Why readonly is true

[rastrahm]

Hi!

I installed the sqldb package, and the mysql package, and I take a problem:

With sqldb controls I connect 3 or 4 times and them occurs access violation, well I connect with mysql control and its is readonly.

I need what mysql dataset control update, ok I use then ExecSQL, but I bindind the DBEdit control with datasource control, I indicate a Insert instruccion them retraive Access Violation because its readonly property is true, How to change a readonly property? And, Why I am a problem with sqldb?