Notes
![]() ![]() Notes - notes.io |
SELECT * FROM student
SELECT COUNT(*) FROM student
SELECT Studentnr, Naam, Geslacht FROM student
SELECT Naam, Klas FROM student where Geslacht = 'v'
SELECT * FROM student WHERE Plaats = 'Eindhoven' OR Plaats = 'Son'
SELECT * FROM student WHERE SLB IS NULL
SELECT * FROM student WHERE SLB IS NOT NULL
SELECT * FROM student WHERE IQ >= 100 AND IQ <= 120
SELECT * FROM student WHERE naam LIKE "m%"
SELECT Plaats FROM student // werkt (SELECT DISTINCT plaats FROM student)
SELECT * FROM student WHERE Geboortedatum > '1991-01-01' AND Geboortedatum < '1991-12-31' ('1991')
SELECT * FROM student ORDER BY Plaats
SELECT * FROM student WHERE Geslacht = 'V' ORDER BY Plaats
SELECT Plaats, COUNT(*) AS Aantal FROM student WHERE Geslacht = 'V' GROUP BY Plaats
SELECT Plaats, COUNT(*) AS Aantal FROM student WHERE Geslacht = 'V' // Telt niet per plaats (Slechte code)
SELECT Plaats, COUNT(*) AS Aantal FROM student WHERE Geslacht = 'V' GROUP BY Plaats HAVING COUNT(*) > 1 // OF: HAVING AANTAL > 1
![]() |
Notes is a web-based application for online taking notes. You can take your notes and share with others people. If you like taking long notes, notes.io is designed for you. To date, over 8,000,000,000+ notes created and continuing...
With notes.io;
- * You can take a note from anywhere and any device with internet connection.
- * You can share the notes in social platforms (YouTube, Facebook, Twitter, instagram etc.).
- * You can quickly share your contents without website, blog and e-mail.
- * You don't need to create any Account to share a note. As you wish you can use quick, easy and best shortened notes with sms, websites, e-mail, or messaging services (WhatsApp, iMessage, Telegram, Signal).
- * Notes.io has fabulous infrastructure design for a short link and allows you to share the note as an easy and understandable link.
Fast: Notes.io is built for speed and performance. You can take a notes quickly and browse your archive.
Easy: Notes.io doesn’t require installation. Just write and share note!
Short: Notes.io’s url just 8 character. You’ll get shorten link of your note when you want to share. (Ex: notes.io/q )
Free: Notes.io works for 14 years and has been free since the day it was started.
You immediately create your first note and start sharing with the ones you wish. If you want to contact us, you can use the following communication channels;
Email: [email protected]
Twitter: http://twitter.com/notesio
Instagram: http://instagram.com/notes.io
Facebook: http://facebook.com/notesio
Regards;
Notes.io Team