blob: 2a82e9e786fe0de59174a66e9857bc0ed05c0cc5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
#* HISTORY *
#* 17-Mar-97 I.Busko created
#* 15-Jan-97 B.Simon modified to call trsrows
# SELROWS -- Count how many rows are selected by an expression
int procedure selrows (tp, expr)
pointer tp # i: table descriptor
char expr[ARB] # i: expression to be evaluated
#--
int nrow
pointer set
int rst_nelem()
pointer trsrows()
errchk trsrows
begin
# Compute set of rows matching expression
set = trsrows (tp, expr)
# Count number of rows in set
nrow = rst_nelem (set)
call rst_free (set)
return (nrow)
end
|
