Assume Sybase ASE.
Transmission with Sybase Central and SQL Advantage as part of client tools. Sybase Central allows you to manage and create tables, views, sprocs, etc. SQL Advantage allows you to run SQL ...
Sybase Workspace is a new tool for ASE, I have never tried it. http://www.sybase.com/products/modelingdevelopment/workspace
ASE ISQL is a free tool that is also useful for sql, but less useful for modifying stored procedures, etc. (more replacement for SQL Advantage). http://code.google.com/p/aseisql/
If you have money to spend, then there is also Embarcadero DBArtisan. http://www.embarcadero.com/products/dbartisan . I used this and it is pretty good, although their support for MSSQL and Oracle is better than Sybase support.
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