Division on MySQL

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP



Division on MySQL



Please help me. I have division problem on mysql. I have query like this :



SELECT (8/10) as res



This query result is 0.8000 and I want the result is 0.8 not 0.8000.
Does someone have a solution?





80/10 = 8.0000?
– P.Salmon
Aug 10 at 7:51





Possible duplicate of Format number to 2 decimal places
– juzraai
Aug 10 at 7:51





SELECT (80/10) as res this query results in 8.0000 and SELECT (80/100) as res results in 0.8000 and SELECT ROUND((80/100), 1) as res results in 0.8
– codtex
Aug 10 at 7:51


SELECT (80/10) as res


8.0000


SELECT (80/100) as res


0.8000


SELECT ROUND((80/100), 1) as res


0.8





@codtex how with 15/100 ? it will result 0.2. i wanna remove 0 after 8, so the result is 0.8 or with case 15/100, the result is 0.15 not 0.1500
– Al-kadafi
Aug 10 at 8:14




2 Answers
2



EDIT :Trim with add 0 value


SELECT TRIM((80/100))+0





is it wrong answer ? why isnot useful ?
– Yogi Prayoga
Aug 10 at 8:13





how with 15/100 ? it will result 0.2. i wanna remove 0 after 8, so the result is 0.8 or with case 15/100, the result is 0.15 not 0.1500
– Al-kadafi
Aug 10 at 8:18





you question are not clear.. You can use trim with add 0 like this SELECT TRIM((80/100))+0
– Yogi Prayoga
Aug 10 at 8:55





oke thanks, sorry. that's solve for division problem. but i wanna ask, how about subtraction, i get result 0.6000000000001 of ((80/100)*1)-0.2 operation, i get value 80,100,1, 0.2 from query too. what's the problem?
– Al-kadafi
Aug 10 at 9:23





owh..may you try with this query; SELECT TRIM(((80/100)*1)-0.2)+0 ... it will give you result 0.6
– Yogi Prayoga
Aug 10 at 10:34



You are not very clear but I think the following queries does what you want:


SELECT TRIM(TRAILING '0' FROM ( 80/100 )) as res;
# Output is 0.8

SELECT TRIM(TRAILING '0' FROM ( 15/100 )) as res;
# Output is 0.15



It will remove the trailing 0 from the result.



If you do for example:


SELECT TRIM(TRAILING '0' FROM ( 81/11 )) as res;
# Output is 7.3636



So the question is what exactly do you want to do? Do you need rounding at all?





thanks @codtex, i will try it. actually, i have a long query for get value of transaction, even if my query is split, this is only a calculation of ((80/100) * 1) - 0.2. and the result isn't 0.6 but 0.6000000000000001. i think division is the problem, so i ask like that.
– Al-kadafi
Aug 10 at 8:31







By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

-

Popular posts from this blog

Firebase Auth - with Email and Password - Check user already registered

Image
Clash Royale CLAN TAG #URR8PPP Firebase Auth - with Email and Password - Check user already registered I want to check when a user attempts to signup with createUserWithEmailAndPassword() in Firebase user Authentication method, this user is already registered with my app. createUserWithEmailAndPassword() 8 Answers 8 To detect whether a user with that email address already exists, you can detect when the call to createUserWithEmailAndPassword () fails with auth/email-already-in-use . I see that @Srinivasan just posted an answer for this. createUserWithEmailAndPassword () auth/email-already-in-use Alternatively, you can detect that an email address is already used by calling fetchSignInMethodsForEmail() (previous called fetchProvidersForEmail() ). fetchSignInMethodsForEmail() fetchProvidersForEmail() When the user trying to create an user with same email address, the task response will be "Response: The email address is already in use by another account." mFirebas
Read more

Dynamically update html content plain JS

Image
Clash Royale CLAN TAG #URR8PPP Dynamically update html content plain JS So I have a script bound in my index.html, which literally has to fetch an array of jsons from an api, then dynamically update my page when get response. But as a result I'm getting an as the only update of my page. here is my script fetch(url) .then((resp) => resp.json()) .then((resp) => resp.results.forEach(item => fetch(item.url) .then((response)=> response.json()) .then((response) => pokeArr.push(response)) .catch(console.log) ) ).catch(console.log) const filler = () => if(!pokeArr) return 0 pokeArr.map((i,j)=> return `<tr>$i.name</tr>` ) const pokeindex = () => document.getElementById('a').appendChild(document.createElement(filler())) pokeindex() When I'm consoling it, I can see in the console all the responses I get, so I'm at least doing the fetching part right. What's parberakan ? What's pokeArr ? – T.J. Crowder Aug 8 at 12
Read more

How to determine optimal route across keyboard

Image
Clash Royale CLAN TAG #URR8PPP How to determine optimal route across keyboard I'm trying to automate the typing process in a video game. Players are given an on-screen QWERTY keyboard layout that they can navigate with the control stick (up, down, left, right) in order to select a letter to type. I was wondering if there was a module for Python (or some other resource I could explore) that would help my program find a path across the keyboard as it types each letter in a given message. In other words, if the first letter typed was "A" and the next letter was "B", the module would know that the program should move 1 space down on the keyboard and 4 spaces to the right. Currently, I have the program resetting to the "G" key after each letter is typed (allowing me to use fixed-directions as the program parses each character in the desired message). As you can imagine, this is quite inefficient and defeats the purpose of automating the typing in the fir
Read more