Witango-Talk: array different
Hello, Is there a metatag that takes 2 arrays and creates an array of the records that don't appear in either array? A reverse @union. Tango2000 IIS 5 Win2000 SQL 7 Brad
RE: Witango-Talk: array different
Brad, If you really want stuff that doesn't appear in either array, <@random> will usually work. :) If you want elements from one array that are not in the other array you can use <@filter>. <@filter array=array1 expr="!(@@array2 contains #1)"> (this assumes both arrays have 1 column ) If you want elements from either array that are not in both arrays, you can use the above <@filter> twice and add the results together. <@assign local$array3 <@filter array=array1 expr="!(@@array2 contains #1)">> <@addrows array=local$array3 value=<@filter array=array2 expr="!(@@array1 contains #1)">> Unfortunately the server will throw an error processing empty arrays, so you may want to test for empty before using <@filter> or <@addrows>. Dave Shelley. [EMAIL PROTECTED] -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brad J. RobertsonSent: Saturday, December 14, 2002 4:41 PMTo: Multiple recipients of list witango-talkSubject: Witango-Talk: array different Hello, Is there a metatag that takes 2 arrays and creates an array of the records that don't appear in either array? A reverse @union. Tango2000 IIS 5 Win2000 SQL 7 Brad
Re: Witango-Talk: array different
Awesome thanks - I am suffering weekend brain damage. - Original Message - From: David Shelley To: Multiple recipients of list witango-talk Sent: Saturday, December 14, 2002 3:54 PM Subject: RE: Witango-Talk: array different Brad, If you really want stuff that doesn't appear in either array, <@random> will usually work. :) If you want elements from one array that are not in the other array you can use <@filter>. <@filter array=array1 expr="!(@@array2 contains #1)"> (this assumes both arrays have 1 column ) If you want elements from either array that are not in both arrays, you can use the above <@filter> twice and add the results together. <@assign local$array3 <@filter array=array1 expr="!(@@array2 contains #1)">> <@addrows array=local$array3 value=<@filter array=array2 expr="!(@@array1 contains #1)">> Unfortunately the server will throw an error processing empty arrays, so you may want to test for empty before using <@filter> or <@addrows>. Dave Shelley. [EMAIL PROTECTED] -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brad J. RobertsonSent: Saturday, December 14, 2002 4:41 PMTo: Multiple recipients of list witango-talkSubject: Witango-Talk: array different Hello, Is there a metatag that takes 2 arrays and creates an array of the records that don't appear in either array? A reverse @union. Tango2000 IIS 5 Win2000 SQL 7 Brad
