At the site where I wrote it, it has been in constant use by a number of people for about 5 years. This prevents inadverted updating of data. Your queries will be Explained without being run. For more information, download the system.
Full documentation is included, as is all program source.
More Blurb I seem to spend all my spare time writing database query tools. But only because I can't believe how clumsy and badly written most of the products I come across are. Quite good, but has now been replaced with another product. Very successful in terms of it's enthusaistic acceptance from the people who use it, and the many years it is been in use for. This started off as a Windows version of Query , however has moved well beyond this in terms of function, and now works with many databases other than DB2.