https://www.tntware.com/donorhub/help/en/pages/is-valid-query.aspxThe "Is Valid" query allows you to ensure that the connection string refers to a correct database. This is especially important when sharing your template with others, to help ensure that they don't use your template to query the wrong applicationenCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)