creating a foreign key using the SQLite and Netbeans database browser

I have created my tables using SQLite database browser,
but I do not know how to create external keys and about foreign key clauses and connect them through netbeans.

Creating unique articles for your blog FULL of keywords to start your ranking in google for $ 10

Creating unique articles for your blog FULL of keywords to start your ranking in google

In order to get a high position in google, I will create unique articles for your website and I will make sure you are full of keywords with a high CPC and keywords to increase your rank in google 500 words and more with unique images terms of Long tail / compatible with SEO
thank you

.

client: Is the viable Bitcoin testnet3 solution for creating, signing and issuing a normal transaction using Golang?

I am currently trying to create, sign and transmit bitcoin transactions using btcsuite. To begin with, I've already had the testnet3 address and its associated private key for the test. However, hunting through the publication and articles as below:

  1. here
  2. here
  3. here

The solution proposed above is not complete, for the first, it only covers up to the signature (I knew the author stated that it can not be transmitted unless I provide the utxo that I did if I'm right), but when I tried to transmit it, the message failed.

"Transaction validation error: Transaction be9b294695bfb201a5cff32af074a4bf72b073e3c9dad1969111165bf118a622 orphan, missing reference f0c0d6b3eecf911ede996a74ceadc9366068791450ccpcpcpcpcpcpcpcpcpcccpcccccpcccccpccccccpccccpccccccpccccpcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccpccp9c9p9b9e99c9c9c99c99c9cccv

I have no idea what is going on and I suspect that your script is incompatible.

So, the bottom line is that I just want a functional example in bitcoin testnet3 that shows
"from 1 address transfer bitcoin to another address" by showing the process of creating a raw transaction, signing it with a private key, converting it into a raw transaction in hexadecimal format and transmitting it using something like https: // live. blockcypher.com/ btc / pushtx / (BTC testnet)

Currently my code is as follows:

main package
to import
fmt
"encoding / hexadecimal"
"bytes"
"github.com/btcsuite/btcutil"
btcchain "github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/txscript"
"github.com/btcsuite/btcd/wire"
)
func txToHex (tx * wire.MsgTx) string {
buf: = bytes.NewBuffer (make ([]byte, 0, tx.SerializeSize ()))
tx.Serialize (buf)
return hex.EncodeToString (buf.Bytes ())
}

func stkbtc () {
pvkey: = "cNjXNxcfawzyfGUxaG94rKqayAL2n7QWioKhCkHbQsBRT7SbDyGu"
txHash: = "e028b5bf030a24986a03b03b89dec037e8462ae32bc93679cb49d7c779685987"
destination: = "n2kRiAkW1xr5DVy7QKVGaYiZbwpS7j23jJ"
amount of var int64 = 100000000
txFee: = int64 (500000)

// try to send btc
decodedwif, err: = btcutil.DecodeWIF (pvkey)
yes err! = nil {
fmt.Printf ("decodedwif error:% v  n", err)
}
fmt.Printf ("decodedwif:% v  n", decodedwif)

addresspubkey, _: = btcutil.NewAddressPubKey (decodedwif.PrivKey.PubKey (). SerializeUncompressed (), & btcchain.TestNet3Params)
sourceTx: = wire.NewMsgTx (wire.TxVersion)
sourceUtxoHash, _: = chainhash.NewHashFromStr (txHash)

sourceUtxo: = wire.NewOutPoint (sourceUtxoHash, 0)

sourceTxIn: = wire.NewTxIn (sourceUtxo, nil, nil)
destinationAddress, _: = btcutil.DecodeAddress (destination, & btcchain.TestNet3Params)

sourceAddress, err: = btcutil.DecodeAddress (addresspubkey.EncodeAddress (), & btcchain.TestNet3Params)
yes err! = nil {
fmt.Printf ("sourceAddress err:% v  n", err)
}

destinationPkScript, _: = txscript.PayToAddrScript (destinationAddress)

sourcePkScript, _: = txscript.PayToAddrScript (sourceAddress)
sourceTxOut: = wire.NewTxOut (quantity, sourcePkScript)

sourceTx.AddTxIn (sourceTxIn)
sourceTx.AddTxOut (sourceTxOut)
sourceTxHash: = sourceTx.TxHash ()

redeemTx: = wire.NewMsgTx (wire.TxVersion)
prevOut: = wire.NewOutPoint (& sourceTxHash, 0)
redeemTxIn: = wire.NewTxIn (prevOut, nil, nil)
redeemTx.AddTxIn (redeemTxIn)
redeemTxOut: = wire.NewTxOut ((amount - txFee), destinationPkScript)
redeemTx.AddTxOut (redeemTxOut)

sigScript, err: = txscript.SignatureScript (redeemTx, 0, sourceTx.TxOut[0].PkScript, txscript.SigHashAll, decodedwif.PrivKey, false)
yes err! = nil {
fmt.Printf ("sigScript err:% v  n", err)
}
redeemTx.TxIn[0].SignatureScript = sigScript
fmt.Printf ("sigScript:% v  n", hex.EncodeToString (sigScript))


