4. Embedded SQL for Fortran : Fortran Variables and Data Types : Variable and Type Declarations : Reserved Words in Declarations
 
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Reserved Words in Declarations
Fortran keywords are reserved, therefore you cannot declare types or variables with the same name as these keywords:
byte
character
complex
double
integer
logical
map
parameter
precision
real
record
structure
The Embedded SQL preprocessor does not distinguish between uppercase and lowercase in keywords. In generating Fortran code, it converts any uppercase letters in keywords to lowercase.