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  • How do I update the members of a MySQL SET Type?

    - by MachinationX
    I have a table of values, with one of the columns being of type SET. If it currently has the members ('a', 'b', 'c', 'd'), how do I add 'e' to the possible values? I realize that using a SET type is a little strange, and I'm unclear why one would use it instead of a foreign key to another table with the values of the set, but I didn't design the database in question, and can't change it that much. Thanks for your help!

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  • In web project can we write core services layer without knowledge of UI ?

    - by Silent Warrior
    I am working on web project. We are using flex as UI layer. My question is often we are writing core service layer separately from web/UI layer so we can reuse same services for different UI layer/technology. So practically is it possible to reuse same core layer services without any changes/addition in API with different kind of UI technologies/layers. For e.g. same core service layer with UI technology which supports synchronized request response (e.g. jsp etc.) and non synchronize or event driven UI technology (e.g Ajax, Flex, GWT etc.) or with multiple devices like (computers, mobiles, pdas etc.). Personally I feel its very tough to write core service layer without any knowledge of UI. Looking for thoughts from other people.

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  • Foreign keys - temporarily bypass?

    - by Industrial
    Hi, I have just started to learn about the pros of foreign keys in database design (mySQL / innoDB) and I wonder if there's any way to temporarily bypass the foreign key when doing a specific delete query, to just delete in the parent table, and not from the linked child tables. Thanks

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  • Do you employ any tools for managing technical debt?

    - by Phil.Wheeler
    The site I work with on a day-to-day basis has its share of shortcomings and we often make design decisions to "get us by right now" with the intention of fixing those up later. I've found that making the time to actually go back and fix them, let alone remembering what the full list of to-do items is can be challenging at best. Can you recommend any tools, resources or tricks that help you effectively manage your technical debt?

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  • Is any tool can help create/fix a table into normal form?

    - by WuYi
    Hi,I know the importance of being normal in database design. But many people always lives with broken windows. Is any tool can help create/fix a table to normal form? I mean to force developer create table in normal form, or help to check if the table being normal base on existed data within the table. Thanks……

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  • Postfix virtual_alias stealing emails from virutal_mailbox

    - by drewag
    I am trying to setup a "catchall" address. In my virtual_mailbox table I have emails setup like so: select * from virtual_users; id | domain_id | password | email ----+-----------+---------------------------------------------- 3 | 1 | ***************** | [email protected] 4 | 1 | ***************** | [email protected] That works great on its own. When I try to add a virtual alias for the catchall: select * from virtual_aliases; id | domain_id | source | destination ----+-----------+-------------------+--------------------------- 1 | 1 | @domain.com | [email protected] Once I add that virtual_alias, all email is going to catchall and I can send any to [email protected]. Is there something I need to do to shift around the priority? This is what I am getting in my postfix logs: Oct 20 23:24:26 localhost postfix/qmgr[8002]: C23A711DF9: from=<[email protected]>, size=1712, nrcpt=1 (queue active) Oct 20 23:24:26 localhost postfix/lmtp[8148]: C23A711DF9: to=<[email protected]>, orig_to=<[email protected]>, relay=domain.com[private/dovecot-lmtp], delay=0.42, delays=0.4/0.01/0.01/0.01, dsn=2.0.0, status=sent (250 2.0.0 <[email protected]> 8V9DA4q6ZFLVHwAA0J78UA Saved) Oct 20 23:24:26 localhost postfix/qmgr[8002]: C23A711DF9: removed

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  • Which are the best tools for Graphic Designing?

    - by Jen
    Hello, I want to take up Graphic Designing as my profession. I would be designing Logos, Icons, Stationery, Brochures, Handouts, Book Covers, etc. But I am thoroughly confused as to which tools are the best and which books/resources will help me learn these tools and graphic designing like a professional. I am ready to shell out money to purchase the resources. Please help me out! Thanks, Jen

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  • What happens when a server has too many requests?

    - by eSKay
    I am wondering why websites crash at all. If a server has too many requests, it might queue up the request in its waiting lists and serve it when all the earlier requests have been served. That means that the request for the website will be taken care of, although it may take some more time than expected. Then, how do websites crash due to server overload?

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  • How does too many requests make a server crash?

    - by eSKay
    I am wondering why websites crash at all. If a server has too many requests, it might queue up the request in its waiting lists and serve it when all the earlier requests have been served. That means that the request for the website will be taken care of, although it may take some more time than expected. Then, how do websites crash due to server overload?

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  • Using VLANs that are routed together?

