updates to the index set
The context of this question is PostgreSQL 9.6.5 on AWS RDS.
The question is about a table containing 300 million rows of the following logical data model Best mode design and batch update st
NOSQL – anyone uses Hyperdex in production?
I just noticed that the relatively new open source noSQL database “HyperDex” was not mentioned in the S.O. question. Also-is anyone using it? How does it compare with other noSQL engines? We are
PowerDesigner reverse generation
1. First open PowerDesigner and create a new model On the start interface directly select Creat Model…Of course, if You tick the check box of Do not show this page again, this interface will
Nosql – WHERE clauses on arrays in Azure Documentdb
In such an Azure Documentdb document
{
“id”: “WakefieldFamily”,
“parents”: [
{“familyName”: “Wakefield”, “givenName”: “Robin” },
{“familyName”: “Miller”, “givenName”: “Ben”}
],
“children”:
Rocksdb Chinese Wiki · Write Stalls Tuning
When we continue to insert a large amount of data, we will find that at a certain time, the performance will suddenly drop. If this happens suddenly, we will check whether it appears in the LOG fil