New global variables

@@datefirst

Set using set datefirst n where n is a value between 1 and 7. Returns the current value of @@datefirst, indicating the specified first day of each week (1 for Sunday, 2 for Monday, and so on), expressed as tinyint.

The default value in Adaptive Server is 1, Sunday (based on the us_language default).

@@lock_timeout

Set using set lock wait n. Returns the current lock_timeout setting, in milliseconds. @@lock_timeout returns the value of n. The default value is no timeout. If no set lock wait n is executed at the beginning of the session, @@lock_timeout returns -1.

@@max_precision

Returns the precision level used by decimal and numeric datatypes set by the server. This value is a fixed constant of 38.