Matthias Apitz schrieb am 13.09.2019 um 07:28: > We're porting a huge Library Management System, written using all kind > of languages one can think of (C, C++, ESQL/C, Perl, Java, ...) on Linux > from the DBS Sybase to PG, millions of lines of code, which works also > with DBS Oracle and in the past with INFORMIX-SE and -ONLINE. > > We got to know that in CHAR columns with trailing blanks a In a nutshell: do not use the CHAR data type (neither in Oracle nor in Postgres) Unless your application actively checks the data type name of columns in a table you can simply change the type of those columns to varchar (or text) and get rid of the annoying (but required) behaviour of the CHAR type. To be honest, I am surprised this didn't show up in Oracle, as I think the CHAR behaviour there is the same as in Postgres. Thomas