Word Documents vs. Wiki

It was this typical clash of cultures when a real IT guy, scientist, mathematician or engineer joined a company and suddenly an office package had to be used. It could have been any of them, think LibreOffice or MS-Office, but there were some others, that have meanwhile lost relevance. We liked to use text files […]

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SQL: DROP, CREATE,… How to avoid errors?

In SQL we often want to create or drop an object (TABLE, VIEW, SEQUENCE, INDEX, SYNONYM, DATABASE, USER, SCHEMA,….) Now we do not know if this thing exists or not. We would like to write scripts, that work in either case. So something like CREATE TABLE IF NOT EXISTS XYZ (…); or DROP TABLE IF […]

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Serialization

Deutsch Serialization allows us to store objects in a lossless way or to transfer them over the network. This could be done before, but it was necessary to program the serialization mechanism, which was a lot of work. Of course, they were not yet called objects in those days… Java suddenly had such a serialization […]

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