i want to generate 4 unique digit each time from 1 to 12. For example: [1,3,4,6] or [1,3,10,6] or [1,2,3,4]... but not like [1,2,8,1] or [2,2,4,5]
because in last two chunk 1 comes twice and so as 2 in second chunk. Again i need to generate those unique chunk of numbers randomly.

Any help will be appreciated. Big thanks in advance...:) 


Question: Experience with direct data access components
Answer: I've never used MyDAC before. My experience is with DAC for MySQL from http://www.microolap.com/.

So far so good. Pretty easy to drop onto my Delphi projects, set the values of various properties, and then ready to connect. It has quite a number of useful components that allows you to retrieve data in several ways and you can use it easily with TDataSource.

No issues with deployment as well. All compiled nicely into one EXE.

Hope this helps!