How to fetch records from the database into a combo box?

Hi:
I´m really new with ABLBPM and I´m trying to fetch records from the database to display them into a combo box as valid values for a presentation but I´m using a dynamic method with this code:
for each row in SELECT campo1, campo2 from TABLE
do
solicitudes[] = [row.campo1, row.campo2]
end
return solicitudes
And the debugger says that SQL instructions can be used only in fuctions and procedures that are executed on the server.
Do you know another way to do it?
P.D. Sorry for my terrible english
Greetings

Hi Steve,
Thank you, your idea is perfect, but when I try to run the screenflow where the combo should be filled I get this error:
fuego.lang.ComponentExecutionException: No se ha podido ejecutar correctamente la tarea.
Motivo: 'java.lang.NullPointerException'.
     at fuego.web.execution.InteractiveExecution.setExecutionError(InteractiveExecution.java:307)
     at fuego.web.execution.InteractiveExecution.process(InteractiveExecution.java:166)
     at fuego.web.execution.impl.WebInteractiveExecution.process(WebInteractiveExecution.java:54)
     at fuego.webdebugger.servlet.DebuggerServlet.redirect(DebuggerServlet.java:136)
     at fuego.webdebugger.servlet.DebuggerServlet.doPost(DebuggerServlet.java:85)
     at fuego.webdebugger.servlet.DebuggerServlet.doGet(DebuggerServlet.java:66)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
     at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
     at fuego.web.execution.servlet.ServletExternalContext.forwardInternal(ServletExternalContext.java:197)
     at fuego.web.execution.servlet.ServletExternalContext.processAction(ServletExternalContext.java:110)
     at fuego.webdebugger.servlet.DebuggerExecution.dispatchComponentExecution(DebuggerExecution.java:64)
     at fuego.web.execution.InteractiveExecution.invokePrepare(InteractiveExecution.java:351)
     at fuego.web.execution.InteractiveExecution.process(InteractiveExecution.java:192)
     at fuego.web.execution.impl.WebInteractiveExecution.process(WebInteractiveExecution.java:54)
     at fuego.web.execution.InteractiveExecution.process(InteractiveExecution.java:223)
     at fuego.webdebugger.servlet.DebuggerServlet.doDebug(DebuggerServlet.java:148)
     at fuego.webdebugger.servlet.DebuggerServlet.doPost(DebuggerServlet.java:82)
     at fuego.webdebugger.servlet.DebuggerServlet.doGet(DebuggerServlet.java:66)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
Any ideas??
Thanks and greetings

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