[PHP] ADV SQL Help Needed.
Hello everyone, I need help with the following query. I have a table with a column named 'RISK_LEVEL'. RISK_LEVEL can hold three values: Low, Moderate, and High. I need a query that counts the number of occurences of each option. Now, I know I can do 'select count(risk_level) as levelCount where risk_level=low' for each level (low, moderate, and high). But, I was wondering if there's anyway to merge the queries into one. I'm looking for something like select count(risk_level='low') as lowCount, count(risk_level='moderate')as modCount, count(risk_level='high') as highCount Which will return, lowCount = 1 , modCount=3, and highCount=1, for table with id | risk_level 1 | low 2 | moderate 3 | moderate 4 | high 5 | moderate How do you do it? Can tha be done? When I run the code above, I get the same number for each record. i.e. lowCount, modCount, and highCount all come out to 5--which is the number of records in the table. Is this possible, or should I just run multiple queries? Please help. =P e p i e D e s i g n s www.pepiedesigns.com Providing Solutions That Increase Productivity Web Developement. Database. Hosting. Multimedia. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] ADV SQL Help Needed.
off the top of my head SELECT risk_level, COUNT(risk_level) AS rl_count GROUP BY risk_level should do it, though I'd have to experiment with what's inside the COUNT(). Tim Ward http://www.chessish.com mailto:[EMAIL PROTECTED] - Original Message - From: [-^-!-%- [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 21, 2003 12:06 PM Subject: [PHP] ADV SQL Help Needed. Hello everyone, I need help with the following query. I have a table with a column named 'RISK_LEVEL'. RISK_LEVEL can hold three values: Low, Moderate, and High. I need a query that counts the number of occurences of each option. Now, I know I can do 'select count(risk_level) as levelCount where risk_level=low' for each level (low, moderate, and high). But, I was wondering if there's anyway to merge the queries into one. I'm looking for something like select count(risk_level='low') as lowCount, count(risk_level='moderate')as modCount, count(risk_level='high') as highCount Which will return, lowCount = 1 , modCount=3, and highCount=1, for table with id | risk_level 1 | low 2 | moderate 3 | moderate 4 | high 5 | moderate How do you do it? Can tha be done? When I run the code above, I get the same number for each record. i.e. lowCount, modCount, and highCount all come out to 5--which is the number of records in the table. Is this possible, or should I just run multiple queries? Please help. =P e p i e D e s i g n s www.pepiedesigns.com Providing Solutions That Increase Productivity Web Developement. Database. Hosting. Multimedia. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] ADV SQL Help Needed.
This sample also work in PhpMyAdmin, but not from the php code. Please advise. **see previous post, for sample code** Thanks Rick. -john =P e p i e D e s i g n s www.pepiedesigns.com Providing Solutions That Increase Productivity Web Developement. Database. Hosting. Multimedia. On Tue, 21 Jan 2003, Rick Emery wrote: SELECT risk_level, COUNT(*) FROM mytable GROUP BY risk_level; - Original Message - From: [-^-!-%- [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 21, 2003 6:06 AM Subject: [PHP] ADV SQL Help Needed. Hello everyone, I need help with the following query. I have a table with a column named 'RISK_LEVEL'. RISK_LEVEL can hold three values: Low, Moderate, and High. I need a query that counts the number of occurences of each option. Now, I know I can do 'select count(risk_level) as levelCount where risk_level=low' for each level (low, moderate, and high). But, I was wondering if there's anyway to merge the queries into one. I'm looking for something like select count(risk_level='low') as lowCount, count(risk_level='moderate')as modCount, count(risk_level='high') as highCount Which will return, lowCount = 1 , modCount=3, and highCount=1, for table with id | risk_level 1 | low 2 | moderate 3 | moderate 4 | high 5 | moderate How do you do it? Can tha be done? When I run the code above, I get the same number for each record. i.e. lowCount, modCount, and highCount all come out to 5--which is the number of records in the table. Is this possible, or should I just run multiple queries? Please help. =P e p i e D e s i g n s www.pepiedesigns.com Providing Solutions That Increase Productivity Web Developement. Database. Hosting. Multimedia. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] ADV SQL Help Needed.
SELECT risk_level, COUNT(*) FROM mytable GROUP BY risk_level; - Original Message - From: [-^-!-%- [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 21, 2003 6:06 AM Subject: [PHP] ADV SQL Help Needed. Hello everyone, I need help with the following query. I have a table with a column named 'RISK_LEVEL'. RISK_LEVEL can hold three values: Low, Moderate, and High. I need a query that counts the number of occurences of each option. Now, I know I can do 'select count(risk_level) as levelCount where risk_level=low' for each level (low, moderate, and high). But, I was wondering if there's anyway to merge the queries into one. I'm looking for something like select count(risk_level='low') as lowCount, count(risk_level='moderate')as modCount, count(risk_level='high') as highCount Which will return, lowCount = 1 , modCount=3, and highCount=1, for table with id | risk_level 1 | low 2 | moderate 3 | moderate 4 | high 5 | moderate How do you do it? Can tha be done? When I run the code above, I get the same number for each record. i.e. lowCount, modCount, and highCount all come out to 5--which is the number of records in the table. Is this possible, or should I just run multiple queries? Please help. =P e p i e D e s i g n s www.pepiedesigns.com Providing Solutions That Increase Productivity Web Developement. Database. Hosting. Multimedia. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
