| HAVING clause : SELECT statement | SELECT statement |
| heading : Interactive SQL option | HEADINGS option [ISQL |
| heading name | SELECT statement |
| HELP statement : syntax | HELP statement [ISQL] |
| hexadecimal constants : about | Numeric data types |
| hexadecimal constants : data type | TSQL_HEX_CONSTANT option |
| HEXTOINT function | HEXTOINT function [Data type conversion] |
| HintUsed property | Connection properties Properties available for the server |
| HOST communication parameter | HOST parameter [IP] |
| host variables | Statement elements |
| host variables : declaring | Declaration section [ESQL] |
| host_id Adaptive Server Enterprise function | Connection properties |
| host_name Adaptive Server Enterprise function | Connection properties |
| HOUR function | HOUR function [Date and time] |
| HOURS function | HOURS function [Date and time] |