Request into several databases simultaneously on TML

Prefix

Also as tables in DDL and DML, sections of single tree in TML can belong to different databases. And also as in DDL and DML, it's possible to specify location of section by prefix, which is before name of section through colon. Prefix can be

• nickname of concrete database

  db1:tablename1.db2:tablename2.db3:tablename3.db4:tablename4
  db1:tablename1.db2:*
  

• predicate
  • "all:" is all databases
  • "default:" is database, in which user "is"

  all:tablename1.db1:tablename2.all:tablename3.db2:tablename4
  all:tablename1.all:*
  default:tablename1.db1:tablename2.default:tablename3.db2:tablename4
  default:tablename1.default:*
  

• marker - word, meaning all databases consecutively (any two markers never simultaneously mean the same database). Sign "%" is put before marker.

  %db1:tablename1.%db2:tablename2.%db3:tablename3.%db4:tablename4
  %db1:tablename1.%db2:*
  

Dmitry Turin