Re: A question of negative numbers..
abs() - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, September 01, 2004 12:59 PM Subject: A question of negative numbers.. Hi, I have a query that returns a list of numbers ranging from -10 to +10 I would like to be able to have a 2nd column where a result of 5 is 5 but -5 is also 5, so in effect all the negative (and only the negative) results are made positive to find the deviation from zero. so 5, 4, -3, 4, -1, 0 would become 5, 4, 3, 4, 1, 0 I have been searching for if then else in google so I could do if a 0 then a = 0-a but no joy. is there a function to make negative numbers positive? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: A question of negative numbers..
Found answer to my own question: Returns the absolute value of X: mysql SELECT ABS(2); - 2 mysql SELECT ABS(-32); - 32 This function is safe to use with BIGINT values. MySQL Reference Manual (C) 2002 MySQL AB
Re: A question of negative numbers..
[EMAIL PROTECTED] wrote on 01/09/2004 11:59:58: is there a function to make negative numbers positive? ABS(x) See http://dev.mysql.com/doc/mysql/en/Mathematical_functions.html Alec -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: A question of negative numbers..
ABS(column) ? - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, September 01, 2004 6:59 AM Subject: A question of negative numbers.. Hi, I have a query that returns a list of numbers ranging from -10 to +10 I would like to be able to have a 2nd column where a result of 5 is 5 but -5 is also 5, so in effect all the negative (and only the negative) results are made positive to find the deviation from zero. so 5, 4, -3, 4, -1, 0 would become 5, 4, 3, 4, 1, 0 I have been searching for if then else in google so I could do if a 0 then a = 0-a but no joy. is there a function to make negative numbers positive? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: A question of negative numbers..
[EMAIL PROTECTED] wrote: Hi, I have a query that returns a list of numbers ranging from -10 to +10 I would like to be able to have a 2nd column where a result of 5 is 5 but -5 is also 5, so in effect all the negative (and only the negative) results are made positive to find the deviation from zero. so 5, 4, -3, 4, -1, 0 would become 5, 4, 3, 4, 1, 0 I have been searching for if then else in google so I could do if a 0 then a = 0-a but no joy. is there a function to make negative numbers positive? You've already discovered ABS(), the absolute value function, which is the correct solution. I just wanted to point out that mysql does have an IF() function, as well, since you didn't find it. For example, you could accomplish the same thing with IF(a = 0, a, -a) IF() is documented in the manual http://dev.mysql.com/doc/mysql/en/Control_flow_functions.html. I'd suggest trying the manual first, rather than Google, when looking for mysql functions. Michael -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
