| % comment indicator | Comments |
| % operator: modulo function | MOD function [Numeric] |
| &: bitwise operator | Bitwise operators |
| - comment indicator | Comments |
| /* comment indicator | Comments |
| // comment indicator | Comments |
| 2000 compliance | Year 2000 compliance |
| @@char_convert global variable: list of supported global variables | Global variables |
| @@client_csid global variable: list of supported global variables | Global variables |
| @@client_csname global variable: list of supported global variables | Global variables |
| @@connections global variable: list of supported global variables | Global variables |
| @@cpu_busy global variable: list of supported global variables | Global variables |
| @@dbts global variable: list of global variables | Global variables |
| @@error global variable: list of global variables | Global variables |
| @@error global variable: list of supported global variables | Global variables |
| @@fetch_status global variable: list of global variables | Global variables |
| @@identity global variable: description | @@identity global variable |
| @@identity global variable: list of global variables | Global variables |
| @@identity global variable: list of supported global variables | Global variables |
| @@identity global variable: triggers | @@identity global variable |
| @@idle global variable: list of supported global variables | Global variables |
| @@io_busy global variable: list of supported global variables | Global variables |
| @@isolation global variable: list of global variables | Global variables |
| @@isolation global variable: list of supported global variables | Global variables |
| @@langid global variable: list of supported global variables | Global variables |
| @@language global variable: list of supported global variables | Global variables |
| @@maxcharlen global variable: list of supported global variables | Global variables |
| @@max_connections global variable: list of supported global variables | Global variables |
| @@ncharsize global variable: list of supported global variables | Global variables |
| @@nestlevel global variable: list of supported global variables | Global variables |
| @@packet_errors global variable: list of supported global variables | Global variables |
| @@pack_received global variable: list of supported global variables | Global variables |
| @@pack_sent global variable: list of supported global variables | Global variables |
| @@procid global variable: list of global variables | Global variables |
| @@procid global variable: list of supported global variables | Global variables |
| @@rowcount global variable: list of global variables | Global variables |
| @@rowcount global variable: list of supported global variables | Global variables |
| @@servername global variable: list of global variables | Global variables |
| @@servername global variable: list of supported global variables | Global variables |
| @@spid global variable: list of supported global variables | Global variables |
| @@sqlstatus global variable: list of global variables | Global variables |
| @@sqlstatus global variable: list of supported global variables | Global variables |
| @@textsize global variable: list of supported global variables | Global variables |
| @@thresh_hysteresis global variable: list of supported global variables | Global variables |
| @@timeticks global variable: list of supported global variables | Global variables |
| @@total_errors global variable: list of supported global variables | Global variables |
| @@total_read global variable: list of supported global variables | Global variables |
| @@total_write global variable: list of supported global variables | Global variables |
| @@tranchained global variable: list of supported global variables | Global variables |
| @@trancount global variable: list of supported global variables | Global variables |
| @@transtate global variable: list of supported global variables | Global variables |
| @@version global variable: list of global variables | Global variables |
| @@version global variable: list of supported global variables | Global variables |