+ 2

Register

I need help .. i want to write code make the email enter only for one time and if the person write the same email again show to him an error message - i use MySQL for data base :"

c#javadatabasehelp
19th Mar 2019, 5:47 PM
haifa
5 Antworten
+ 1
Puedes utilizar la propiedad unique en sql, sobre la columna. Esto te permite ingresar solamente el mismo email 1 ves.
21st Mar 2019, 10:03 PM
Divier Bula
Divier Bula - avatar
0
Hello
5th Nov 2022, 7:39 PM
Ramazon Valiyev
Ramazon Valiyev - avatar
0
oh nice
26th Sep 2023, 12:33 AM
mona jean
- 1
4th Feb 2020, 11:40 AM
Ratnakumari Mandapati
Ratnakumari Mandapati - avatar
- 1
4th Feb 2020, 11:41 AM
Ratnakumari Mandapati
Ratnakumari Mandapati - avatar

Häufig solche Fragen?

Effizienter lernen, kostenlos:

Alle Kurse anzeigen
Heute heiß
How to get better with problem-solving and programming
2 Votes
Ejercicio Pytho
0 Votes
What is that z for
0 Votes
Bug on "Java for Beginners Module 3 Quiz"
1 Votes
What's wrong with this code ? ( Beginner)
2 Votes
Suggestions needed
4 Votes
Write a program to find the strings are in isogram or not
0 Votes
Please rate my code from 1 to 10
2 Votes
How to start
0 Votes
Is there any new bug in the projects reply sections?
0 Votes