// validate signature
flags: = txscript.StandardVerifyFlags
vm, err: = txscript.NewEngine (sourceTx.TxOut[0].PkScript, redeemTx, 0, flags, nil, nil, amount)
yes err! = nil {
fmt.Printf ("err! = nil:% v  n", err)
}
if err: = vm.Execute (); err! = nil {
fmt.Printf ("vm.Execute> err! = nil:% v  n", err)
}

fmt.Printf ("redeemTx:% v  n", txToHex (redeemTx))
}

func main () {
stkbtc ()
}

the txhash was from a previous transaction where I got the bitcoin from faucet testnet and nothing else …

Please advise what is wrong with the previous code, really appreciate if someone can point it out.

Creating a custom display template with a web page of search results

The following article from official sources should give you a start.

https://docs.microsoft.com/en-us/sharepoint/dev/general-development/sharepoint-design-manager-display-templates

There may be a bit of participation depending on what you are trying to achieve. Most of the time, most customizations can start from a copy of an existing template. This can be achieved by opening the Gallery from the main page-> Display Templates and copying an existing template. A template will usually consist of a * .html and a * .js, which are associated.

If you want to start from a blank screen template, I can recommend the following startup template for Elio Struyf.

Starter JavaScript display templates for your projects

Amazon Web Services: Creating an OLAP data store from an OLTP RDS AWS

I have an OLTP AWS RDS (in postgresql and very normalized) that feeds an application. I am trying to create a separate data store (case of OLAP usage) also in AWS RDS (postgresql) using a star schema. I am not considering the redshift because it is more expensive and the amount of data does not justify it. As an AWS rookie, my question is: is there any tool inside the AWS stack that allows me to create a RDS data storage type based on an OLTP RDS? Any suggestions regarding data copy / data synchronization between two RDS, etc. It's a great help.

java – org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with the name & # 39; bookDaoImpl & # 39;

all the world!

Java + Eclipse + Maven + SpringMVC + Hibernate + Tomcat

I did the project by the manual https://www.boraji.com/index.php/spring-mvc-4-hibernate-5-restful-crud-crud-operations-example exactly the same and I can not work on my Eclipse ( (( Why:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with the name & # 39; bookDaoImpl & # 39 ;: unsatisfied dependency expressed through the field & # 39; sessionFactory & # 39 ;; The nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name & # 39; getSessionFactory & # 39; defined in com.example.spring.config.AppConfig: invocation of the startup method fails;

Any help, what should I fix to make my project work? Now the CRUD methods do not work, but the Tomcat server is running …

My project is at https://github.com/OlegSandro/library-service or you can see my code below:

pom.xml:


  4.0.0
  com.example.spring
  library service
  0.0.1-SNAPSHOT
  war

  
    UTF-8
    false
    5.2.8.Final
  

  
    
    
        javax.servlet
        javax.servlet-api
        3.1.0
        provided
    
    
    
        org.springframework
        spring-webmvc
        4.3.10.RELEASE
    
    
    
        org.springframework
        spring-orm
        4.3.10.RELEASE
    
    
    
        org.hibernar
        hibernation core
        $ {hibernate.version}
    
    
    
        org.hibernar
        hibernate-c3p0
        $ {hibernate.version}
    
    
    
        change of com
        c3p0
        0.9.5.2
    
    
    
        mysql
        mysql-connector-java
        6.0.5
    
    
    
        com.fasterxml.jackson.core
        jackson-databind
        2.8.7
    

  

  
    src / main / java
    
        
            complement-compiler-complement
            3.5.1
            
                1.8
                1.8
            
        

        
        
            org.apache.tomcat.maven
            tomcat7-maven-plugin
            2.2
            
                /
            
        
    
  

model.Book.java

                com.example.spring.model package;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@ Entity (name = "Book")
public class book

@I.D
@GeneratedValue (strategy = GenerationType.IDENTITY)
Long private identification;
title of the private chain;
private string author;

Public book () {
}

public Long getId () {
Return ID
}

idle public idle (long ID) {
this.id = id;
}

Public String getTitle () {
return title;
}

public void setTitle (title of the chain) {
this.title = title;
}

Public string getAuthor () {
return author
}

public void setAuthor (String author) {
this.author = author;
}
}

controller.BookController.java

com.example.spring.service package;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.example.spring.dao.BookDao;
import com.example.spring.model.Book;

@Service
@Transactional (readOnly = true)
Public class BookServiceImpl implements BookService {

@Autowired
BookDao private book;

