https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260090#M41341 If you have to do a lot of this type of conversion, you may want to consider tConvertType. <BR />This is a link to a video that converts Strings to Longs w/o having to add Java in expressions. <BR /> <A href="http://bekwam.blogspot.com/2011/02/tutorial-converting-data-types-with.html" rel="nofollow noopener noreferrer">http://bekwam.blogspot.com/2011/02/tutorial-converting-data-types-with.html</A> <BR />-Carl Mon, 21 Mar 2011 15:10:20 GMT Anonymous 2011-03-21T15:10:20Z https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260088#M41339 HI,<BR />Could any one post the solution for converting Long to String and String to Long.<BR />Thanks,<BR />-Teja Sat, 16 Nov 2024 13:01:35 GMT https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260088#M41339 Anonymous 2024-11-16T13:01:35Z https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260089#M41340 Long to String:<BR /><PRE>&lt;var&gt;.toString()<BR />//to protect agianst null pointers:<BR />&lt;var&gt; == null ? null : var.toString()</PRE><BR />String to Long:<BR /><PRE>Long.parseLong(&lt;var&gt;)</PRE> Mon, 21 Mar 2011 14:38:51 GMT https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260089#M41340 Anonymous 2011-03-21T14:38:51Z https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260090#M41341 If you have to do a lot of this type of conversion, you may want to consider tConvertType. <BR />This is a link to a video that converts Strings to Longs w/o having to add Java in expressions. <BR /> <A href="http://bekwam.blogspot.com/2011/02/tutorial-converting-data-types-with.html" rel="nofollow noopener noreferrer">http://bekwam.blogspot.com/2011/02/tutorial-converting-data-types-with.html</A> <BR />-Carl Mon, 21 Mar 2011 15:10:20 GMT https://community.qlik.com/t5/Talend-Studio/How-to-convert-Long-to-String-and-String-to-Long/m-p/2260090#M41341 Anonymous 2011-03-21T15:10:20Z