I am a newbie.. please.. tell me what is this.
Posted: Wed Jun 27, 2007 12:44 am
Hi.. every one.
in a database table. for every field there are 3 options available
1. primary
2. Index
3. Unique.
kindly tell me
1. what does each means??
2.how they differ from each other.??
3. can each of the above 3 be applied to any no. of fileds??
4. for a field can we apply all the 3??
really i am very confused with these...
any links to articles will be appriciated...
in a database table. for every field there are 3 options available
1. primary
2. Index
3. Unique.
kindly tell me
1. what does each means??
2.how they differ from each other.??
3. can each of the above 3 be applied to any no. of fileds??
4. for a field can we apply all the 3??
really i am very confused with these...
any links to articles will be appriciated...
[url=http://forums.devnetwork.net/viewtopic.php?t=30037]Forum Rules[/url] Section 1.1 wrote:2. Use descriptive subjects when you start a new thread. Vague titles such as "Help!", "Why?" are misleading and keep you from receiving an answer to your question.
[url=http://forums.devnetwork.net/viewtopic.php?t=30037]Forum Rules[/url] Section 1.1 wrote:11. Please use proper, complete spelling when posting in the forums. AOL Speak, leet speak and other abbreviated wording can confuse those that are trying to help you (or those that you are trying to help). Please keep in mind that there are many people from many countries that use our forums to read, post and learn. They do not always speak English as well as some of us, nor do they know these aberrant abbreviations. Therefore, use as few abbreviations as possible, especially when using such simple words.
Some examples of what not to do are ne1, any1 (anyone); u (you); ur (your or you're); 2 (to too); prolly (probably); afaik (as far as I know); etc.