@Transactional
Long public savings (book book) {
returns bookDao.save (book);
}

public book get (long ID) {
returns bookDao.get (id);
}

@Transactional
empty public update (long identification, book of book) {
bookDao.update (id, book);

}

@Transactional
public erasure (long id) {
bookDao.delete (id);
}

Public list list () {
returns bookDao.list ();
}

}

service.BookServiceImpl.java

com.example.spring.service package;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.example.spring.dao.BookDao;
import com.example.spring.model.Book;

@Service
@Transactional (readOnly = true)
Public class BookServiceImpl implements BookService {

@Autowired
BookDao private book;

@Transactional
Long public savings (book book) {
returns bookDao.save (book);
}

public book get (long ID) {
returns bookDao.get (id);
}

@Transactional
empty public update (long identification, book of book) {
bookDao.update (id, book);

}

@Transactional
public erasure (long id) {
bookDao.delete (id);
}

Public list list () {
returns bookDao.list ();
}

}

dao.BookDaoImpl.java

com.example.spring.dao package;

import java.util.List;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;

import org.hibernate.query.Query;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

import com.example.spring.model.Book;

@Repository
The public class BookDaoImpl implements BookDao {

@Autowired
Private SessionFactory SessionFactory;

Long public savings (book book) {
sessionFactory.getCurrentSession (). save (book);
returns book.getId ();
}

public book get (long ID) {
return sessionFactory.getCurrentSession (). get (Book.class, id);
}

empty public update (long identification, book book1) {
Session session = sessionFactory.getCurrentSession ();
Book book2 = session.byId (Book.class) .load (id);
book2.setTitle (book1.getTitle ());
book2.setAuthor (book1.getAuthor ());
session.flush ();
}

public erasure (long id) {
Session session = sessionFactory.getCurrentSession ();
Book book = session.byId (Book.class) .load (id);
session.delete (book);
}

Public list list () {
Session session = sessionFactory.getCurrentSession ();
CriteriaBuilder cb = session.getCriteriaBuilder ();
CriteriaQuery cq = cb.createQuery (Book.class);
Root root = cq.from (Book.class);
cq.select (root);
Query query = session.createQuery (cq);
return query.getResultList ();
}

}

config.WebConfig.java

com.example.spring.config package;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableWebMvc
@ComponentScan (basePackages = {"com.example.spring.controller"})
public class WebConfig extends WebMvcConfigurerAdapter {

}

config.AppConfig.java

com.example.spring.config package;

import java.util.Properties;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScans;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import static org.hibernate.cfg.Environment. *;

@Configuration
@PropertySource ("classpath: db.properties")
@EnableTransactionManagement
@ComponentScans (value = {@ComponentScan ("com.example.spring.dao"),
@ComponentScan ("com.example.spring.service")})
Public class AppConfig {

@Autowired
Private environment;

@Bean
public LocalSessionFactoryBean getSessionFactory () {
LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean ();

Properties props = new properties ();
// Setting the JDBC properties
props.put (DRIVER, env.getProperty ("mysql.driver"));
props.put (URL, env.getProperty ("mysql.url"));
props.put (USER, env.getProperty ("mysql.user"));
props.put (PASS, env.getProperty ("mysql.password"));

// Setting hibernation properties
props.put (SHOW_SQL, env.getProperty ("hibernate.show_sql"));
props.put (HBM2DDL_AUTO, env.getProperty ("hibernate.hbm2ddl.auto"));

// Setting the properties of C3P0
props.put (C3P0_MIN_SIZE, env.getProperty ("hibernate.c3p0.min_size"));
props.put (C3P0_MAX_SIZE, env.getProperty ("hibernate.c3p0.max_size"));
props.put (C3P0_ACQUIRE_INCREMENT, env.getProperty ("hibernate.c3p0.acquire_increment"));
props.put (C3P0_TIMEOUT, env.getProperty ("hibernate.c3p0.timeout"));
props.put (C3P0_MAX_STATEMENTS, env.getProperty ("hibernate.c3p0.max_statements"));

factoryBean.setHibernateProperties (props);
factoryBean.setPackagesToScan ("com.example.spring.model");

returns factoryBean;
}

@Bean
public HibernateTransactionManager getTransactionManager () {
HibernateTransactionManager transactionManager = new HibernateTransactionManager ();
transactionManager.setSessionFactory (getSessionFactory (). getObject ());
return transactionManager;
}
}

config.MyWebAppInitializer.java

com.example.spring.config package;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class MyWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

@Cancel
protected class[]    getRootConfigClasses () {
return new class[] {AppConfig.class};
}

@Cancel
protected class[]    getServletConfigClasses () {
return new class[] {WebConfig.class};
}

@Cancel
Protected rope[] getServletMappings () {
return new chain[] {"/"};
}

}

resources.db.properties

# MySQL Properties
mysql.driver = com.mysql.cj.jdbc.Driver
mysql.url = jdbc: mysql: // localhost: 3306 / library
mysql.user = root
mysql.password = ****

