Programming :: Mysql - Online Store Inventory Control?
Oct 26, 2010
I am adding inventory control to our online store here at work and I'm not sure of the best approach.Let's say Customer A and Customer B are both looking at the product page for Product X at the same time, and there is only 1 left in stock. What should happen if both click "add to cart" at (more or less) the same time?hould the last Product X get put "on hold" for one of the customers, and then decremented once the sale is complete? Or should the database decrement the product count, and then increment it if the sale doesn't go through successfully?Is it still possible for both to add it to their cart? Are there any mysql features I can use to ensure both cannot purchase the last product?
I have been trying to set up GLPI with OCS inventory but am having issues installing OCS. I have been following the below directions and when i go to [url] the login page gives me an error.
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Now i have not tried to log in yet so its like there is a auto log in. What config file do i have to edit to turn this off?
Something that may be effecting this would be the following step (below high lighted in red)i do not do as i do not see this line when installing. I am installing 1.3.1 not 1.0 like the guide was written for, which i think is what is causing me not to see this step.
This install procedure was meant for Debian Etch but should work for Ubuntu. Just add sudo to the beginning of all the commands. Or you can login as root and run them by typing:
How is it possible to store and backup our files online? I don�t know that how this concept actually works. is there any kind of device needed while storing data at another location
I want to know that how can i store network traffic in MySql Database. What i want to do is identify no of client requests hitting a server throughout the day...I have to store no. of request hitting a server in every 15 mins and insert that into database so that i can obtain a network traffic pattern.
I searched for a tool but cudn't find any that satisfy my requirements..
I work for a not for profit research organisation that works in the clinical sector. Currently I create summary reports for each of our studies that are then made available through our website. These reports are generated from data that is stored in a MYSQL database residing on a RHL Enterprise server. The data analysis however is performed using Microsoft Excel and then I use excel to create the final report pages, which are finally PDF'd.
This approach has served me well however I am currently working to port the data analysis to R and have the analysis performed on the server side. Now I have to consider how to generate reports. Here is my question. Could anyone recommend software that I could use to prepare and review reports generated directly from the data residing in the MYSQL database? I have no experience with this area as my background is in microbiology.
1) I have a qmail/vpopmail/mysql setup (someone else did) and I see that the "vlog" database is eating up disk space. It's only growing and not shrinking or being pruned of old entries. At this rate the disk will fill in the next 60 days. I googled around but found nothing on managing the vpopmail databases. Is "vlog" even part of vpopmail or something the last admin did for inhouse customization? If it IS part of vpopmail can I delete old entries or at least shrink the log?
2) My MySQL 5 server is pretty beefy. The connections max at 500 and usually average about 50. However, when we get extremes fits of email and connections start creeping up on 400, 450 the server crawls SOOOO slow that VPOPMAIL fails to authenticate out of timeout. The server load goes from .16 to 2 and 3 but the instant I restart MySQL it's rite back down to .5 then .3 and .15 again as all the backed up requests from the other mail servers are processed.
Below are my server variables and stats: Initially I dropped the wait_timeout from 8 hours to three minutes which reduced the connections significantly but still I'm having this random overload issue.
I have two students whose windows laptops are riddled with malware and not working properly. They want me to help them install Linux (which we use in school), but they are concerned about their iTunes.
Having avoided iPods as "defective by design", I know nothing about iTunes whatsoever. However I remember reading about DRM locking and such problems that have me concerned that I won't be able to do it.
Where does iTunes store its stuff?
Can I copy its data store to an external drive, and then into a linux home?
Then will it work on wine, or can another manager (rhythmbox etc) access the itunes data?
Alternatively, if I partition the drive and install linux, can rythmbox/wine/something access itunes data on the win partition?
Supposing they are buying music through iTunes, what will happen to that account?
Finally, one of them has an iphone. Does that work with linux?
Ironic that an apple application is blocking migration away from windows.
i have a loop which produces new value everytime it runs. i want to store the results in an array. how can i do dat??
loop is like: a=0 declare v while ((....)) do v[$a]="$r" let a=a+1 done
while doing this it is not treating v as array but as variable and it is overriding the value and old value is lost..i am using bash shell version 3.00.15
i m trying to store h.264 in avi container using ffmpeg....is it possible using ffmpeg.i m using v4l to capture a image and compressed in to h.264, how i can store it in avi container,any programming example,header format for avi container,and what other information required to store in a container.
