Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.0.0/doc/selectlib/node12.html
Дата изменения: Wed Jun 28 22:42:53 2006
Дата индексирования: Sat Dec 22 11:47:53 2007
Кодировка:

Поисковые слова: integral
Table column names XMM-Newton SAS Home Page
XMM-Newton Science Analysis System


selectlib (selectlib-4.68) [xmmsas_20060628_1801-7.0.0]

Null value function Description Subexpressions in table attributes Home Index

Meta Index / Home Page / Description

Table column names

Column identifiers can refer to table columns of scalar integral, floating point, boolean, or string type. Mixed-type arithmetic is supported with the exception that names of boolean and string columns must not be used in arithmetic sub-expressions. Names of boolean columns are valid logical sub-expressions, i.e., they do not need to be used in conjunction with the equality operators ==/!= and constants true/false to form valid logical sub-expressions, e.g. BOOLCOL==true is equivalent to BOOLCOL.

Vector columns are not yet supported.



XMM-Newton SOC/SSC -- 2006-06-28