    - by dannymcc
    I have a quick question that's bugging me the more I read about VLANs. So far I understand that they are useful for dividing the network into sub-sections, but if you route them together does that not remove any security benefit? As an example, if I created a VLAN on my home network which was simply one computer, one server and one router.if I wanted to divide the network between computers and servers I could put the computer on VLAN 10 and the server on VLAN 20. Then the computer would no longer be able to communicate with the server - unless I added a static route to the router that connected the two together, basically telling VLAN 10 that VLAN 20 exists and how to communicate with it. The VLANs would then be connected in a similar way to a 'flat' network that has no VLANs. Therefore, surely, all security benefits are lost. Am I missing something?

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  • How does too many requests make a server crash?

    - by eSKay
    I am wondering why websites crash at all. If a server has too many requests, it might queue up the request in its waiting lists and serve it when all the earlier requests have been served. That means that the request for the website will be taken care of, although it may take some more time than expected. Then, how do websites crash due to server overload?

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  • Good place to start learning Adobe Illustrator CS5

    - by Kush
    The question may be off topic for SU, but I couldn't find any better place than this. I've been into designing for a while now, and have learned Photoshop by myself, and currently having fairly good grip in Photoshop CS5. Now due to rising needs, I need to learn Illustrator. I'm aware with the basics of Vector graphics, but haven't worked in designing such. So, suggest me a good place where I can learn Illustrator CS5, from ground up. I headed to Youtube for first start, but I still need an appropriate place where I get to learn it from better tutor. Thanks.

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  • What does this RPC error message mean?

    - by user161834
    I have OS RHNL release 6.2 and use the NFS service (nfs-utils-1.2.3) to connect to NFS server, And found a lot of messages in a file /var/log/messages: Apr 1 11:08:35 XXX rpc.idmapd[3010]: nss_getpwnam: name '2' does not map into domain 'XXXX.com' Apr 1 11:14:26 XXX rpc.idmapd[3010]: nss_getpwnam: name '0' does not map into domain 'XXXX.com' Apr 1 11:18:36 XXX rpc.idmapd[3010]: nss_getpwnam: name '2' does not map into domain 'XXXX.com' Apr 1 11:24:27 XXX rpc.idmapd[3010]: nss_getpwnam: name '0' does not map into domain 'XXXX.com' Apr 1 11:28:37 XXX rpc.idmapd[3010]: nss_getpwnam: name '2' does not map into domain 'XXXX.com' Apr 1 11:34:27 XXX rpc.idmapd[3010]: nss_getpwnam: name '0' does not map into domain 'XXXX.com' Apr 1 11:38:37 XXX rpc.idmapd[3010]: nss_getpwnam: name '2' does not map into domain 'XXXX.com' Apr 1 11:44:28 XXX rpc.idmapd[3010]: nss_getpwnam: name '0' does not map into domain 'XXXX.com' Apr 1 11:48:37 XXX rpc.idmapd[3010]: nss_getpwnam: name '2' does not map into domain 'XXXX.com' What does this message mean ?

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  • Wildcard subdomain to file htaccess

    - by Mikkel Larson
    I've have a problem with a htaccess wildcard redirect My base configuration is set to work with: www.domain.com and domain.com this is governed by 2 .htaccess files: 1: /home/DOMAIN/public_html/.htaccess AddDefaultCharset utf-8 RewriteEngine on RewriteCond %{HTTP_HOST} ^(www.)?festen.dk$ RewriteCond %{REQUEST_URI} !^/public/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ /public/$1 RewriteCond %{HTTP_HOST} ^(www.)?festen.dk$ RewriteRule ^(/)?$ public/index.php [L] 2: /home/DOMAIN/public_html/public/.htaccess AddDefaultCharset utf-8 <IfModule mod_rewrite.c> Options +FollowSymLinks RewriteEngine On </IfModule> <IfModule mod_rewrite.c> RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L] </IfModule> Now i want to redirect: www.[SUBDOMAIN].domain.com/[PATH] and [SUBDOMAIN].domain.com/[PATH] to public/index.php/subdomaincontroller/realsubdomain/[PATH] My solution so far: Added following to 2: /home/DOMAIN/public_html/public/.htaccess <IfModule mod_rewrite.c> RewriteCond %{HTTP_HOST} !www.domain.com$ [NC] RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+)domain.com [NC] RewriteRule (.*) subdomaincontroller/realsubdomain/%2/$1 [L] </IfModule> Sadly this dows not work. Can anyone help me please?

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  • How can I draw "perfect" squiggly lines in Photoshop?

    - by loosebruce
    I want to create a logo that for the two "o" characters uses a series of squiggly lines in the the shape of an "o". Sketch: I did this with Paint but I obviously want consistency with the squiggly lines and close to a circular layout. Why squiggly lines? Well, it's to reinforce the word itself being "loose". Does anyone have any ideas how to tackle making this or tutorials that do similar things to word art?

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