Questions tagged as 'mysql'

Tagged questions
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error when creating an Update table with mysql (heidi)

I try to make an update of a table links to each other that will be sent Documents and DocumentsSend2 the 2 tables contain same fields all the fields are varchar the error is This is my query update a set a.codigo_estado=b.codigo_estado,a.d...
asked by 04.01.2019 / 06:29
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Send data to BBDD from a Form with PHP without reloading the Web

<form action="db_principal.php" method="post" enctype="multipart/form-data"> <textarea placeholder="En que estas pensando?" name="detalle" required=""></textarea> <input id="coords" type="text" class="form-control...
asked by 21.12.2018 / 18:31
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Insert client with Volley to an external DB?

I'm trying to do an insert using Volley and PHP but for some reason when I try to register in the PHP code it enters the else instead of the if ... // registerClient.php // <?PHP //hostname, username, password y database require_once 'd...
asked by 21.12.2018 / 15:21
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MySQL does not return data to JAVA

I am trying to make a query to my DB but it does not return anything, no error, or some other way of doing it public class test { public static void main(String[] args) throws SQLException { coneccion con = new con...
asked by 15.12.2018 / 22:50
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Help with mysql query with different conditional if php

I need to perform a mysql query with conditional if from php. The idea is to pass the query variable, by the query where not to be doing a different one for each time it is consulted. These are the php conditions: $WHERE = ""; if ($fecha_in...
asked by 16.12.2018 / 00:09
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Duda Mysql Add Previous Record

I am currently working with a non-relational Mysql database. I need a way, create a stored procedure, that this can add the previous record and subtract by another field. Create an Excel with the formula, to exemplify the case. Edit I...
asked by 14.12.2018 / 19:42
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Databases relationships

this database is new to me, I have searched my query before but I messed with the answers because the questions are not the same as mine, maybe similar but I can not relate the answers to my question, because what I leave my query here. I am...
asked by 14.12.2018 / 19:50
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Can not delete or update a parent row: a foreign key constraint fails

Class Answer public class Respuesta { @Id @GeneratedValue @Column(name = "id") private Long id; private String contenido; private int puntos = 0; private int likes = 0; private int dislikes = 0; @Cascade...
asked by 14.12.2018 / 21:08
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Why do not you show me the content of my website 000webhost?

I have already finished a mini project, it works perfect on my PC "Localhost" but when I want to upload it to 000webhost it goes up all right, but when I want to see a view it does not show it, but no error appears. I think it's the .htaccess or...
asked by 14.12.2018 / 22:38
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does not load my image in Webcontent folder / images

I have a question, the problem is that I created a project in which I keep my image in a folder within Webcontent / images, I believe in my dispatcher-servlet.xml, I'm using spring mvc, I create my controller where I send to call the route and e...
asked by 17.12.2018 / 18:06