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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#include <tntdb/connect.h>
#include <tntdb/result.h>
#include <tntdb/value.h>
#include <cxxtools/arg.h>
#include <cxxtools/hirestime.h>
int main(int argc, char* argv[])
{
try
{
cxxtools::Arg<bool> prepared(argc, argv, 'p');
cxxtools::Arg<bool> cached(argc, argv, 'c');
tntdb::Connection conn = tntdb::connect("mysql:db=DS2;user=web;passwd=web");
unsigned max = conn.selectValue("select max(PROD_ID) from PRODUCTS")
.getUnsigned();
cxxtools::HiresTime t0 = cxxtools::HiresTime::gettimeofday();
unsigned sum = 0;
if (cached)
{
for (unsigned n = 1; n < max; ++n)
{
tntdb::Statement stmt = conn.prepareCached(
"select CATEGORY from PRODUCTS where PROD_ID = :prodId");
stmt.set("prodId", n);
sum += stmt.selectValue().getUnsigned();
}
}
else if (prepared)
{
tntdb::Statement stmt = conn.prepare(
"select CATEGORY from PRODUCTS where PROD_ID = :prodId");
for (unsigned n = 1; n < max; ++n)
{
stmt.set("prodId", n);
sum += stmt.selectValue().getUnsigned();
}
}
else
{
for (unsigned n = 1; n < max; ++n)
{
tntdb::Statement stmt = conn.prepare(
"select CATEGORY from PRODUCTS where PROD_ID = :prodId");
stmt.set("prodId", n);
sum += stmt.selectValue().getUnsigned();
}
}
cxxtools::HiresTime t1 = cxxtools::HiresTime::gettimeofday();
std::cout << "count=" << max << "\n"
"sum=" << sum << "\n"
"t=" << (t1 - t0) << std::endl;
}
catch (const std::exception& e)
{
std::cerr << e.what() << std::endl;
}
}
|
