concat()

eg

update [tablename] set [field_name1] = concat([field_name1],[fieldname2])

useful if you have to make keywords or descriptions from other fields

also useful is trim()
eg

select trim(trailing ‘.png’ from [field_name]) will get the image name without the .png on the end too, so you can do

update [tablename] set [field_name2] = trim(trailing ‘.png’ from [table_name])

very useful if importing images somewhere and you have 3 cols of images, small, med and large, etc and all have the same name, just with an _sm etc on the end

that one would be

update [tablename] set [field_name2] = concat(trim(trailing ‘.png’ from [table_name]),’_sm.png’)

then you end up making

image_sm.png in field2 from image.png in field 1