Okay, so today I messed around with something called “627 number”. Gotta admit, I hadn’t heard of it before, but it sounded kinda cool, so I jumped in.
First, I tried to figure out what the heck a “627 number” even was. I did some digging, looked around a bit, you know, the usual. Turns out, it’s related to swapping numbers in some database thingy. Sounded a bit dry, but hey, I was already committed.
The Setup
I needed some kind of a table to work with. I figured a simple table with some employee IDs and names would do the trick. So, I created one. Called it, imaginatively, ‘Employees’. It had just two columns: ‘Id’ and ‘Name’.
- Id: Just a simple number, like 1, 2, 3, and so on.
- Name: The employee’s name. I used some random names like Alice, Bob, Carol, and Dave. Kept it simple.
The Swapping Game
The whole point, as far as I could tell, was to swap the IDs of consecutive employees. So, like, employee 1 would get employee 2’s ID, employee 2 would get employee 1’s ID, and so on. Made my head spin a bit at first.
I wrote some kind of query. To be honest, it was a bit of a struggle. I tried different approaches. Messed up a few times. Okay, maybe more than a few. Finally, something that worked. I used,some CASE statement stuff. Pretty basic code, I used mod operation, to check even and odd number.
The Result
After running the query, I checked the table. And… it worked! The IDs were all swapped around, just like they were supposed to be. Alice and Bob had switched IDs, and so had Carol and Dave. Felt pretty good, I’m not gonna lie.
It was a bit of a bumpy ride, but I got there in the end. Learned a thing or two along the way, which is always a bonus. Might not be the most exciting thing in the world, but it was a fun little challenge. And hey, who knows, maybe this “627 number” thing will come in handy someday.
