Displaying 3 results from an estimated 3 matches for "fromc".
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2015 Jul 27
2
Error sql en función
...DADES_SQL = sqldf (paste ("select * from", XDADES, XWHE, sep = " "))
+ return(XDADES_SQL)
+ }
> DADES_SEL = SQL_PROVA (XDADES = birthwt, XWHE = "where age < '40'")
Error in sqliteSendQuery(con, statement, bind.data) :
error in statement: near "fromc": syntax error
==========================
Alguien puede ayudarme y decir que estoy haciendo mal? El problema debe estar en el "paste" ya que si coloco la orden original funciona:
==========================
> SQL_PROVA = function (XDADES, XWHE)
+ {
+ XDADES_SQL2 = sqldf (&quo...
2015 Jul 27
2
Error sql en función
...t;, XDADES, XWHE, sep = " "))
> > + return(XDADES_SQL)
> > + }
> > > DADES_SEL = SQL_PROVA (XDADES = birthwt, XWHE = "where age < '40'")
> > Error in sqliteSendQuery(con, statement, bind.data) :
> > error in statement: near "fromc": syntax error
> > ==========================
> >
> > Alguien puede ayudarme y decir que estoy haciendo mal? El problema debe
> > estar en el "paste" ya que si coloco la orden original funciona:
> >
> > ==========================
> > > SQL...
2010 Apr 14
2
Why no race condition when returning UNPROTECT-ed memory from C?
Consider the C (or C++) code called from the .Call interface:
SEXP foo() {
SEXP *p = PROTECT(allocVector(REALSXP, 10));
...
UNPROTECT(1);
return p;
}
Why is there no danger that the allocated memory will be garbage
collected after the UNPROTECT, but before the return of p?
I have used code like this for some time and have never had a
problem, but I'm not sure if/why it is guaranteed