Ok thank you for clarifying Mlaue.
Just an administrative note:
in case you are not able to write in English then it is preferred that you use a translation service to translate your native language to English and post both messages.
It is frowned upon to not use English, unless you are writing in one of the language specific subforums. Unfortunately there isn't a German subforum here.
Also unfortunate is the fact that the wiki page I referred to is not available in German.
The actual TSQLScript script seems nothing more than TStrings. And for that there is a German page:
https://wiki.freepascal.org/TStringList-TStrings_Tutorial/deso for example (assuming that you placed the sqlscript component on your form and named it FBScript):
..
FBScript.Script.Clear;
FBScript.Script.Add('sql statement 1');
FBScript.Script.Add('sql statement 2');
FBScript.Execute;
...
Similar as was showed in the wikipage from my first reply that I linked to (except in the wiki example the statements were loaded into a stringlist first then copied to the SQLScript strings and the component was created at runtime).