https://community.qlik.com/t5/Talend-Studio/tUniqrow-How-to-avoid-null-values/m-p/2202254#M4022 You should filter the null values before or simply replace them with a fix value. Sun, 15 Feb 2015 08:47:31 GMT Anonymous 2015-02-15T08:47:31Z https://community.qlik.com/t5/Talend-Studio/tUniqrow-How-to-avoid-null-values/m-p/2202253#M4021 Hi there,&nbsp;<BR />can we avoid null values in tUniqrow, for example i have this data below as input<BR />Column A, Column B<BR />1,a<BR />1,b<BR />,c<BR />2,d<BR />2,g<BR />output is 1,null,2<BR />can the null be avoided ? i did not see any option.<BR />please help!<BR />Thanks in Adv Sat, 14 Feb 2015 19:08:15 GMT https://community.qlik.com/t5/Talend-Studio/tUniqrow-How-to-avoid-null-values/m-p/2202253#M4021 Anonymous 2015-02-14T19:08:15Z https://community.qlik.com/t5/Talend-Studio/tUniqrow-How-to-avoid-null-values/m-p/2202254#M4022 You should filter the null values before or simply replace them with a fix value. Sun, 15 Feb 2015 08:47:31 GMT https://community.qlik.com/t5/Talend-Studio/tUniqrow-How-to-avoid-null-values/m-p/2202254#M4022 Anonymous 2015-02-15T08:47:31Z