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Luis, maybe I did not make it very clear in my question:
I already knew that " :variable" (with a colon) refers to a host (RPG) variable.
My question was: (as from your example):
... where Number = :Number;
in this sentence Number and :Number refer to different variables: the one from RPG (:Number) and the SQL variable (Number).
Don't they?

In Brigitta's post I was asking:

Clear IsFound;
Exec SQL Select 1 Into :iSFound
From MyFile
Where ....
Fetch first row only;

my question was relative to the variable being "cleared" IsFound without colon
versus the receiving one in the Select ":iSFound" with colon...
TIA
--------------------------------------------------------------------------------

Luis Rodriguez escribió:
Antonio,

In short, yes.

In embedded RPG SQL, when you prefix a variable with : it means that
variable belongs to the RPG program. For example, if I say:

EXEC SQL
Select 1 from my table
Where Number = :Number;

The First "Number" belongs to the SQL table. The second one to your program.

HTH,

Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries


On Sun, Feb 7, 2010 at 6:21 AM, Antonio Fernandez-Vicenti <
afvaiv@xxxxxxxxxxxxxx> wrote:

Birgitta Hauser escribió:
To avoid this problem enhance the statement as follows:

Clear IsFound;
Exec SQL Select 1 Into :iSFound
From MyFile
Where ....
Fetch first row only;
Sorry if I'm asking a stupid question, but... are the variables:
- "IsFound" being cleared by "Clear"
- and "*:*iSFound" (prefixed with "colon :"...) in the Select
referring to the same variable?
Sorry if I'm short in SQL knowledge...

--
Antonio Fernandez-Vicenti
afvaiv@xxxxxxxxxxxxxx

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