# Hibernation properties
hibernate.show_sql = true
hibernate.hbm2ddl.auto = update

# Properties C3P0
hibernate.c3p0.min_size = 5
hibernate.c3p0.max_size = 20
hibernate.c3p0.acquire_increment = 1
hibernate.c3p0.timeout = 1800
hibernate.c3p0.max_statements = 150

Tips, suggestions and suggestions: Creating a website | Proxies123.com

Greetings to my fellow webmasters, here are some guidelines on the problems of being a webmaster, creating, owning and managing a successful website.
Although brief, this article is mainly aimed at newcomers who are interested in participating in the game, it will contain suggestions, suggestions and guidelines that cover practically everything you need to know as a newbie in the websites and the process involved in the creation one's. Of course, it can also be useful for people who already own a website when it comes to improving it.
However, if I had the idea of ​​creating a website, I would suggest that you read this article carefully and then think again.

Based on my experience, I wrote this to serve as a place to start new webmasters, it's never too late to be a webmaster!

Without further ado, let's begin, first of all, do not think any more, think about this:

Budget!
Everything depends on the previous word, get a paper and a pen by your side, calculate everything, including the costs of Domain, Accommodation, Theme, Design, SEO and Coders, write everything you think is worth spending money and believe , those things are!

View!
Think big, think of competition, think of money, think of success.

Domain:
It needs creativity, an easy domain to remember with, of course, an adequate extension behind it.

Motivation!
Is it money? Or maybe for a good cause … huh?
It is important not to lose interest in the site, you must concentrate all the time, make it interesting for others and for yourself.

Goals!
What do you expect from your website in 6 months from now?

Planning!
What will it be about?
Do not just do it, do not create another forum, which is by far the most cliché you can do.
Forum means community, community means members, members means commitment, commitment means time, time means work, work means equipment, you can not do it yourself!
The forums require a lot of work and effort, which means much more than you would do with a blog or a normal website.
However, if a forum has been proposed, look for a team of experienced members who must help there as staff members.

Niche!
Healthy life, Fitness, IT, get a niche, not the most difficult, but neither the most unpopular.

Competition!
Let's be honest, okay?
There are probably many websites that do the same thing that you plan to do, and they have already existed for a longer time.

You need to study your competition, what makes them so good? Its longevity, content or community?
Either way, you're going to have to come up with some of those …

Waste of time!
Managing a website is a very tedious process that requires you to get thoughts right before they come to life, will you have time to manage it yourself or will you need help?

Partners!
A month has gone by, your website is running, getting decent traffic, but just as you are on the right track, something came up, you should stop focusing on it and do more important things.
Think about this very carefully, you can partner with someone in a Joint Venture project by investing a certain amount of money and sharing the profits, or you can get help from your friends for a temporary period of time.

Uniqueness!
You already know, there are about 250 websites created at this moment in which I write and read this article.
You must think, what will make your site different from other bad quality websites that are made every minute.
Will it be content or design? Are members maybe?
I do not know, you know it.

Profitable!
As you know, Illegal does not translate well into money, it translates well in time in jail, however, therefore, it has to be legal enough to allow Google ads to appear, why not take advantage of other options such as advertisements and others too?

Okay, folks, have you responded to the fields with an exact plan on how you plan to do it?
The previous paragraphs are what will make you special, it is better that you make good use of them.
As soon as you have them resolved, there will still be a lot of time and financial investment to spend, but you will know the rest when you get there.

But, we can also help you with your website. Do you need suggestions or suggestions from other users?
Feel free to post your site in the Comments section of the site, we speak our honest opinion about it.
If you need a partner, be sure to post a topic in the Community Cooperative section that provides enough information so that interested people can work with you.

Good luck.
Oh and, did you enjoy this article? If so, you ungrateful bastard, you just know that I've spent a couple of hours writing this, and you'd better press the Like button below this post!

digiKam: store the changes in the database instead of creating a physical file

I'm trying DigiKam and maybe I'm missing something obvious. When I edit a photo, for example, to correct the exposure, digiKam always asks me to save my changes in a file and then create one next to the original (and I do not mean a sidecar / xmp file).

Lightroom Migration I am used to a system where all my changes are stored in the database. If and when I want to have a physical file, I export the photo and Lightroom then I apply all my changes to that new file.

Is there a similar configuration that makes digiKam store all the changes in its database and does not force me to create new jpeg / png?

discreet – check my thinking on some questions about the function and the possibility of creating sets

1. Is the set of integral multiples of pi countable?
My thought is that because pi is an irrational number, the irrational number is uncountable, so the set of integral multiples of pi is uncountable.

2. Is this function injective (one to one)? Although not all elements of the domain are connected to a shared domain.
https://ibb.co/LN68sdJ