update row with combination of fields in same row lazarus / 16-Databases ---------------------------------------------------------------------- ronhud · 2018-09-24 10:42 I have a Firebird database with about 100 tables with identical structure.  A table has rows which contain a Date column , a Time column and a Timestamp column.   I want to update the Timestamp by combining the Date and Time coulmns for that row.    I can find examples of using two different tables for this but not so far for the same table.  I thought of a SQLQuery with update and select but I cant see how to combine these in the one statement . ---------------------------------------------------------------------- ttomas · 2018-09-24 11:04 This is FirebirdSQL question Code: Pascal  [Select][+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i update table1 set mytimestampfield=mydatefield+mytimefield ---------------------------------------------------------------------- ronhud · 2018-09-24 11:08 thanks so simple!