| WaitReadCmp property | Connection properties Properties available for the server |
| WaitReadOpt property | Connection properties Properties available for the server |
| WaitReadSys property | Connection properties Properties available for the server |
| WaitReadTemp property | Connection properties Properties available for the server |
| WaitReadUnkn property | Connection properties Properties available for the server |
| WAIT_FOR_COMMIT option | General database options WAIT_FOR_COMMIT option |
| warnings : error messages | Alphabetic list of error messages |
| warnings : SQLSTATE values | Error messages index by SQLSTATE |
| WATFILE file format | INPUT_FORMAT option [ISQL OUTPUT_FORMAT option [ISQL |
| WEEKS function | WEEKS function [Date and time] |
| WHENEVER statement : syntax | WHENEVER statement [ESQL] |
| WHERE clause : SELECT statement | SELECT statement |
| WHILE statement : syntax | LOOP statement |
| WHILE statement : Transact-SQL | WHILE statement [T-SQL] |
| wide inserts | EXECUTE statement [ESQL] |
| Windows NT performance monitor | Monitoring database statistics from the Windows NT Performance Monitor |
| Windows NT services : registry entries | Current user and local machine settings |
| WITH HOLD clause : OPEN statement | OPEN statement [ESQL] [SP] |
| write files | The DBWRITE command-line utility |
| write files : altering | ALTER WRITEFILE statement |
| write files : creating | CREATE WRITEFILE statement |
| write files : erasing | The Erase utility |
| write files utility | The Write File utility |
| WRITETEXT statement : Transact-SQL | WRITETEXT statement [T-SQL] |
| WSAVERSION communication parameter | WSAVERSION parameter [WSAVER] |