Informix vs Sybase(Urgent)

Hi, Some consulting company is trying to persuade us to switch my group from Informix to Sybase, and they gave us the following arguments. Do you know if the following arguments are true? Which is better choice? Thanks, Frank 1. Informix doesn't support a fixed-width binary datatype, like the Informix "binary" type, or the Oracle "RAW" type. The primary key value we'd like to use is most efficiently represented using a binary datatype. As a workaround, we can represent the value as text, using the Informix "CHAR" type, but in doing so we take a performance hit. 2. Informix doesn't support the type of stored procedure construct we need. Though Informix does support stored procs, it doesn't seem to support a form of stored proc which lets you rapidly evaluate a query, and then return the result set as a series of rows in the same fashion that a SELECT might. Currently, "Hot List" calculation is being done in the database using a single SQL query. In development, we implemented this query as a Sybase stored procedure for maximum efficiency. Since we couldn't find an appropriate mapping for this functionality in Informix, we're evaluating the "Hot List" query like any other SQL statement---which isn't as efficient as we'd like. 3. Informix doesn't support any mechanism for limiting the number of rows fetched by a query (Sybase does this using the "set rowcount" feature). This is somewhat alarming since some queries could potentially select the entire database. There isn't a very good workaround for this problem, that I'm aware of. The other reasons we're recommending Sybase: 1. Sybase is case-sensitive, so it won't be mangling our table and column names like Informix (lowercases everything) and Oracle (uppercases everything). Merely annoying, but it's another tidbit in favor of Sybase. 2. There are several public domain database access tools for Sybase (dsql, squish, etc) which are more powerful and user-friendly than the Informix alternatives (dbaccess). Again, this is merely an issue of convenience during development.