How to store multiple record in Mysql variable?
Let’s learn how to store multiple record in Mysql variable. The most accurate or helpful solution is served by Stack Overflow.
There are ten answers to this question.
Best solution
I want to automatically store request_time as the current time when keyword is updated. Here's a sample table: id request_time keyword 1 2011-02-03 8:00:08 free On inserting free, request_time should be set to NOW();. Here's the trigger i have but it doesnt work: delimiter // create trigger ai_update_userinput after update on user_input for each row begin update user_input set request_time = NOW(); end// Help appreciated.
Answer:
That should be possible with a timestamp column, even without a trigger. Take a look at http://dev.mysql...
watkib at Stack Overflow Mark as irrelevant Undo
Other solutions
I have a list of IP in a table that I link with a user in another table. For one IP it works well, but for multiple IP to one user it become harder. I want to avoid duplicates so I think that I need an ENUM type column in my user table .... However ENUM...
Answer:
Why not have a separate table to contain the links? (e.g. a table that has a user_id and ip_id)
Joe Emison at Quora Mark as irrelevant Undo
I'm not sure if that's even what it's called so I think it's best to explain my question with a hypothetical: Let's say I wanted to make a database of shopping malls, the stores in each and what each store sells. So, 1) Shopping Mall A would have Stores...
Answer:
Typically any multi-way association is easiest with an inbetween table to store the associations. Assuming...
Phoenix Souvenir at Yahoo! Answers Mark as irrelevant Undo
I'm currently retro-fitting an InnoDB-based MySQL table with GUIDs. In the short-term, I'll be assigning each existing record a GUID and indexing on it (in the long-term, I'll be migrating to a K-V store). I have two optimizations in mind, and I'm wondering...
Answer:
Regarding option #1: I don't understand how that would help. The B-tree data structure stores the least...
Bill Karwin at Quora Mark as irrelevant Undo
Hi all, I am going through MySQL and underlying data-structure I came across B Trees and B+ trees and my findings pointed that MySQL uses some special form of B+ tree. Now my question is simple. 1. if i am creating a table with a primary key, foreign...
Answer:
Well it is dependent on what kind of storage you use. Each MyISAM table is stored on disk in three files...
Neeraj Khandelwal at Quora Mark as irrelevant Undo
I am pretty sure the founders have more experience in scalable database architectures than I do. Coming from Facebook, they also know that MySQL doesn't scale well [1] (or does it if you do some tricks?) What were the considerations they took into account...
Cameron Purdy at Quora Mark as irrelevant Undo
In any operating system, but especially Linux, where does MySQL store all the databases? If in Linux, which directory is the data stored in? I want to create a database server but want to make sure that I get a separate hard drive for all the MySQL data...
Answer:
Mysql keep its data in /var/lib/mysql folder incase you feel to reinstall the mysql you can allways...
hamzalam at Yahoo! Answers Mark as irrelevant Undo
MySQL's utf8utf8utf8 encoding uses three bytes to store each character, which prevents the use of characters outside of the basic multilingual plane (for example, Emoji characters). MySQL 5.5.3 adds the utf8mb4utf8mb4utf8mb4 encoding, which supports...
Answer:
I've never heard of a database actually scanning 8-bit string input for illegal characters and rejecting...
Joseph Boyle at Quora Mark as irrelevant Undo
It seems I'm doing it wrong: I'm directly logging impression data from over 100 websites directly into MySQL in realtime, but the server just crashes. What are the best practices for doing this? Should I serialize to a file on disk and periodically move...
Answer:
* Determine the best storage engine you need. MyISAM, ARCHIVE and INNODB are all viable options depending...
Ronald Bradford at Quora Mark as irrelevant Undo
What movie did I see that featured a small record store in an African American community within a big city's downtown area? What I vaguely remember: The film was set in the late 60's or early 70's. The store was a kind of meeting place. A character in...
davebush at Ask.Metafilter.Com Mark as irrelevant Undo
Related Q & A:
- How do I scope my final count variable properly?Best solution by siue.edu
- How to convert Oracle script to MySQL script?Best solution by Stack Overflow
- How to store multiple Images in database?Best solution by Stack Overflow
- How to store an image in database using MySQL?Best solution by stackoverflow.com
- how to insert multiple rows from MySQL with checkbox?Best solution by Stack Overflow
Just Added Q & A:
- How many active mobile subscribers are there in China?Best solution by Quora
- How to find the right vacation?Best solution by bookit.com
- How To Make Your Own Primer?Best solution by thekrazycouponlady.com
- How do you get the domain & range?Best solution by ChaCha
- How do you open pop up blockers?Best solution by Yahoo! Answers
For every problem there is a solution! Proved by Solucija.
-
Got an issue and looking for advice?
-
Ask Solucija to search every corner of the Web for help.
-
Get workable solutions and helpful tips in a moment.
Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.