All Questions

1
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Mark one button and uncheck the rest (Toolstrip)

I know it will be silly, but I've been running around a lot and I'm getting desperate. I have a windows form with a toolstrip, which in turn contains a series of buttons. I would like to know how to do so that by pressing one of the button...
asked on 26.11.2018 / 01:34
1
answer

Could not Connect to the Server: There Was Some Error

When trying to connect from PHP to the server I get the following message: No Se Pudo Conectar Con El Servidor: Hubo Algun Error. The php code is as follows: <?php //conectamos Con el servidor $conectar=@mysql_connect('localh...
asked on 27.11.2018 / 07:09
1
answer

how to select the maximum of one auto increment field and save it in another table

I have a record in a table called PARAMETRI that has an autoincrement field named idparametri . What I want to do is save a record in a table called OBRA ; that table has a field called PARAMETRI_ID_PARAMETRI and I want...
asked on 27.11.2018 / 18:27
1
answer

Run a file

My question is whether a file can be executed by its address (file path?). For example, I want to execute the file that is in "C: \ Program Files \ Misc \ list.txt" and that the notepad with the file will open. As if I were opening it manuall...
asked on 28.11.2018 / 05:11
3
answers

Help with SQL statement to show in my SELECT that data does not exist

Greetings guys I need help with the following: I have a table with more data than 6000 data and I need to make a query in phpmyadmin where I will provide a data packet to look for and this will tell me what data I am looking for do not exist...
asked on 19.11.2018 / 14:30
0
answers

error in Async and Await

Hello I'm trying to replicate the code of a course to create a social network with JS Angular and mongo DB the problem is that I'm stuck in the following line of code: } //Conseguir datos de un usuario function getUser(req, res){ var use...
asked on 29.11.2018 / 03:24
1
answer

SQL query to DJset's queryset

I have the following SQL query: SELECT DISTINCT ON (e.id) e.id, e.nombre, e.apellido, e.estado, e.documento, c.nivelado, s.nombre AS semestre, t.nombre AS tipo FROM estudiante e JOIN caracterizacion c ON c.estudia...
asked on 21.11.2018 / 06:04
1
answer

Error editing an entity with a unique Laravel field

I have an entity activities with the following Form Request as indicated in the documentation public function rules() { return [ 'name' => "required|max:200|unique:activities,name,". $this->activity_id ]; } When editin...
asked on 23.11.2018 / 23:51
0
answers

ERROR IN ORACLE

I'm trying to make a trigger in sql, but it gives me three errors that I can not solve, you can tell me if you see any error in this trigger. CREATE OR REPLACE TRIGGER DL_3 BEFORE INSERT ON CONGRESOS FOR EACH ROW BEGIN SELECT AC.id_articulo...
asked on 24.11.2018 / 17:10
1
answer

getDownloadUrl on Android returns me null

this time, I try to recover images that have been uploaded directly to Firebase Storage, a structure for the database has been generated in the following way: DATABASE { "categorias" : { "categoria1" : { "nombre" : "Licores",...
asked on 23.11.2018 / 16:15