I have been using wamp on an xp box and now have set up ubuntu with the localhost server seeming to be going okay.
As this is just a desktop graphical test server with no real public hosting, I was hoping to find a control panel like in wamp where one can stop/start php, apache, mysql, phpmyadmin and see logs etc.
I am trying to store the data in my program in a map of priority_queues an I am having a bit of trouble doing it. basically I am storing activities (ie watching tv, eating dinner, playing ping-pong, etc) and I want these event grouped by the day that they happened on. my first thought was to use a multimap where the key is the date, and the value is the activity, however I would like to keep the activities in a specific order. I have tried to find the proper syntax for this but have frustratingly come up empty. Even google provided little assistance.
I am working in DM355 board. CPU is armv5t. I am asked to record the video thats coming from camera using rtsp. I can record the video file in avi format on /opt directory on dm355 target board. Now I have to store this avi file in nas server. My nas server ip is 192.168.1.250. Linux pc,DM355 target board and NAS server on same network. How to write the program to store avi files from DM355 to NAS server.
I am working on an structure program and i have to represent a 2,4 tree in a class in Java using single int array and make the insert and delete functions .
I have a requirment where I have to store some data before the system goes to hibernate. How the kernel intimates to the application when it goes to hibernate. Is there any event or a signal that kernel posts to all applications?
I have to pull certificate from multiple computers which are on network and store it in a single fie or each file belong to a particular computer.I am using certutil -store to import the certificate.
I am writting a program that reads a text file (music.txt) & stores it in a Data Structure. I am a novice learning over the internet so I this is something I have never done. How do I do this?
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Write a program that reads the data from the music.txt file and store it in a data structure. To implement this data structure you must use an array of songs and each song must be represented by a struct with appropriate fields. So far all I can do is open to file to read it (very simple I know) but so far is it correct?
Suppose I want to account number of files beginning with abc , I can use "ls 'abc* | grep abc | wc -l", this will return me a number. I want to store this number in a variable, say var1, so I tried 1. "ls 'abc* | grep abc | wc -l |read var1", but this didn't work as var1 has no value somehow. 2. var1='ls 'abc* | grep abc | wc -l', this just assign the entire string "ls 'abc* | grep abc | wc -l" to var1, which is not I wanted.
I don't want to store the value to a temporary file and then read the value from that file. I think there should be a direct way to get the value, but don't know how. I know in tcsh, one can just use set var1='ls 'abc* | grep abc | wc -l', but it also doesn't work in bash. Can anyone give any clue about this?
I'm working with Radiotap headers right now. I want to get the RSSI data. I came through a problem that I can't figure out right now.The value that I need to get is:
Code: s8 IEEE80211_RADIOTAP_DBM_ANTSIGNAL now, when I printf it:
I was reading about Ruby code blocks, but it's all a bit hazy.My questions:1. Can you store executable code in the value part of a hash (err...associative array)2. If you did, how would you call the code?3. If you executed this stored code, would it be possible when doing soto pass in an object to the code that it could use?
I need to be able to store users logged at chat server. The chat program stores the login information in a text file (no db). I need a modification so the user info is read from the flat file and stores into a table in Joomla db. I don't have access to source for making the Java Chat Server store the data directly to joomla db is not possible.Any pointer will be appreciated.Below if the code that read s the information from Java Chat Server.
Code: function chat_getChattersFromLocalServer() {
I am in need of some syntax help. I'm trying to figure out how to store and retrieve an array out of a hash of hashes. For this example, I'm trying to access the city list for a particular state for a particular country. I understand I could do a join and split on the hash key to combine Country and State, but trying to keep things separated.The code I have gets in all the information for the Countries, and states, and gets the list of cities together, no problem. I store all the city names in an array, then make an anonymous pointer to the array for the hash, like this - $MY_CITIES{$COUNTRY}{$STATE} = [@CITIES]I believe that syntax is correct, or is it? What I'd like to do is I need to cycle through every hash to find if a city exists or not. If it exists in 3 states, then it should print 3 times. Here is the code block to search -
Code: for $COUNTRY (@LIST_OF_COUNTRIES) { for $STATE ( keys %MY_CITIES{$COUNTRY){$STATE} ) {
