Re: Using Embedded SQL

it can be done with the following steps

c/Exec SQL
c+   declare s1 statement
c/End-Exec

c/Exec SQL
c+   declare c1 cursor for s1
c/End-Exec

c/Exec SQL
c+   declare c2 cursor for
c+      select * from File A
c/End-Exec

c/Exec SQL
c+   open C2
c/End-Exec

loop thru the cursor 2 with *)

c/Exec SQL
c+   fetch next from C2 into :fNam
c/End-Exec

build the string with
c                        eval             SqlStmt = 'select ' + fNam
for the first and
c                        eval             SqlStmt = SqlStmt + ', ' + fNam
for the rest (SqlStmt declared as varying)

c/Exec SQL
c+   close C2
c/End-Exec

now complete the statement

c                        eval             SqlStmt = SqlStmt + ' from FileB'

now prepare the statement

c/Exec SQL
c+   prepare s1 from :SqlStmt
c/End-Exec

now open the cursor 1

c/Exec SQL
c+   open c1
c/End-Exec

now do whatever you want

*) you can do a multiple row fetch into an array and loop thru the array
here

---------------------------
Dipl.Inf.(FH) Rolf P Mittag
IBM Partner in Development
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