Setting variable

Started by Ranieri Mazilialmost 19 years ago2 messagesgeneral
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#1Ranieri Mazili
ranieri.oliveira@terra.com.br

Hello,
I need to know why can't I do it?

CREATE OR REPLACE FUNCTION lost_hours_temp(date)
RETURNS text AS
$BODY$
DECLARE
START_DATE date;
END_DATE date;
QUERY text;
BEGIN
START_DATE := $1;
END_DATE := START_DATE - interval '3 year';

The last line (END_DATE := START_DATE - interval '3 year';) generate the
following error:

ERROR: operator is not unique: "unknown" / "unknown"
SQL state: 42725
Hint: Could not choose a best candidate operator. You may need to add
explicit type casts.
Context: PL/pgSQL function "lost_hours_temp" line 10 at assignment

How can I solve it?

Thanks

#2Michael Glaesemann
grzm@seespotcode.net
In reply to: Ranieri Mazili (#1)
Re: [SQL] Setting variable

On Jun 18, 2007, at 9:29 , Ranieri Mazili wrote:

CREATE OR REPLACE FUNCTION lost_hours_temp(date)
RETURNS text AS
$BODY$
DECLARE
START_DATE date;
END_DATE date;
QUERY text;
BEGIN
START_DATE := $1;
END_DATE := START_DATE - interval '3 year';

The last line (END_DATE := START_DATE - interval '3 year';)
generate the following error:

ERROR: operator is not unique: "unknown" / "unknown"
SQL state: 42725
Hint: Could not choose a best candidate operator. You may need to
add explicit type casts.
Context: PL/pgSQL function "lost_hours_temp" line 10 at assignment

Note that the error is at line 10. You've only shown lines 1 through
7 of the function body, so you haven't actually shown us where the
error is.

Michael Glaesemann
grzm seespotcode net